271 Penthesilea

Penthesilea (minor planet designation: 271 Penthesilea) is a large main belt asteroid that was discovered by Viktor Knorre on 13 October 1887 in Berlin. It was his last asteroid discovery. The asteroid was named after Penthesilea, the mythical Greek queen of the Amazons.[4]

271 Penthesilea
Discovery
Discovered byViktor Knorre
Discovery date13 October 1887
Designations
(271) Penthesilea
Pronunciation/ˌpɛnθɪsɪˈliːə/[1]
Named after
Πενθεσίλεια
Main belt
Orbital characteristics[2]
Epoch 31 July 2016 (JD 2457600.5)
Uncertainty parameter 0
Observation arc112.35 yr (41037 d)
Aphelion3.3147 AU (495.87 Gm)
Perihelion2.69235 AU (402.770 Gm)
3.0035 AU (449.32 Gm)
Eccentricity0.10361
5.21 yr (1901.3 d)
243.905°
0° 11m 21.624s / day
Inclination3.5395°
335.367°
58.345°
Physical characteristics
Dimensions57.93±3.3 km
18.787 h (0.7828 d)[2][3]
0.0633±0.008
9.80

    Photometric observations of this asteroid were made in early 2009 at the Organ Mesa Observatory in Las Cruces, New Mexico. The resulting light curve shows a synodic rotation period of 18.787 ± 0.001 hours with a brightness variation of 0.32 ± 0.04 in magnitude.[3]

    References
    1. Noah Webster (1884) A Practical Dictionary of the English Language
    2. Yeomans, Donald K., "271 Penthesilea", JPL Small-Body Database Browser, NASA Jet Propulsion Laboratory, retrieved 11 May 2016.
    3. Pilcher, Frederick (July 2009), "Rotation Period Determinations for 120 Lachesis, 131 Vala 157 Dejanira, and 271 Penthesilea", The Minor Planet Bulletin, 36 (3), pp. 100–102, Bibcode:2009MPBu...36..100P.
    4. Schmadel, Lutz D.; International Astronomical Union (2003). Dictionary of minor planet names. Berlin; New York: Springer-Verlag. p. 39. ISBN 978-3-540-00238-3.


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