Upsilon Ophiuchi

Upsilon Ophiuchi
	Location of υ Ophiuchi (circled)
Observation data; Equinox J2000.0]] (ICRS)
Constellation	Ophiuchus
Right ascension	16h 27m 48.17331s
Declination	−08° 22′ 18.4156″
Apparent magnitude (V)	4.62
Characteristics
Spectral type	kA2hA5VmA5
U−B color index	+0.06
B−V color index	+0.16
Astrometry
Radial velocity (Rv)	−30.60 km/s
Proper motion (μ)	RA: −97.526 mas/yr ; Dec.: −33.97 mas/yr
Parallax (π)	25.0819 ± 0.2300 mas
Distance	130 ± 1 ly ; (39.9 ± 0.4 pc)
Absolute magnitude (MV)	1.75
Orbit
Primary	Aa1
Companion	Aa2
Period (P)	27.218±0.0005 d
Semi-major axis (a)	≥ 0.0583 astronomical unit\|AU
Eccentricity (e)	0.744±0.002
Periastron epoch (T)	2,438,914.84±0.01 JD
Argument of periastron (ω); (secondary)	333.7±0.7°
Semi-amplitude (K1); (primary)	34.9±0.3 km/s
Semi-amplitude (K2); (secondary)	41.1±0.3 km/s
Orbit
Primary	Aa
Companion	Ab
Period (P)	82.8±1.4 yr
Semi-major axis (a)	0.79±0.03″
Eccentricity (e)	0.45±0.03
Inclination (i)	31.2±5.7°
Longitude of the node (Ω)	86.8±6.9°
Periastron epoch (T)	B 1994.1±1.0
Argument of periastron (ω); (secondary)	177.9±7.4°
Details
Aa1
Mass	1.83 M☉
Radius	1.6 R☉
Luminosity	16.56 L☉
Surface gravity (log g)	4.45 cgs
Temperature	8,364 K
Metallicity [Fe/H]	+0.14 dex
Rotational velocity (v sin i)	44 km/s
Age	50 Myr
Aa2
Mass	1.47 M☉
Radius	1.4 R☉
Age	50 Myr
Ab1
Mass	0.82 M☉
Radius	0.86 R☉
Age	45 Myr
Ab2
Mass	0.70 M☉
Radius	0.69 R☉
Age	45 Myr
Other designations
	Alkarab, υ Oph, 3 Ophiuchi, BD−08°4243, FK5 3299, GC 22134, HD 148367, HIP 80628, HR 6129, SAO 141187, CCDM J16278-0822AB, WDS J16278-0822
Database references
SIMBAD	data

Short description: Multiple star in the constellation Ophiuchus

				Aa1

				Period = 27.s d

				Ab2

		Period = 82.8 yr

				Ab1

				Sep = 0.06 au

				Ab2

Hierarchy of orbits^[8]

Upsilon Ophiuchi is a quadruple star system in the equatorial constellation of Ophiuchus. It has a white hue and is faintly visible to the naked eye with an apparent visual magnitude of 4.62. The distance to this system is approximately 130 light years based on parallax. It is drifting closer with a radial velocity of −30.6 km/s.

The variable radial velocity of the brighter component was first observed by H. A. Abt in 1961. It is a double-lined spectroscopic binary system with an orbital period of 27.2 days and an eccentricity of 0.74.^[6] They have a combined magnitude of 4.71. Both components are similar stars with a combined stellar classification of kA2hA5VmA5, and one or both are Am stars.^[3] The fainter component has an 82.8 year orbit with the brighter pair at an eccentricity of 0.45,^[7] and is itself binary, making the system a quadruple.^[8] The system is a source for X-ray emission.^[12]

This system forms part of the Upsilon Ophiuchi cluster, a small group of six stars which share similar kinematics and are spread over about eight degrees. The two brightest stars, apart from Upsilon Ophiuchi itself, are sometimes listed as components B and C: B is HD 148300, and C is HD 144660.^[8] Both are 9th-magnitude K-class dwarfs.^[13]

Notes

↑ ^1.0 ^1.1 ^1.2 ^1.3 Calculated using angular diameters (0.37, 0.33, 0.20 and 0.16 milliarcseconds) and a distance of 39.9 parsecs via the equation R/R_☉ = (107.5Slovene pronunciation: [{{{1}}}]Thai pronunciation: [{{{1}}}]Neukirch, Jürgen; Schmidt, Alexander; Wingberg, Kay (2000), Cohomology of Number Fields, Grundlehren der Mathematischen Wissenschaften, 323, Berlin: Springer-Verlag, ISBN 978-3-540-66671-4Template:ScribuntoPersian pronunciation: [{{{1}}}]{| class="wikitable" width="100%"

! rowspan="3" colspan="2" width="14%" style="border-bottom:2px solid grey;" | Date/Time (UTC) ! Configuration ! Serial number ! Launch site ! Outcome |-

Parameter 1=time required!

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Hawaiian pronunciation: [{{{1}}}]German pronunciation: [{{{1}}}]Dutch pronunciation: [{{{1}}}]Belarusian pronunciation: [{{{1}}}]Catalan pronunciation: [{{{1}}}]{{{1}}}Mongolian pronunciation: [{{{1}}}]Javanese pronunciation: [{{{1}}}]

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Done

To doRussian pronunciation: [{{{1}}}]Greek pronunciation: [{{{1}}}]

Danish pronunciation: [{{{1}}}]Northern Sami pronunciation: [{{{1}}}]Mandarin pronunciation: [{{{ipa}}}]Cantonese pronunciation: [{{{1}}}]Entry from Upsilon Ophiuchi from TCI Europe, retrieved on {{{Date}}}

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Chambers, Robert; Thomson, Thomas Napier (1857). "[[s:A biographical dictionary of eminent Scotsmen/|]]". A Biographical Dictionary of Eminent Scotsmen. Glasgow: Blackie and Son.{{{1}}}Polish pronunciation: [{{{1}}}]Malagasy pronunciation: [{{{1}}}]Japanese pronunciation: [{{{1}}}]Armenian pronunciation: [{{{1}}}]Czech pronunciation: [{{{1}}}]∶Manx pronunciation: [{{{1}}}]http://www.iucnredlist.org/apps/redlist/details/full/{{{1}}}/0 Alemannic German pronunciation: [{{{1}}}]Tagalog pronunciation: [{{{1}}}]Egyptian Arabic pronunciation: [{{{1}}}]French pronunciation: [{{{1}}}]Error: Invalid time.

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|- | ... | — | — | — | — | — | —

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Hawaiian pronunciation: [{{{1}}}]German pronunciation: [{{{1}}}]Dutch pronunciation: [{{{1}}}]Belarusian pronunciation: [{{{1}}}]Catalan pronunciation: [{{{1}}}]{{{1}}}Mongolian pronunciation: [{{{1}}}]Javanese pronunciation: [{{{1}}}]

Not doneLatin pronunciation: [{{{1}}}]

| rowspan="1" colspan="2" style="border-top:2px solid #aabbcc;" |

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Vietnamese pronunciation: [{{{1}}}]

Life timeline

-4500 —

–

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–

-2500 —

–

-2000 —

–

-1500 —

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-1000 —

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white;">water

Single-celled
life

green;">photosynthesis

Eukaryotes

Multicellular
life

white;">Arthropods white;">Molluscs</span>]]

white;">Plants

Dinosaurs

Mammals

Flowers

Birds

Primates

←

←

←

←

←

←

←

←

←

←

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←

P
h
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Done

To doRussian pronunciation: [{{{1}}}]Greek pronunciation: [{{{1}}}]

Danish pronunciation: [{{{1}}}]Northern Sami pronunciation: [{{{1}}}]Mandarin pronunciation: [{{{ipa}}}]Cantonese pronunciation: [{{{1}}}]Entry from Upsilon Ophiuchi from TCI Europe, retrieved on {{{Date}}}

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Chambers, Robert; Thomson, Thomas Napier (1857). "[[s:A biographical dictionary of eminent Scotsmen/|]]". A Biographical Dictionary of Eminent Scotsmen. Glasgow: Blackie and Son.{{{1}}}Polish pronunciation: [{{{1}}}]Malagasy pronunciation: [{{{1}}}]Japanese pronunciation: [{{{1}}}]Armenian pronunciation: [{{{1}}}]Czech pronunciation: [{{{1}}}]∶Manx pronunciation: [{{{1}}}]http://www.iucnredlist.org/apps/redlist/details/full/{{{1}}}/0 Alemannic German pronunciation: [{{{1}}}]Tagalog pronunciation: [{{{1}}}]Egyptian Arabic pronunciation: [{{{1}}}]French pronunciation: [{{{1}}}]Error: Invalid time.

In progressPalomares, M. L. D. and Pauly, D., eds. (2011). "{{{1}}} {{{2}}}" in SeaLifeBase. April 2011 version.Turkish pronunciation: [{{{1}}}]Finnish pronunciation: [{{{1}}}]Froese, Rainer and Pauly, Daniel, eds. (2006). "{{{1}}} {{{2}}}" in FishBase. April 2006 version.

|- | ... | — | — | — | — | — | —

|-Old Norse pronunciation: [{{{1}}}]Salish pronunciation: [{{{1}}}]Basque pronunciation: [{{{1}}}]{{{1}}}data-sort-value="" style="background: #ececec; color: #2C2C2C; vertical-align: middle; font-size: smaller; text-align: center; " class="table-na" | UnreleasedNorwegian pronunciation: [{{{1}}}]Expression error: Unrecognized punctuation character "{"., {{{year}}} (aged {{{4}}})Hungarian pronunciation: [{{{1}}}]Quechua pronunciation: [{{{1}}}]Arabic pronunciation: [{{{1}}}]Punjabi pronunciation: [{{{1}}}]Afrikaans pronunciation: [{{{1}}}]Romanian pronunciation: [{{{1}}}]Hebrew pronunciation: [{{{1}}}][INVALID OR MISSING PARAMETER IN TEMPLATE Upsilon Ophiuchi]Uto-Aztecan pronunciation: [{{{1}}}]Tamil pronunciation: [{{{1}}}]Hindustani pronunciation: [{{{1}}}]Swedish pronunciation: [{{{1}}}]Kazakh pronunciation: [{{{1}}}]

Lao pronunciation: [{{{1}}}]Tibetan pronunciation: [{{{1}}}]Khmer pronunciation: [{{{1}}}]data-sort-value="" style="vertical-align:middle; text-align:center" class="table-na" | —{{{1}}}Welsh pronunciation: [{{{1}}}]

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References

↑ ^1.0 ^1.1 ^1.2 ^1.3 ^1.4 Anderson, E.; Francis, Ch. (2012). "XHIP: An extended hipparcos compilation". Astronomy Letters 38 (5): 331. doi:10.1134/S1063773712050015. Bibcode: 2012AstL...38..331A. Vizier catalog entry
↑ ^2.0 ^2.1 ^2.2 ^2.3 ^2.4 Vallenari, A. et al. (2022). "Gaia Data Release 3. Summary of the content and survey properties". Astronomy & Astrophysics. doi:10.1051/0004-6361/202243940 Gaia DR3 record for this source at VizieR.
↑ ^3.0 ^3.1 Abt, Helmut A.; Morrell, Nidia I. (1995). "The Relation between Rotational Velocities and Spectral Peculiarities among A-Type Stars". Astrophysical Journal Supplement 99: 135. doi:10.1086/192182. Bibcode: 1995ApJS...99..135A.
↑ ^4.0 ^4.1 Mallama, A. (2014). "Sloan Magnitudes for the Brightest Stars". The Journal of the American Association of Variable Star Observers 42 (2): 443. Bibcode: 2014JAVSO..42..443M. Vizier catalog entry
↑ Wilson, R. E. (1953). "General Catalogue of Stellar Radial Velocities". Carnegie Institute Washington D.C. Publication (Carnegie Institution for Science). ISBN 9780598216885. Bibcode: 1953GCRV..C......0W.
↑ ^6.0 ^6.1 Gutmann, F. (1965). "A study of the spectroscopic binary 3nu Ophiuchi (HD 148367)". Publications of the Dominion Astrophysical Observatory Victoria 12: 391–399. Bibcode: 1965PDAO...12..391G.
↑ ^7.0 ^7.1 "Sixth Catalog of Orbits of Visual Binary Stars". United States Naval Observatory. http://www.usno.navy.mil/USNO/astrometry/optical-IR-prod/wds/orb6.
↑ ^8.00 ^8.01 ^8.02 ^8.03 ^8.04 ^8.05 ^8.06 ^8.07 ^8.08 ^8.09 ^8.10 ^8.11 ^8.12 ^8.13 ^8.14 Waisberg, Idel; Klein, Ygal; Katz, Boaz (2025-01-01). "Hidden Companions to Intermediate-mass Stars. Upgraded Multiplicity 3 → 4. XXIV. Discovery of a 0.70 M⊙, 0.06 au Companion to Upsilon Ophiuchi Ab (Plus Discovery of the υ Oph Mini-cluster)". Research Notes of the American Astronomical Society 9 (1): 1. doi:10.3847/2515-5172/ada35c. ISSN 2515-5172. Bibcode: 2025RNAAS...9....1W.
↑ ^9.0 ^9.1 David, Trevor J.; Hillenbrand, Lynne A. (2015). "The Ages of Early-Type Stars: Strömgren Photometric Methods Calibrated, Validated, Tested, and Applied to Hosts and Prospective Hosts of Directly Imaged Exoplanets". The Astrophysical Journal 804 (2): 146. doi:10.1088/0004-637X/804/2/146. Bibcode: 2015ApJ...804..146D. Vizier catalog entry
↑ Hoffleit, D.; Warren, W. H. (1995). "VizieR Online Data Catalog: Bright Star Catalogue, 5th Revised Ed. (Hoffleit+, 1991)". VizieR On-line Data Catalog: V/50. Originally Published in: 1964BS....C......0H 5050. Bibcode: 1995yCat.5050....0H.
↑ "ups Oph". SIMBAD. Centre de données astronomiques de Strasbourg. http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=ups+Oph.
↑ Schröder, C.; Schmitt, J. H. M. M. (November 2007), "X-ray emission from A-type stars", Astronomy and Astrophysics 475 (2): 677–684, doi:10.1051/0004-6361:20077429, Bibcode: 2007A&A...475..677S
↑ Kharchenko, N. V. (2001). "All-sky compiled catalogue of 2.5 million stars". Kinematika I Fizika Nebesnykh Tel 17 (5): 409. Bibcode: 2001KFNT...17..409K.

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[radius-9] 1.0 ^1.1 ^1.2 ^1.3 Calculated using angular diameters (0.37, 0.33, 0.20 and 0.16 milliarcseconds) and a distance of 39.9 parsecs via the equation R/R_☉ = (107.5
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Slovene pronunciation: [{{{1}}}]Thai pronunciation: [{{{1}}}]Neukirch, Jürgen; Schmidt, Alexander; Wingberg, Kay (2000), Cohomology of Number Fields, Grundlehren der Mathematischen Wissenschaften, 323, Berlin: Springer-Verlag, ISBN 978-3-540-66671-4 Template:ScribuntoPersian pronunciation: [{{{1}}}]{| class="wikitable" width="100%"
! rowspan="3" colspan="2" width="14%" style="border-bottom:2px solid grey;" | Date/Time (UTC) ! Configuration ! Serial number ! Launch site ! Outcome |-
|style="text-align:center;background-color:#e3e9e9;" | Payload |style="text-align:center;background-color:#e3e9e9;" | Separation orbit |style="text-align:center;background-color:#e3e9e9;" | Operator |style="text-align:center;background-color:#e3e9e9;" | Function |- | colspan="4" style="text-align:center;background-color:#e4dfdf;border-bottom:2px solid grey;" | Remarks |-
Parameter 1=time required!

Documentation[view] [edit] [history] [purge]

This template does not display in the mobile view of Wikipedia; it is desktop only. See Template:Navbox visibility for a brief explanation.

This is a navigational template created using {{navbox}}. It can be transcluded on pages by placing {{Upsilon Ophiuchi}} below the standard article appendices.

Initial visibility

This template's initial visibility currently defaults to autocollapse, meaning that if there is another collapsible item on the page (a navbox, sidebar, or table with the collapsible attribute), it is hidden apart from its title bar; if not, it is fully visible.
To change this template's initial visibility, the |state= parameter may be used:

{{Upsilon Ophiuchi|state=collapsed}} will show the template collapsed, i.e. hidden apart from its title bar.

{{Upsilon Ophiuchi|state=expanded}} will show the template expanded, i.e. fully visible.

Templates using the classes class=navbox ({{navbox}}) or class=nomobile ({{sidebar}}) are not displayed in article space on the mobile web site of English Wikipedia. Mobile page views accounted for 60% to 70% of all page views from 2020 through 2025. Briefly, these templates are not included in articles because 1) they are not well designed for mobile, and 2) they significantly increase page sizes—bad for mobile downloads—in a way that is not useful for the mobile use case. You can review/watch phab:T124168 for further discussion.

TemplateData

A navigational box that can be placed at the bottom of articles.
Template parameters[Edit template data]
Parameter Description Type Status
State state
The initial visibility of the navbox
Suggested values
collapsed expanded autocollapse
String suggested

Template transclusions

Transclusion maintenance

Check completeness of transclusions

The above documentation is transcluded from Template:Navbox documentation. (edit | history)
Hawaiian pronunciation: [{{{1}}}]German pronunciation: [{{{1}}}]Dutch pronunciation: [{{{1}}}]Belarusian pronunciation: [{{{1}}}]Catalan pronunciation: [{{{1}}}]{{{1}}}Mongolian pronunciation: [{{{1}}}]Javanese pronunciation: [{{{1}}}]N Not doneLatin pronunciation: [{{{1}}}]
| rowspan="1" colspan="2" style="border-top:2px solid #aabbcc;" |
| style="border-top:2px solid #aabbcc;" | | style="border-top:2px solid #aabbcc;" | | style="border-top:2px solid #aabbcc;" | | style="border-top:2px solid #aabbcc;" |
|-
|-
Vietnamese pronunciation: [{{{1}}}]
Life timeline
This box: view · talk · edit
-4500 —
–
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-2500 —
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–
0 —
white;">water
Single-celled
life
green;">photosynthesis
Eukaryotes
Multicellular
life
white;">Arthropods white;">Molluscs</span>]]
white;">Plants
Dinosaurs
Mammals
Flowers
Birds
Primates

←

Earth (−4540)

←

Earliest water

←

Earliest life

←

Earliest oxygen

←

Atmospheric oxygen

←

Oxygen crisis

←

Sexual reproduction

←

Earliest plants

←

Ediacara biota

←

Cambrian explosion

←

Tetrapoda

←

Earliest apes

P
h
a
n
e
r
o
z
o
i
c

P
r
o
t
e
r
o
z
o
i
c

A
r
c
h
e
a
n

H
a
d
e
a
n

black;">Pongola

black;">Huronian

black;">Cryogenian

black;">Andean

black;">Karoo

black;">Quaternary

black;">Ice Ages

Clickable
(million years ago)

(See also: Human timeline, and Nature timeline.)
Piedmontese pronunciation: [{{{1}}}]Slovak pronunciation: [{{{1}}}]text-align: auto;Expression error: Unrecognized punctuation character "{"./Expression error: Unrecognized punctuation character "{". (age Expression error: Unrecognized punctuation character "{".–Expression error: Unrecognized punctuation character "{".)Occitan pronunciation: [{{{1}}}]data-sort-value="" style="background: #ececec; color: #2C2C2C; vertical-align: middle; font-size: smaller; text-align: center; " class="table-na" | VariesHejazi pronunciation: [{{{1}}}]Spanish pronunciation: [{{{1}}}]Portuguese pronunciation: [{{{1}}}]Irish pronunciation: [{{{1}}}]Mayan pronunciation: [{{{1}}}]Nahuatl pronunciation: [{{{1}}}]Kyrgyz pronunciation: [{{{1}}}]Scottish Gaelic pronunciation: [{{{1}}}]Ukrainian pronunciation: [{{{1}}}]Burmese pronunciation: [{{{1}}}]Hindi pronunciation: [{{{1}}}]Y Done To doRussian pronunciation: [{{{1}}}]Greek pronunciation: [{{{1}}}]YDanish pronunciation: [{{{1}}}]Northern Sami pronunciation: [{{{1}}}]Mandarin pronunciation: [{{{ipa}}}]Cantonese pronunciation: [{{{1}}}]Entry from Upsilon Ophiuchi from TCI Europe, retrieved on {{{Date}}}

Documentation[view] [edit] [history] [purge]

This template does not display in the mobile view of Wikipedia; it is desktop only. See Template:Navbox visibility for a brief explanation.

This is a navigational template created using {{navbox}}. It can be transcluded on pages by placing {{Upsilon Ophiuchi}} below the standard article appendices.

Initial visibility

This template's initial visibility currently defaults to autocollapse, meaning that if there is another collapsible item on the page (a navbox, sidebar, or table with the collapsible attribute), it is hidden apart from its title bar; if not, it is fully visible.
To change this template's initial visibility, the |state= parameter may be used:

{{Upsilon Ophiuchi|state=collapsed}} will show the template collapsed, i.e. hidden apart from its title bar.

{{Upsilon Ophiuchi|state=expanded}} will show the template expanded, i.e. fully visible.

Templates using the classes class=navbox ({{navbox}}) or class=nomobile ({{sidebar}}) are not displayed in article space on the mobile web site of English Wikipedia. Mobile page views accounted for 60% to 70% of all page views from 2020 through 2025. Briefly, these templates are not included in articles because 1) they are not well designed for mobile, and 2) they significantly increase page sizes—bad for mobile downloads—in a way that is not useful for the mobile use case. You can review/watch phab:T124168 for further discussion.

TemplateData

A navigational box that can be placed at the bottom of articles.
Template parameters[Edit template data]
Parameter Description Type Status
State state
The initial visibility of the navbox
Suggested values
collapsed expanded autocollapse
String suggested

The above documentation is transcluded from Template:Navbox documentation. (edit | history)
Chambers, Robert; Thomson, Thomas Napier (1857). "[[s:A biographical dictionary of eminent Scotsmen/|]]". A Biographical Dictionary of Eminent Scotsmen. Glasgow: Blackie and Son. {{{1}}}Polish pronunciation: [{{{1}}}]Malagasy pronunciation: [{{{1}}}]Japanese pronunciation: [{{{1}}}]Armenian pronunciation: [{{{1}}}]Czech pronunciation: [{{{1}}}]∶Manx pronunciation: [{{{1}}}]http://www.iucnredlist.org/apps/redlist/details/full/{{{1}}}/0 Alemannic German pronunciation: [{{{1}}}]Tagalog pronunciation: [{{{1}}}]Egyptian Arabic pronunciation: [{{{1}}}]French pronunciation: [{{{1}}}]Error: Invalid time. In progressPalomares, M. L. D. and Pauly, D., eds. (2011). "{{{1}}} {{{2}}}" in SeaLifeBase. April 2011 version.Turkish pronunciation: [{{{1}}}]Finnish pronunciation: [{{{1}}}]Froese, Rainer and Pauly, Daniel, eds. (2006). "{{{1}}} {{{2}}}" in FishBase. April 2006 version.
|- | ... | — | — | — | — | — | —
|-Old Norse pronunciation: [{{{1}}}]Salish pronunciation: [{{{1}}}]Basque pronunciation: [{{{1}}}]{{{1}}}data-sort-value="" style="background: #ececec; color: #2C2C2C; vertical-align: middle; font-size: smaller; text-align: center; " class="table-na" | UnreleasedNorwegian pronunciation: [{{{1}}}]Expression error: Unrecognized punctuation character "{"., {{{year}}} (aged {{{4}}})Hungarian pronunciation: [{{{1}}}]Quechua pronunciation: [{{{1}}}]Arabic pronunciation: [{{{1}}}]Punjabi pronunciation: [{{{1}}}]Afrikaans pronunciation: [{{{1}}}]Romanian pronunciation: [{{{1}}}]Hebrew pronunciation: [{{{1}}}][INVALID OR MISSING PARAMETER IN TEMPLATE Upsilon Ophiuchi]Uto-Aztecan pronunciation: [{{{1}}}]Tamil pronunciation: [{{{1}}}]Hindustani pronunciation: [{{{1}}}]Swedish pronunciation: [{{{1}}}]Kazakh pronunciation: [{{{1}}}]
v
t
e
Microsoft security products
Numbers in brackets are the years of the initial release of the product.
For Windows

Windows Firewall [2001]

Baseline Security Analyzer [2004]

Malicious Software Removal Tool [2005]

Windows Defender [2006]

Microsoft SmartScreen [2006]

Microsoft Security Essentials [2009]

Microsoft Safety Scanner [2011]

For Windows Server

Exchange Online Protection [2007]

System Center Data Protection Manager [2007]

Identity Manager [2010]

Discontinued

MSAV [1993]

Threat Management Gateway [1997]

OneCare Safety Scanner [2006]

Unified Access Gateway [2007]

Windows Live OneCare [2006]

RootkitRevealer [2006]

Enhanced Mitigation Experience Toolkit [2009]

Related topics

Data Execution Prevention

Kernel Patch Protection

Mandatory Integrity Control

MS Antivirus (malware)

User Account Control

Lao pronunciation: [{{{1}}}]Tibetan pronunciation: [{{{1}}}]Khmer pronunciation: [{{{1}}}]data-sort-value="" style="vertical-align:middle; text-align:center" class="table-na" | —{{{1}}}Welsh pronunciation: [{{{1}}}] Partially doneAthabaskan pronunciation: [{{{1}}}]Māori pronunciation: [{{{1}}}]IPA: [{{{1}}}]Bulgarian pronunciation: [{{{1}}}]Korean pronunciation: [{{{1}}}]Icelandic pronunciation: [{{{1}}}]Sanskrit pronunciation: [{{{1}}}]Bengali pronunciation: [{{{1}}}]Indonesian pronunciation: [{{{1}}}]Serbo-Croatian pronunciation: [{{{1}}}]CROSBI {{{1}}}θ
This page may be too long to read and navigate comfortably. Please consider splitting content into sub-articles, condensing it, or adding subheadings.
Slovene pronunciation: [{{{1}}}]Thai pronunciation: [{{{1}}}]Neukirch, Jürgen; Schmidt, Alexander; Wingberg, Kay (2000), Cohomology of Number Fields, Grundlehren der Mathematischen Wissenschaften, 323, Berlin: Springer-Verlag, ISBN 978-3-540-66671-4 Template:ScribuntoPersian pronunciation: [{{{1}}}]{| class="wikitable" width="100%"
! rowspan="3" colspan="2" width="14%" style="border-bottom:2px solid grey;" | Date/Time (UTC) ! Configuration ! Serial number ! Launch site ! Outcome |-
|style="text-align:center;background-color:#e3e9e9;" | Payload |style="text-align:center;background-color:#e3e9e9;" | Separation orbit |style="text-align:center;background-color:#e3e9e9;" | Operator |style="text-align:center;background-color:#e3e9e9;" | Function |- | colspan="4" style="text-align:center;background-color:#e4dfdf;border-bottom:2px solid grey;" | Remarks |-
Parameter 1=time required!

Documentation[view] [edit] [history] [purge]

This template does not display in the mobile view of Wikipedia; it is desktop only. See Template:Navbox visibility for a brief explanation.

This is a navigational template created using {{navbox}}. It can be transcluded on pages by placing {{Upsilon Ophiuchi}} below the standard article appendices.

Initial visibility

This template's initial visibility currently defaults to autocollapse, meaning that if there is another collapsible item on the page (a navbox, sidebar, or table with the collapsible attribute), it is hidden apart from its title bar; if not, it is fully visible.
To change this template's initial visibility, the |state= parameter may be used:

{{Upsilon Ophiuchi|state=collapsed}} will show the template collapsed, i.e. hidden apart from its title bar.

{{Upsilon Ophiuchi|state=expanded}} will show the template expanded, i.e. fully visible.

Templates using the classes class=navbox ({{navbox}}) or class=nomobile ({{sidebar}}) are not displayed in article space on the mobile web site of English Wikipedia. Mobile page views accounted for 60% to 70% of all page views from 2020 through 2025. Briefly, these templates are not included in articles because 1) they are not well designed for mobile, and 2) they significantly increase page sizes—bad for mobile downloads—in a way that is not useful for the mobile use case. You can review/watch phab:T124168 for further discussion.

TemplateData

A navigational box that can be placed at the bottom of articles.
Template parameters[Edit template data]
Parameter Description Type Status
State state
The initial visibility of the navbox
Suggested values
collapsed expanded autocollapse
String suggested

Template transclusions

Transclusion maintenance

Check completeness of transclusions

The above documentation is transcluded from Template:Navbox documentation. (edit | history)
Hawaiian pronunciation: [{{{1}}}]German pronunciation: [{{{1}}}]Dutch pronunciation: [{{{1}}}]Belarusian pronunciation: [{{{1}}}]Catalan pronunciation: [{{{1}}}]{{{1}}}Mongolian pronunciation: [{{{1}}}]Javanese pronunciation: [{{{1}}}]N Not doneLatin pronunciation: [{{{1}}}]
| rowspan="1" colspan="2" style="border-top:2px solid #aabbcc;" |
| style="border-top:2px solid #aabbcc;" | | style="border-top:2px solid #aabbcc;" | | style="border-top:2px solid #aabbcc;" | | style="border-top:2px solid #aabbcc;" |
|-
|-
Vietnamese pronunciation: [{{{1}}}]
Life timeline
This box: view · talk · edit
-4500 —
–
-4000 —
–
-3500 —
–
-3000 —
–
-2500 —
–
-2000 —
–
-1500 —
–
-1000 —
–
-500 —
–
0 —
white;">water
Single-celled
life
green;">photosynthesis
Eukaryotes
Multicellular
life
white;">Arthropods white;">Molluscs</span>]]
white;">Plants
Dinosaurs
Mammals
Flowers
Birds
Primates

←

Earth (−4540)

←

Earliest water

←

Earliest life

←

Earliest oxygen

←

Atmospheric oxygen

←

Oxygen crisis

←

Sexual reproduction

←

Earliest plants

←

Ediacara biota

←

Cambrian explosion

←

Tetrapoda

←

Earliest apes

P
h
a
n
e
r
o
z
o
i
c

P
r
o
t
e
r
o
z
o
i
c

A
r
c
h
e
a
n

H
a
d
e
a
n

black;">Pongola

black;">Huronian

black;">Cryogenian

black;">Andean

black;">Karoo

black;">Quaternary

black;">Ice Ages

Clickable
(million years ago)

(See also: Human timeline, and Nature timeline.)
Piedmontese pronunciation: [{{{1}}}]Slovak pronunciation: [{{{1}}}]text-align: auto;Expression error: Unrecognized punctuation character "{"./Expression error: Unrecognized punctuation character "{". (age Expression error: Unrecognized punctuation character "{".–Expression error: Unrecognized punctuation character "{".)Occitan pronunciation: [{{{1}}}]data-sort-value="" style="background: #ececec; color: #2C2C2C; vertical-align: middle; font-size: smaller; text-align: center; " class="table-na" | VariesHejazi pronunciation: [{{{1}}}]Spanish pronunciation: [{{{1}}}]Portuguese pronunciation: [{{{1}}}]Irish pronunciation: [{{{1}}}]Mayan pronunciation: [{{{1}}}]Nahuatl pronunciation: [{{{1}}}]Kyrgyz pronunciation: [{{{1}}}]Scottish Gaelic pronunciation: [{{{1}}}]Ukrainian pronunciation: [{{{1}}}]Burmese pronunciation: [{{{1}}}]Hindi pronunciation: [{{{1}}}]Y Done To doRussian pronunciation: [{{{1}}}]Greek pronunciation: [{{{1}}}]YDanish pronunciation: [{{{1}}}]Northern Sami pronunciation: [{{{1}}}]Mandarin pronunciation: [{{{ipa}}}]Cantonese pronunciation: [{{{1}}}]Entry from Upsilon Ophiuchi from TCI Europe, retrieved on {{{Date}}}

Documentation[view] [edit] [history] [purge]

This template does not display in the mobile view of Wikipedia; it is desktop only. See Template:Navbox visibility for a brief explanation.

This is a navigational template created using {{navbox}}. It can be transcluded on pages by placing {{Upsilon Ophiuchi}} below the standard article appendices.

Initial visibility

This template's initial visibility currently defaults to autocollapse, meaning that if there is another collapsible item on the page (a navbox, sidebar, or table with the collapsible attribute), it is hidden apart from its title bar; if not, it is fully visible.
To change this template's initial visibility, the |state= parameter may be used:

{{Upsilon Ophiuchi|state=collapsed}} will show the template collapsed, i.e. hidden apart from its title bar.

{{Upsilon Ophiuchi|state=expanded}} will show the template expanded, i.e. fully visible.

Templates using the classes class=navbox ({{navbox}}) or class=nomobile ({{sidebar}}) are not displayed in article space on the mobile web site of English Wikipedia. Mobile page views accounted for 60% to 70% of all page views from 2020 through 2025. Briefly, these templates are not included in articles because 1) they are not well designed for mobile, and 2) they significantly increase page sizes—bad for mobile downloads—in a way that is not useful for the mobile use case. You can review/watch phab:T124168 for further discussion.

TemplateData

A navigational box that can be placed at the bottom of articles.
Template parameters[Edit template data]
Parameter Description Type Status
State state
The initial visibility of the navbox
Suggested values
collapsed expanded autocollapse
String suggested

The above documentation is transcluded from Template:Navbox documentation. (edit | history)
Chambers, Robert; Thomson, Thomas Napier (1857). "[[s:A biographical dictionary of eminent Scotsmen/|]]". A Biographical Dictionary of Eminent Scotsmen. Glasgow: Blackie and Son. {{{1}}}Polish pronunciation: [{{{1}}}]Malagasy pronunciation: [{{{1}}}]Japanese pronunciation: [{{{1}}}]Armenian pronunciation: [{{{1}}}]Czech pronunciation: [{{{1}}}]∶Manx pronunciation: [{{{1}}}]http://www.iucnredlist.org/apps/redlist/details/full/{{{1}}}/0 Alemannic German pronunciation: [{{{1}}}]Tagalog pronunciation: [{{{1}}}]Egyptian Arabic pronunciation: [{{{1}}}]French pronunciation: [{{{1}}}]Error: Invalid time. In progressPalomares, M. L. D. and Pauly, D., eds. (2011). "{{{1}}} {{{2}}}" in SeaLifeBase. April 2011 version.Turkish pronunciation: [{{{1}}}]Finnish pronunciation: [{{{1}}}]Froese, Rainer and Pauly, Daniel, eds. (2006). "{{{1}}} {{{2}}}" in FishBase. April 2006 version.
|- | ... | — | — | — | — | — | —
|-Old Norse pronunciation: [{{{1}}}]Salish pronunciation: [{{{1}}}]Basque pronunciation: [{{{1}}}]{{{1}}}data-sort-value="" style="background: #ececec; color: #2C2C2C; vertical-align: middle; font-size: smaller; text-align: center; " class="table-na" | UnreleasedNorwegian pronunciation: [{{{1}}}]Expression error: Unrecognized punctuation character "{"., {{{year}}} (aged {{{4}}})Hungarian pronunciation: [{{{1}}}]Quechua pronunciation: [{{{1}}}]Arabic pronunciation: [{{{1}}}]Punjabi pronunciation: [{{{1}}}]Afrikaans pronunciation: [{{{1}}}]Romanian pronunciation: [{{{1}}}]Hebrew pronunciation: [{{{1}}}][INVALID OR MISSING PARAMETER IN TEMPLATE Upsilon Ophiuchi]Uto-Aztecan pronunciation: [{{{1}}}]Tamil pronunciation: [{{{1}}}]Hindustani pronunciation: [{{{1}}}]Swedish pronunciation: [{{{1}}}]Kazakh pronunciation: [{{{1}}}]
v
t
e
Microsoft security products
Numbers in brackets are the years of the initial release of the product.
For Windows

Windows Firewall [2001]

Baseline Security Analyzer [2004]

Malicious Software Removal Tool [2005]

Windows Defender [2006]

Microsoft SmartScreen [2006]

Microsoft Security Essentials [2009]

Microsoft Safety Scanner [2011]

For Windows Server

Exchange Online Protection [2007]

System Center Data Protection Manager [2007]

Identity Manager [2010]

Discontinued

MSAV [1993]

Threat Management Gateway [1997]

OneCare Safety Scanner [2006]

Unified Access Gateway [2007]

Windows Live OneCare [2006]

RootkitRevealer [2006]

Enhanced Mitigation Experience Toolkit [2009]

Related topics

Data Execution Prevention

Kernel Patch Protection

Mandatory Integrity Control

MS Antivirus (malware)

User Account Control

Lao pronunciation: [{{{1}}}]Tibetan pronunciation: [{{{1}}}]Khmer pronunciation: [{{{1}}}]data-sort-value="" style="vertical-align:middle; text-align:center" class="table-na" | —{{{1}}}Welsh pronunciation: [{{{1}}}] Partially doneAthabaskan pronunciation: [{{{1}}}]Māori pronunciation: [{{{1}}}]IPA: [{{{1}}}]Bulgarian pronunciation: [{{{1}}}]Korean pronunciation: [{{{1}}}]Icelandic pronunciation: [{{{1}}}]Sanskrit pronunciation: [{{{1}}}]Bengali pronunciation: [{{{1}}}]Indonesian pronunciation: [{{{1}}}]Serbo-Croatian pronunciation: [{{{1}}}]CROSBI {{{1}}}d)/1000, where θ is the angular diameter and d is the distance.

[2] {{Upsilon Ophiuchi|state=collapsed}} will show the template collapsed, i.e. hidden apart from its title bar.

[3] {{Upsilon Ophiuchi|state=expanded}} will show the template expanded, i.e. fully visible.

[4] {{Upsilon Ophiuchi|state=collapsed}} will show the template collapsed, i.e. hidden apart from its title bar.

[5] {{Upsilon Ophiuchi|state=expanded}} will show the template expanded, i.e. fully visible.

[6] v

[7] t

[8] e

[9] Windows Firewall [2001]

[10] Baseline Security Analyzer [2004]

[11] Malicious Software Removal Tool [2005]

[12] Windows Defender [2006]

[13] Microsoft SmartScreen [2006]

[14] Microsoft Security Essentials [2009]

[15] Microsoft Safety Scanner [2011]

[16] Exchange Online Protection [2007]

[17] System Center Data Protection Manager [2007]

[18] Identity Manager [2010]

[19] MSAV [1993]

[20] Threat Management Gateway [1997]

[21] OneCare Safety Scanner [2006]

[22] Unified Access Gateway [2007]

[23] Windows Live OneCare [2006]

[24] RootkitRevealer [2006]

[25] Enhanced Mitigation Experience Toolkit [2009]

[26] Data Execution Prevention

[27] Kernel Patch Protection

[28] Mandatory Integrity Control

[29] MS Antivirus (malware)

[30] User Account Control

[31] {{Upsilon Ophiuchi|state=collapsed}} will show the template collapsed, i.e. hidden apart from its title bar.

[32] {{Upsilon Ophiuchi|state=expanded}} will show the template expanded, i.e. fully visible.

[33] {{Upsilon Ophiuchi|state=collapsed}} will show the template collapsed, i.e. hidden apart from its title bar.

[34] {{Upsilon Ophiuchi|state=expanded}} will show the template expanded, i.e. fully visible.

[35] v

[36] t

[37] e

[38] Windows Firewall [2001]

[39] Baseline Security Analyzer [2004]

[40] Malicious Software Removal Tool [2005]

[41] Windows Defender [2006]

[42] Microsoft SmartScreen [2006]

[43] Microsoft Security Essentials [2009]

[44] Microsoft Safety Scanner [2011]

[45] Exchange Online Protection [2007]

[46] System Center Data Protection Manager [2007]

[47] Identity Manager [2010]

[48] MSAV [1993]

[49] Threat Management Gateway [1997]

[50] OneCare Safety Scanner [2006]

[51] Unified Access Gateway [2007]

[52] Windows Live OneCare [2006]

[53] RootkitRevealer [2006]

[54] Enhanced Mitigation Experience Toolkit [2009]

[55] Data Execution Prevention

[56] Kernel Patch Protection

[57] Mandatory Integrity Control

[58] MS Antivirus (malware)

[59] User Account Control

[XHIP-1] 1.0 ^1.1 ^1.2 ^1.3 ^1.4 Anderson, E.; Francis, Ch. (2012). "XHIP: An extended hipparcos compilation". Astronomy Letters 38 (5): 331. doi:10.1134/S1063773712050015. Bibcode: 2012AstL...38..331A. Vizier catalog entry

[dr3-2] 2.0 ^2.1 ^2.2 ^2.3 ^2.4 Vallenari, A. et al. (2022). "Gaia Data Release 3. Summary of the content and survey properties". Astronomy & Astrophysics. doi:10.1051/0004-6361/202243940 Gaia DR3 record for this source at VizieR.

[abt1995-3] 3.0 ^3.1 Abt, Helmut A.; Morrell, Nidia I. (1995). "The Relation between Rotational Velocities and Spectral Peculiarities among A-Type Stars". Astrophysical Journal Supplement 99: 135. doi:10.1086/192182. Bibcode: 1995ApJS...99..135A.

[Mallama2014-4] 4.0 ^4.1 Mallama, A. (2014). "Sloan Magnitudes for the Brightest Stars". The Journal of the American Association of Variable Star Observers 42 (2): 443. Bibcode: 2014JAVSO..42..443M. Vizier catalog entry

[Wilson1953-5] Wilson, R. E. (1953). "General Catalogue of Stellar Radial Velocities". Carnegie Institute Washington D.C. Publication (Carnegie Institution for Science). ISBN 9780598216885. Bibcode: 1953GCRV..C......0W.

[Gutman1965-6] 6.0 ^6.1 Gutmann, F. (1965). "A study of the spectroscopic binary 3nu Ophiuchi (HD 148367)". Publications of the Dominion Astrophysical Observatory Victoria 12: 391–399. Bibcode: 1965PDAO...12..391G.

[ORB6-7] 7.0 ^7.1 "Sixth Catalog of Orbits of Visual Binary Stars". United States Naval Observatory. http://www.usno.navy.mil/USNO/astrometry/optical-IR-prod/wds/orb6.

[Waisberg2025-8] 8.00 ^8.01 ^8.02 ^8.03 ^8.04 ^8.05 ^8.06 ^8.07 ^8.08 ^8.09 ^8.10 ^8.11 ^8.12 ^8.13 ^8.14 Waisberg, Idel; Klein, Ygal; Katz, Boaz (2025-01-01). "Hidden Companions to Intermediate-mass Stars. Upgraded Multiplicity 3 → 4. XXIV. Discovery of a 0.70 M⊙, 0.06 au Companion to Upsilon Ophiuchi Ab (Plus Discovery of the υ Oph Mini-cluster)". Research Notes of the American Astronomical Society 9 (1): 1. doi:10.3847/2515-5172/ada35c. ISSN 2515-5172. Bibcode: 2025RNAAS...9....1W.

[David2015-10] 9.0 ^9.1 David, Trevor J.; Hillenbrand, Lynne A. (2015). "The Ages of Early-Type Stars: Strömgren Photometric Methods Calibrated, Validated, Tested, and Applied to Hosts and Prospective Hosts of Directly Imaged Exoplanets". The Astrophysical Journal 804 (2): 146. doi:10.1088/0004-637X/804/2/146. Bibcode: 2015ApJ...804..146D. Vizier catalog entry

[Hoffleit1991-11] Hoffleit, D.; Warren, W. H. (1995). "VizieR Online Data Catalog: Bright Star Catalogue, 5th Revised Ed. (Hoffleit+, 1991)". VizieR On-line Data Catalog: V/50. Originally Published in: 1964BS....C......0H 5050. Bibcode: 1995yCat.5050....0H.

[SIMBAD-12] "ups Oph". SIMBAD. Centre de données astronomiques de Strasbourg. http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=ups+Oph.

[Schröder2007-13] Schröder, C.; Schmitt, J. H. M. M. (November 2007), "X-ray emission from A-type stars", Astronomy and Astrophysics 475 (2): 677–684, doi:10.1051/0004-6361:20077429, Bibcode: 2007A&A...475..677S

[ascc-14] Kharchenko, N. V. (2001). "All-sky compiled catalogue of 2.5 million stars". Kinematika I Fizika Nebesnykh Tel 17 (5): 409. Bibcode: 2001KFNT...17..409K.

[1]

[2]

[3]

[4]

[5]

[6]

[7]

[8]

[lower-alpha 1]

[9]

[10]

[11]

[12]

[13]

Observation data Equinox J2000.0]] (ICRS)
Location of υ Ophiuchi (circled)
Constellation	Ophiuchus^[1]
Right ascension	16^h 27^m 48.17331^s^[2]
Declination	−08° 22′ 18.4156″^[2]
Apparent magnitude (V)	4.62^[1]
Characteristics
Spectral type	kA2hA5VmA5^[3]
U−B color index	+0.06^[4]
B−V color index	+0.16^[4]
Astrometry

Radial velocity (R_v)	−30.60^[5] km/s
Proper motion (μ)	RA: −97.526^[2] mas/yr Dec.: −33.97^[2] mas/yr
Parallax (π)	25.0819 ± 0.2300^[2] mas
Distance	130 ± 1 ly (39.9 ± 0.4 pc)
Absolute magnitude (M_V)	1.75^[1]

Orbit^[6]
Primary	Aa1
Companion	Aa2
Period (P)	27.218±0.0005 d
Semi-major axis (a)	≥ 0.0583 astronomical unit\|AU
Eccentricity (e)	0.744±0.002
Periastron epoch (T)	2,438,914.84±0.01 JD
Argument of periastron (ω) (secondary)	333.7±0.7°
Semi-amplitude (K₁) (primary)	34.9±0.3 km/s
Semi-amplitude (K₂) (secondary)	41.1±0.3 km/s
Orbit^[7]
Primary	Aa
Companion	Ab
Period (P)	82.8±1.4 yr
Semi-major axis (a)	0.79±0.03″
Eccentricity (e)	0.45±0.03
Inclination (i)	31.2±5.7°
Longitude of the node (Ω)	86.8±6.9°
Periastron epoch (T)	B 1994.1±1.0
Argument of periastron (ω) (secondary)	177.9±7.4°
Details
Aa1
Mass	1.83^[8] `M`_☉
Radius	1.6^[8]^{[lower-alpha 1]} `R`_☉
Luminosity	16.56^[1] `L`_☉
Surface gravity (log g)	4.45^[9] cgs
Temperature	8,364^[9] K
Metallicity [Fe/H]	+0.14^[1] dex
Rotational velocity (v sin i)	44^[10] km/s
Age	50^[8] Myr
Aa2
Mass	1.47^[8] `M`_☉
Radius	1.4^[8]^{[lower-alpha 1]} `R`_☉
Age	50^[8] Myr

Ab1
Mass	0.82^[8] `M`_☉
Radius	0.86^[8]^{[lower-alpha 1]} `R`_☉
Age	45^[8] Myr
Ab2
Mass	0.70^[8] `M`_☉
Radius	0.69^[8]^{[lower-alpha 1]} `R`_☉
Age	45^[8] Myr
Other designations
Alkarab, υ Oph, 3 Ophiuchi, BD−08°4243, FK5 3299, GC 22134, HD 148367, HIP 80628, HR 6129, SAO 141187, CCDM J16278-0822AB, WDS J16278-0822^[11]
Database references
SIMBAD	data

v t e Stars of Ophiuchus
Bayer	α (Rasalhague) β (Cebalrai) γ δ (Yed Prior) ε (Yed Posterior) ζ (Han) η (Sabik) θ ι κ λ (Marfik) μ ν ξ ο ρ σ τ υ φ χ ψ ω
Flamsteed	12 14 15 16 18 19 20 21 23 24 26 28 29 30 31 36 (Guniibuu) 37 38 41 43 44 45 50 51 52 53 54 58 61 66 67 68 70 71 72 73 74 24 Sco
Variable	U V X Y RS RV RZ ST SW TT TW UU WZ XX BF IX KK V380 V426 V438 V442 V445 V451 V453 V502 V508 V566 V567 V716 V839 V841 V849 V986 V1010 V1054 V2051 V2052 V2076 V2105 V2112 V2113 V2114 V2118 V2126 V2129 V2213 V2214 V2247 V2291 V2292 V2301 V2307 V2324 V2368 V2388 V2393 V2400 V2487 V2502 V2540 V2542
HR	5989 5990 6041 6067 6096 6124 6136 6137 6140 6144 6179 6189 6190 6193 6201 6202 6235 6248 6269 6284 6294 6296 6302 6308 6329 6340 6350 6353 6354 6358 6359 6361 6365 6367 6372 6375 6387 6390 6404 6413 6428 6433 6435 6439 6441 6465 6472 6473 6474 6476 6489 6490 6494 6497 6504 6507 6512 6516 6520 6521 6524 6532 6534 6575 6577 6578 6590 6593 6601 6633 6639 6650 6659 6667 6670 6686 6689 6690 6696 6706 6719 6784 6797 6800 6851 6857 6883 6902 6925 6976 6985 6987 7010
HD	148390 148427 (Timir) 148531 149143 149382 150052 150381 150433 150493 152581 (Mahsati) 154088 156992 157172 160042 160346 164509 167162 170469 171028
Gliese	Gliese 673 GJ 1207
Other	Barnard's Star AS 239 BD -9 4395 COROT-6 DoAr 21 GRO J1719-24 GRS 1739-278 GX 1+4 GX 9+9 H 1705-250 Hen 3-1341 IRAS 16293−2422 K2-32 LS IV -1 2 2MASS J16452211-1319516 MXB 1659-29 Nova Ophiuchi 1993 PG 1627-017 PSR B1929+10 TOI-677 Van Biesbroeck 8 VVV BD001 WISEP J180026.60+013453.1 Wolf 635 Wolf 1061 XTE J1739-285
List

v t e Microsoft security products
Numbers in brackets are the years of the initial release of the product.
For Windows	Windows Firewall [2001] Baseline Security Analyzer [2004] Malicious Software Removal Tool [2005] Windows Defender [2006] Microsoft SmartScreen [2006] Microsoft Security Essentials [2009] Microsoft Safety Scanner [2011]
For Windows Server	Exchange Online Protection [2007] System Center Data Protection Manager [2007] Identity Manager [2010]
Discontinued	MSAV [1993] Threat Management Gateway [1997] OneCare Safety Scanner [2006] Unified Access Gateway [2007] Windows Live OneCare [2006] RootkitRevealer [2006] Enhanced Mitigation Experience Toolkit [2009]
Related topics	Data Execution Prevention Kernel Patch Protection Mandatory Integrity Control MS Antivirus (malware) User Account Control

Upsilon Ophiuchi

Topic: Astronomy

Notes

Initial visibility

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Template transclusions

Initial visibility

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Initial visibility

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Template transclusions

Initial visibility

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References