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201 Penelope

From Biocrawler, the free encyclopedia.

**201 Penelope**
Discovery ^{A (http://cfa-www.harvard.edu/iau/lists/NumberedMPs.html)}
Discoverer	Johann Palisa
Discovery date	August 7, 1879
Alternate designations	A869 GA ^{B (http://cfa-www.harvard.edu/iau/MPDes.html)}
Category	Main belt
Orbital elements ^{C (http://asteroid.lowell.edu/)} Epoch 30 January, 2005 (JD 2453400.5)
Eccentricity (e)	0.18
Semi-major axis (a)	401.133 G m (2.681 AU)
Perihelion (q)	329.047 Gm (2.2 AU)
Aphelion (Q)	473.219 Gm (3.163 AU)
Orbital period (P)	1603.743 d (4.39 a)
Mean orbital speed	18.19 km/s
Inclination (i)	5.761°
Longitude of the ascending node (Ω)	157.17°
Argument of perihelion (ω)	180.769°
Mean anomaly (M)	215.135°
Physical characteristics
Dimensions	68.0 km
Mass	unknown
Density	unknown
Surface gravity	unknown
Escape velocity	unknown
Rotation period	3.74 h
Spectral class	M
Absolute magnitude	8.43
Albedo	0.160
Mean surface temperature	unknown

201 Penelope is a large Main belt asteroid. It is classified as a M-type asteroid and is probably composed of iron-nickel, either pure or mixed with stone.

It was discovered by Johann Palisa on August 7, 1879 in Pola. It was his 17th discovery.

The asteroid is named after Penelope, the wife of Odysseus in Homer's The Odyssey.

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References

The Asteroid Orbital Elements Database (ftp://ftp.lowell.edu/pub/elgb/astorb.html)
Minor Planet Discovery Circumstances (http://cfa-www.harvard.edu/iau/lists/NumberedMPs.html)
Asteroid Lightcurve Parameters (http://www.psi.edu/pds/archive/lc.html)
Asteroid Albedo Compilation (http://www.psi.edu/pds/archive/albedo.html)