399 Persephone

399 Persephone

Discovery
Discovered by	Max Wolf
Discovery date	February 23, 1895
Designations
Named after	Persephone
Alternate name(s)	1895 BP
Minor planet category	Main belt
Orbital characteristics
Epoch 30 January 2005 (JD 2453400.5)
Aphelion	488.18 Gm (3.263 AU)
Perihelion	426.404 Gm (2.85 AU)
Semi-major axis	457.292 Gm (3.057 AU)
Eccentricity	0.068
Orbital period	1952.055 d (5.34 a)
Average orbital speed	17.04 km/s
Mean anomaly	204.409°
Inclination	13.082°
Longitude of ascending node	346.609°
Argument of perihelion	189.387°
Proper orbital elements
Physical characteristics
Dimensions	49.1 km
Mass	~1.2×1017 kg
Mean density	2.0? g/cm³
Equatorial surface gravity	~0.0137 m/s²
Escape velocity	~0.0260 km/s
Rotation period	unknown
Albedo	0.10?
Temperature	~159 K
Spectral type	unknown
Absolute magnitude (H)	9.0

399 Persephone is a typical Main belt asteroid.

It was discovered by Max Wolf on February 23, 1895 in Heidelberg.^[1]

References

1. ^ Schmadel, Lutz D. (2003). Dictionary of minor planet names. Springer. pp. 48. ISBN 978-3-540-00238-3. http://books.google.com/books?id=KWrB1jPCa8AC&pg=PA48&lpg=PA48&dq=399+Persephone+-wikipedia&source=bl&ots=BFHPcOKaWG&sig=04ouZ-KLhUxustbzXYix91bIvBc&hl=en&ei=kBfJSZ_QHYm4sAOHh7WDAQ&sa=X&oi=book_result&resnum=6&ct=result. Retrieved March 24, 2009. 

External links

• 399 Persephone at the JPL Small-Body Database

• Discovery · Orbit diagram · Orbital elements · Physical parameters

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