Discovered by G. Schiaparelli Minor planet category Main belt Perihelion 372.3 Gm (2.489 AU) Discovered 29 April 1861 Spectral type M-type asteroid Named after Italy | Discovery date April 29, 1861 Aphelion 519.3 Gm (3.471 AU) Semi-major axis 445.8 Gm (2.980 AU) Orbits Sun Discoverer Giovanni Schiaparelli | |
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Discovery site Brera Astronomical Observatory Similar 68 Leto, 51 Nemausa, 56 Melete, 135 Hertha, 97 Klotho | ||
Asteroide 69 hesperia
69 Hesperia (/hɛsˈpɪəriə/ hes-PEER-ee-ə) is a large, M-type main-belt asteroid. It was discovered by the Italian astronomer Giovanni Schiaparelli on April 29, 1861 from Milan. It was his only asteroid discovery. Schiaparelli named it Hesperia in honour of Italy (the word is a Greek term for the peninsula).
Hesperia was observed by Arecibo radar in February 2010. Radar observations combined with lightcurve-based shape models, lead to a diameter estimate of 110 ± 15 km (68 mi ± 9 mi).
References
69 Hesperia Wikipedia(Text) CC BY-SA