80 Sappho

Short description: Main-belt asteroid

80 Sappho  (astrological)

Lightcurve-based 3D-model of Sappho

Discovery
Discovered by| N. R. Pogson
Discovery site| Madras Obs.
Discovery date| 2 May 1864
Designations

MPC designation

| (80) Sappho
Pronunciation| /ˈsæfoʊ/[1]
Named after| Sappho (Greek poet)
Minor planet category| main-belt * (inner)
Adjectives| Sapphonian /sæˈfoʊniən/[2]
Sapphoian /sæˈfoʊ.iən/[3]
Orbital characteristics[4]
Epoch 4 September 2017 (JD 2458000.5)
Uncertainty parameter 0
|{{{apsis}}}|helion}}| 2.7544 astronomical unit|AU (412.05 Gm)
|{{{apsis}}}|helion}}| 1.8370 AU (274.81 Gm)

Semi-major axis

| 2.2957 AU (343.43 Gm)
Eccentricity| 0.19980
Orbital period| 3.48 yr (1270.5 d)
Mean anomaly| 287.260°
Mean motion| 0° 17m 0.06s / day
Inclination| 8.676°
Longitude of ascending node| 218.699°

|{{{apsis}}}|helion}}

| 139.662°
Earth MOID| 0.843652 AU (126.2085 Gm)
Jupiter MOID| 2.7319 AU (408.69 Gm)
TJupiter| 3.553
Physical characteristics[4]
Dimensions| 68.563±1.033 km
Rotation period| 14.03087[5] h
Pole ecliptic latitude| 194°[5]
Pole ecliptic longitude| −26°[5]
Geometric albedo| 0.206±0.014[4]
0.185 [6]

Spectral type

| S-type asteroid
Apparent magnitude| 9.38 to 13.6
Absolute magnitude (H)| 7.98

Sappho (minor planet designation: 80 Sappho) is a large, S-type (stony) main-belt asteroid. It was discovered by English astronomer Norman Pogson on May 2, 1864, and is named after Sappho, the Archaic Greece poet. The asteroid is orbiting the Sun at a distance of 2.2957 astronomical unit|AU with a period of 3.48 years and an eccentricity (ovalness) of 0.2. The orbital plane is inclined at an angle of 8.68° to the plane of the ecliptic.[4]

13-cm radar observations of this asteroid from the Arecibo Observatory between 1980 and 1985 were used to produce a diameter estimate of 83 kilometres (52 mi).[7] Hanuš et al. (2013) confirmed the polar axis has ecliptic coordinates (λ, β) = (194°, −26°) and listed a rotation period of 14.03087 h.[5]

Sappho (at apparent magnitude 11.8) occulted the magnitude 7.2 star HIP 24403 in the constellation of Taurus on 16 September 2018 at 8:54 UT.[8][9] Sacramento and Salt Lake City were the two major cities located underneath the shadow path. Data from this event will help improve the shape model of the asteroid. During the occultation the asteroid was roughly 1.6 AU (240,000,000 km; 150,000,000 mi) from Earth with an uncertainty of ±76 km.

## References

1. ↑ Sappho (3rd ed.), Oxford University Press, September 2005, http://oed.com/search?searchType=dictionary&q=Sappho (Subscription or UK public library membership required.)
2. ↑ Catherine Hobbs (1995) Nineteenth-century Women Learn to Write
3. ↑ The Thistle, January 1903, vol. I, no. 2, p. 4
4. ↑ 4.0 4.1 4.2 4.3 "80 Sappho", JPL Small-Body Database Browser (NASA Jet Propulsion Laboratory), https://ssd.jpl.nasa.gov/sbdb.cgi?sstr=80, retrieved 2013-03-30.
5. ↑ 5.0 5.1 5.2 5.3 Hanuš, J. et al. (September 2013), "Sizes of main-belt asteroids by combining shape models and Keck adaptive optics observations", Icarus 226 (1): 1045–1057, doi:10.1016/j.icarus.2013.07.023, Bibcode: 2013Icar..226.1045H.
6. ↑ "Asteroid Data Sets". http://www.psi.edu/pds/resource/albedo.html.
7. ↑ Ostro, S. J. et al. (August 1985), "Mainbelt asteroids - Dual-polarization radar observations", Science 229 (4712): 442–446, doi:10.1126/science.229.4712.442, PMID 17738665, Bibcode: 1985Sci...229..442O.
8. ↑ "Interactive GoogleMap of Shadow Path". http://www.poyntsource.com/New/Google/20180916_56486.HTM.
9. ↑ "(80) Sappho / HIP 24403 event on 2018 Sep 16, 08:54 UT". http://www.asteroidoccultation.com/2018_09/0916_80_56486.htm.

## External links

* Shape model for 80 Sappho
* 80 Sappho at AstDyS-2, Asteroids—Dynamic Site
* Ephemeris * Observation prediction * Orbital info * Proper elements * Observational info
* 80 Sappho at the JPL Small-Body Database
* Close approach * Discovery * Ephemeris * Orbit diagram * Orbital elements * Physical parameters

* v
* t
* e

Small Solar System bodies

Minor planets|

* Designation
* Groups
* List
* Moon
* Meanings of names

Asteroid|

* Aten asteroid
* Asteroid belt
* Family
* Jupiter trojan
* Near-Earth
* Spectral types

Distant minor planet|

* Centaur
* Damocloid
* Neptune trojan
* Trans-Neptunian object
* Detached
* Kuiper belt
* Oort cloud
* Scattered disc

Comets|

* Extinct
* Great
* Halley-type
* Hyperbolic
* Long-period
* Lost
* Main-belt
* Near-parabolic
* Periodic
* Sungrazing

Other|

* Meteoroids

vec:Lista de asteroidi#80 Safo

0.00

(0 votes)

Original source: https://en.wikipedia.org/wiki/80 Sappho. Read more

|

Retrieved from "https://handwiki.org/wiki/index.php?title=Astronomy:80_Sappho&oldid=3356203"
*[v]: View this template
*[t]: Discuss this template
*[e]: Edit this template