HD 192699

Yellow subgiant star in the constellation Aquila

HD 192699 / Chechia  Observation data
Epoch J2000 Equinox J2000

Constellation | Aquila
Right ascension | 20h 16m 06.00415s[1]
Declination | +04° 34′ 50.8613″[1]
Apparent magnitude (V) | 6.44[2]
Characteristics
Spectral type | G8 IV[3]
B−V color index | 0.867±0.006[2]
Astrometry
Proper motion (μ)|  RA: −41.239[1] mas/yr
Dec.: −52.035[1] mas/yr
Parallax (π)| 13.8868 ± 0.0513 mas[1]
Distance| 234.9 ± 0.9 ly
(72.0 ± 0.3 pc)
Absolute magnitude (MV)| 2.36[2]
Details[4]
Mass| 1.26±0.19 M☉
Radius| 4.41±0.21 R☉
Luminosity| 12.26[2] L☉
Surface gravity (log g)| 3.25 cgs
Temperature| 5,041 K
Metallicity [Fe/H]| −0.12 dex
Age| 3.2+1.2
−0.7 Gyr
Other designations

Chechia, BD+04° 4395, FK5 3623, HD 192699, HIP 99894, HR 7288, SAO 125628, TYC 504-2358-1, GSC 00504-02358, 2MASS J20160600+0434509[5]

Database references
SIMBAD| data

HD 192699 is a yellow subgiant star located approximately 214 light-years away in the constellation of Aquila. It has the apparent magnitude of 6.45. Based on its mass of 1.68 solar, it was an A-type star when it was a main-sequence. In April 2007, a planet was announced orbiting the star, together with HD 175541 b and HD 210702 b.[6]

The star HD 192699 is named Chechia. The name was selected in the NameExoWorlds campaign by Tunisia, during the 100th anniversary of the IAU. Chechia is a flat-surfaced, traditional red wool hat.[7][8]

The HD 192699 planetary system[9] Companion
(in order from star) | Mass | Semimajor axis
(AU) | Orbital period
(days) | Eccentricity | Inclination | Radius

|
|
|
|
|
|

b / Khomsa | ≥2.096±0.093 MJ | 1.063±0.049 | 340.94±0.92 | 0.082±0.041 | —  | —

## See also[edit]

* HD 175541
* HD 210702
* List of extrasolar planets

## References[edit]

1. ^ a b c d e Brown, A. G. A.; et al. (Gaia collaboration) (August 2018). "Gaia Data Release 2: Summary of the contents and survey properties". Astronomy & Astrophysics. 616. A1. arXiv:1804.09365. Bibcode:2018A&A...616A...1G. doi:10.1051/0004-6361/201833051. Gaia DR2 record for this source at VizieR.
2. ^ a b c d Anderson, E.; Francis, Ch. (2012), "XHIP: An extended hipparcos compilation", Astronomy Letters, 38 (5): 331, arXiv:1108.4971, Bibcode:2012AstL...38..331A, doi:10.1134/S1063773712050015, S2CID 119257644.
3. ^ Houk, N.; Swift, C. (1999), "Michigan catalogue of two-dimensional spectral types for the HD Stars", Michigan Spectral Survey, Ann Arbor, Michigan: Department of Astronomy, University of Michigan, 5, Bibcode:1999MSS...C05....0H
4. ^ Brewer, John M.; et al. (2016), "Spectral Properties of Cool Stars: Extended Abundance Analysis of 1,617 Planet-Search Stars", The Astrophysical Journal Supplement Series, 225 (2): 32, arXiv:1606.07929, Bibcode:2016ApJS..225...32B, doi:10.3847/0067-0049/225/2/32, S2CID 118507965.
5. ^ "HD 192263". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved November 8, 2018.
6. ^ Johnson, John Asher; et al. (2007). "Retired A Stars and Their Companions: Exoplanets Orbiting Three Intermediate-Mass Subgiants". The Astrophysical Journal. 665 (1): 785–793. arXiv:0704.2455. Bibcode:2007ApJ...665..785J. doi:10.1086/519677.
7. ^ "Approved names". NameExoworlds. Retrieved 2020-01-02.
8. ^ "International Astronomical Union | IAU". www.iau.org. Retrieved 2020-01-02.
9. ^ Luhn, Jacob K.; et al. (2019). "Retired A Stars and Their Companions. VIII. 15 New Planetary Signals around Subgiants and Transit Parameters for California Planet Search Planets with Subgiant Hosts". The Astronomical Journal. 157 (4). 149. arXiv:1811.03043. Bibcode:2019AJ....157..149L. doi:10.3847/1538-3881/aaf5d0. S2CID 102486961.

## External links[edit]

* "HIC 99894". webviz.u-strasbg.fr/.
* "New Words Atlas". planetquest1.jpl.nasa.gov. Archived from the original on 2009-04-13.

* v
* t
* e

Constellation of Aquila

* Aquila in Chinese astronomy
* Smith's Cloud
* List of stars in Aquila

Stars|

| Bayer|

* α (Altair)
* β (Alshain)
* γ (Tarazed)
* δ
* ε
* ζ (Okab)
* η
* θ (Tseen Foo)
* ι
* κ
* λ
* μ
* ν
* ξ (Libertas)
* ο
* π
* σ
* τ
* υ
* φ
* χ
* ψ
* ω1
* ω2

|

Flamsteed|

* 4
* 5
* 7
* 8
* 10
* 11
* 12 (i)
* 14 (g)
* 15 (h)
* 18
* 19
* 20
* 21
* 22
* 23
* 24
* 26 (f)
* 27 (d)
* 28 (A)
* 31 (b)
* 35 (c)
* 36 (e)
* 37 (k)
* 42
* 45
* 46
* 51
* 56
* 57
* 58
* 62
* 64
* 66
* 68
* 69
* 70
* 71 (l)

Variable|

* R
* U
* V
* W
* TT
* FF
* QS
* V368
* V450
* V500
* V603
* V604
* V605
* V606
* V923
* V1286
* V1291
* V1298
* V1302
* V1315
* V1333
* V1339
* V1427
* V1428
* V1429
* V1472
* V1487
* V1494
* V1691
* V1703 (Phoenicia)
* V1828
* V1936

HD|

* 174569
* 179079
* 179791
* 180262
* 180555
* 183144
* 183263
* 185018
* 187734
* 187923
* 188385
* 188405
* 190007
* 191104
* 191984
* 192699 (Chechia)
* 194244

Other|

* AFGL 2298
* CoRoT-2
* CoRoT-3
* HAT-P-41
* PSR J1856+0245
* PSR J1903+0327
* PSR B1913+16 (Hulse–Taylor)
* PSR J1951+1123
* SGR 1900+14
* SS 433
* W43A
* W49-2
* WASP-80 (Petra)
* WD J1953−1019
* ZTF J1901+1458

| Exoplanets|

* CoRoT-2b
* CoRoT-3b
* CoRoT-8b
* CoRoT-10b
* HD 179079 b
* HD 183263 b
* c
* HD 192263 b
* HD 192699 b
* ξ Aquilae b

|

| Star clusters|

* NGC 6709
* NGC 6738
* NGC 6755
* NGC 6756
* NGC 6760

|

Nebulae|

| NGC|

* 6741
* 6751
* 6778
* 6781
* 6790

|

Other|

* Abell 48
* Abell 70
* E Nebula
* Hen 2-428
* HESS J1857+026
* W43
* W49
* W49B
* W50

Galaxies|

| NGC|

* 6814

|

Category

This subgiant-star-related article is a stub. You can help Wikipedia by expanding it.

|

* v
* t
* e

*[RA:]: Right Ascension
*[Dec.:]: Declination
*[v]: View this template
*[t]: Discuss this template
*[e]: Edit this template