Discovery[1] | |
---|---|
Discovered by | F. L. Whipple |
Discovery site | Oak Ridge Obs. |
Discovery date | 19 February 1933 |
Designations | |
(1252) Celestia | |
Named after | Celestia Whipple[2] (discoverer's mother) |
1933 DG · 1934 PA1 | |
main-belt[1][3] · (middle) Pallas[4] · background[5] | |
Orbital characteristics[3] | |
Epoch 27 April 2019 (JD 2458600.5) | |
Uncertainty parameter 0 | |
Observation arc | 85.57 yr (31,254 d) |
Aphelion | 3.2535 AU |
Perihelion | 2.1350 AU |
2.6943 AU | |
Eccentricity | 0.2076 |
4.42 yr (1,615 d) | |
137.14° | |
0° 13m 22.44s / day | |
Inclination | 33.839° |
140.91° | |
63.589° | |
Physical characteristics | |
17.39±1.6 km[6] 19.037±0.304 km[7][8] 20.36±0.69 km[9] 21.542±0.155 km[10] 21.56±0.95 km[11] | |
10.636 h[12] | |
0.167[11] 0.1714[10] 0.193[9] 0.215[7][8] 0.2573[6] | |
Tholen = S[4] SMASS = S[4] B–V = 0.890[4] U–B = 0.425[4] | |
10.89[1][3][6][7][9][10][11] | |
1252 Celestia, provisional designation 1933 DG, is a stony asteroid located in the central asteroid belt. It was discovered on 19 February 1933, by astronomer Fred Whipple at the Oak Ridge Observatory operated by the Harvard-Smithsonian Center for Astrophysics in Massachusetts, United States.[1] The S-type asteroid has a rotation period of 10.6 hours and measures approximately 20 kilometers (12 miles) in diameter.[13] It was named after the discoverer's mother, Celestia MacFarland Whipple.[2]
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