Discovery [1][2] | |
---|---|
Discovered by | E. F. Helin |
Discovery site | Palomar Obs. |
Discovery date | 7 January 1976 |
Designations | |
(2062) Aten | |
Pronunciation | /ˈɑːtən/ |
Named after | Aten (Egyptian mythology)[3] |
1976 AA | |
Aten · NEO [1][2] | |
Symbol | |
Orbital characteristics [1] | |
Epoch 31 December 2011 (JD 2455926.5) | |
Uncertainty parameter 0 | |
Observation arc | 59.14 yr (21,601 days) |
Earliest precovery date | 17 December 1955 |
Aphelion | 1.1434 AU |
Perihelion | 0.7901 AU |
0.9668 AU | |
Eccentricity | 0.1827 |
0.95 yr (347 days) | |
172.27° | |
1° 2m 12.48s / day | |
Inclination | 18.934° |
108.60° | |
148.04° | |
Earth MOID | 0.1131 AU · 44.1 LD |
Physical characteristics | |
Dimensions | 0.73±0.03 km[4] 0.80±0.03 km[5] 0.91 km[6] 1.1 km[7] 1.30 km[8] |
40.77 h[9] | |
0.20[8] 0.20±0.15[10] 0.26[7] 0.28[6] 0.39±0.05[4] 0.52±0.10[5] | |
S (Tholen)[1] · Sr (SMASS)[1] B–V = 0.930[1] U–B = 0.460[1] | |
16.80[1][5] · 17.01±1.40[11] · 17.12[9] · 17.20[12][6] · 17.30[4] | |
2062 Aten /ˈɑːtən/,[a] provisional designation 1976 AA, is a stony sub-kilometer asteroid and namesake of the Aten asteroids, a subgroup of near-Earth objects. The asteroid was named after Aten from Egyptian mythology.
It was discovered on 7 January 1976, at the Palomar Observatory by American astronomer Eleanor Helin,[2] who was the principal scientist for the NEAT project until her retirement in 2002. The S-type asteroid measures approximately 900 meters in diameter, has a longer-than average rotation period of 44.77 hours, and approaches the orbit Earth to 44.1 lunar distances.
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