Orbital diagram | |
Discovery | |
---|---|
Discovered by | P. M. Henry, 1876 |
Discovery date | 28 September 1876 |
Designations | |
(169) Zelia | |
Named after | Zelia Martin |
A876 SB; 1933 FC2 | |
Minor planet category | Main belt |
Orbital characteristics[1] | |
Epoch 31 July 2016 (JD 2457600.5) | |
Uncertainty parameter 0 | |
Observation arc | 131.26 yr (47944 d) |
|{{{apsis}}}|helion}} | 2.6662 astronomical unit|AU (398.86 Gm) |
|{{{apsis}}}|helion}} | 2.0511 AU (306.84 Gm) |
2.3586 AU (352.84 Gm) | |
Eccentricity | 0.13040 |
Orbital period | 3.62 yr (1323.1 d) |
Mean anomaly | 249.62° |
Mean motion | 0° 16m 19.524s / day |
Inclination | 5.5001° |
Longitude of ascending node | 354.77° |
334.90° | |
Earth MOID | 1.04119 AU (155.760 Gm) |
Jupiter MOID | 2.65309 AU (396.897 Gm) |
TJupiter | 3.535 |
Physical characteristics | |
Mean radius | 16.80±1.3 km[1] 19.3 ± 0.45 km[2] |
Rotation period | 14.537 h (0.6057 d) |
Geometric albedo | 0.178 ± 0.035[2] 0.2347±0.041[1] |
O (Bus & Binzel)[2] | |
Absolute magnitude (H) | 9.56 |
Zelia (minor planet designation: 169 Zelia) is a main belt asteroid that was discovered by the brothers Paul Henry and Prosper Henry on September 28, 1876. Credit for this discovery was given to Prosper.[3] Initial orbital elements for this asteroid were published in 1877 by American astronomer H. A. Howe.[4]
Based upon its spectrum, this body is classified as a rare O-type asteroid in the taxonomic system of Bus & Binzel.[2] Photometric observations of this asteroid during 2009 gave a light curve with a period of 14.537 ± 0.001 hours and a brightness variation of 0.14 ± 0.03 in magnitude.[5]
It was named for Zelia Martin, a niece of the astronomer Camille Flammarion.[6]
Original source: https://en.wikipedia.org/wiki/169 Zelia.
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