26 Proserpina
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Discovery
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| Discovered by | R. Luther |
| Discovery date | May 5, 1853 |
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Designations
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| Named after | Proserpina |
| Alternate name(s) | 1935 KK; 1954 WD1 |
| Minor planet category |
Main belt |
| Epoch June 14, 2006 (JD 2453900.5) | |
| Aphelion | 431.898 Gm (2.887 AU) |
| Perihelion | 362.816 Gm (2.425 AU) |
| Semi-major axis | 397.357 Gm (2.656 AU) |
| Eccentricity | 0.087 |
| Orbital period | 1581.184 d (4.33 a) |
| Average orbital speed | 18.24 km/s |
| Mean anomaly | 115.619° |
| Inclination | 3.562° |
| Longitude of ascending node | 45.884° |
| Argument of perihelion | 193.120° |
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Physical characteristics
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| Dimensions | 94.8 ± 1.7 km (IRAS)[1] |
| Mass | 9.0×1017? kg (assumed) |
| Mean density | 2.0? g/cm³ |
| Equatorial surface gravity | 0.0266? m/s² |
| Escape velocity | 0.0503? km/s |
| Rotation period | 0.13.11 h[1][2] |
| Albedo | 0.1966[1][3] |
| Temperature | ~166 K |
| Spectral type | S[1] |
| Absolute magnitude (H) | 7.5[1] |
26 Proserpina (
/proʊˈsɜrpɨnə/ proh-sur-pi-nə; Latin: Proserpina)[missing vowel length] is a main-belt asteroid.
It was discovered by R. Luther on May 5, 1853.
It is named after the Roman goddess Proserpina, the daughter of Ceres and the Queen of the Underworld.
[edit] References
- ^ a b c d e "JPL Small-Body Database Browser: 26 Proserpina". Jet Propulsion Laboratory. 2011-12-30 last obs. http://ssd.jpl.nasa.gov/sbdb.cgi?sstr=26. Retrieved 2012-01-28.
- ^ http://www.psi.edu/pds/asteroid/EAR_A_5_DDR_DERIVED_LIGHTCURVE_V8_0/data/lc.tab
- ^ http://www.psi.edu/pds/asteroid/EAR_A_5_DDR_ALBEDOS_V1_1/data/albedos.tab
[edit] External links
- Orbital simulation from JPL (Java) / Ephemeris
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