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80 Sappho
Main-belt asteroid
Main-belt asteroid
| Field | Value | |
|---|---|---|
| minorplanet | yes | |
| background | #D6D6D6 | |
| name | 80 Sappho | |
| symbol | [[File:Double Venus symbol (bold).svg | 24px]] (astrological) |
| image | 80 Sappho.png | |
| caption | Lightcurve-based 3D-model of Sappho on the top and the image on the bottom. | |
| discoverer | N. R. Pogson | |
| discovery_site | Madras Obs. | |
| discovered | 2 May 1864 | |
| mpc_name | (80) Sappho | |
| pronounced | ||
| adjective | Sapphonian | |
| Sapphoian | ||
| named_after | Sappho (Greek poet) | |
| mp_category | main-belt(inner) | |
| orbit_ref | ||
| uncertainty | 0 | |
| epoch | 4 September 2017 (JD 2458000.5) | |
| aphelion | 2.7544 AU | |
| perihelion | 1.8370 AU | |
| semimajor | 2.2957 AU | |
| eccentricity | 0.19980 | |
| period | 3.48 yr (1270.5 d) | |
| inclination | 8.676° | |
| mean_anomaly | 287.260° | |
| mean_motion | / day | |
| asc_node | 218.699° | |
| arg_peri | 139.662° | |
| moid | 0.843652 AU | |
| jupiter_moid | 2.7319 AU | |
| tisserand | 3.553 | |
| pole_ecliptic_lat | 194° | |
| pole_ecliptic_lon | −26° | |
| physical_ref | ||
| mean_diameter | ||
| mass | (4.6 ± 2.11/0.86) kg | |
| density | 3.055 ± 1.400/0.569 g/cm3 | |
| rotation | 14.03087 h | |
| albedo | ||
| 0.185 | ||
| spectral_type | S-type asteroid | |
| abs_magnitude | 7.98 | |
| magnitude | 9.38 to 13.6 |
Sapphoian 0.185
80 Sappho (symbol: [[File:Double Venus symbol.svg|16x16px]]) is a large, S-type (stony) main-belt asteroid. It was discovered by English astronomer Norman Pogson on 2 May 1864, and is named after Sappho, the Archaic Greece poet. The asteroid is orbiting the Sun at a distance of 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.
13-cm radar observations of this asteroid from the Arecibo Observatory between 1980 and 1985 were used to produce a diameter estimate of 83 km. Hanuš et al. (2013) confirmed the polar axis has ecliptic coordinates (λ, β) = (194°, −26°) and listed a rotation period of 14.03087 h.
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. 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 from Earth with an uncertainty of ±76 km.
Notes
References
vec:Lista de asteroidi#80 Safo
References
- {{OED. Sappho
- Catherine Hobbs (1995) ''Nineteenth-century Women Learn to Write''
- ''The Thistle'', January 1903, vol. I, no. 2, p. 4
- "Asteroid Data Sets".
- "(80) Sappho / HIP 24403 event on 2018 Sep 16, 08:54 UT".
- "Interactive GoogleMap of Shadow Path".
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