26 Proserpina

26 Proserpina  

Discovery
Discovered by	R. Luther
Discovery date	May 5, 1853
Designations
Named after	Proserpina
Alternate name(s)	1935 KK; 1954 WD1
Minor planet category	Main belt
Orbital characteristics
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°
Proper orbital elements
Physical characteristics
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.

References

1. ^ ^{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. 
2. ^ http://www.psi.edu/pds/asteroid/EAR_A_5_DDR_DERIVED_LIGHTCURVE_V8_0/data/lc.tab
3. ^ http://www.psi.edu/pds/asteroid/EAR_A_5_DDR_ALBEDOS_V1_1/data/albedos.tab

External links

• Orbital simulation from JPL (Java) / Ephemeris

This article about an S-type asteroid native to the main belt is a stub. You can help Wikipedia by expanding it. v t e