Discovery[1] | |
---|---|
Discovered by | L. Chernykh |
Discovery site | Crimean Astrophysical Obs. |
Discovery date | 1 April 1970 |
Designations | |
(1957) Angara | |
Named after | Angara River (Siberian river)[2] |
1970 GF · 1962 WG1 1969 AA | |
main-belt · Eos[3] | |
Orbital characteristics[1] | |
Epoch 4 September 2017 (JD 2458000.5) | |
Uncertainty parameter 0 | |
Observation arc | 60.58 yr (22,126 days) |
Aphelion | 3.1828 AU |
Perihelion | 2.8338 AU |
3.0083 AU | |
Eccentricity | 0.0580 |
5.22 yr (1,906 days) | |
345.36° | |
0° 11m 20.04s / day | |
Inclination | 11.191° |
50.702° | |
209.03° | |
Physical characteristics | |
Dimensions | 17.907±0.108 km[4] 18.189±0.229 km[5] 18.38 km (derived)[3] 21.44±0.70 km[6] 30.41±0.58 km[7] |
3.67 h[8] | |
0.055±0.006[7] 0.111±0.008[6] 0.14 (assumed)[3] 0.1438±0.0310[5] | |
S[3][8] B–V = 0.900[1] U–B = 0.380[1] | |
11.16±0.34[9] · 11.36[1][6][7] · 11.43[3][5][8] | |
1957 Angara (prov. designation: 1970 GF) is a stony Eos asteroid from the outer regions of the asteroid belt, approximately 18 kilometers (11 miles) in diameter. It was discovered on 1 April 1970, by Soviet astronomer Lyudmila Chernykh at the Crimean Astrophysical Observatory in Nauchnyj, and named after the Siberian Angara River.[2][10]
jpldata
was invoked but never defined (see the help page).springer
was invoked but never defined (see the help page).lcdb
was invoked but never defined (see the help page).Masiero-2011
was invoked but never defined (see the help page).WISE
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was invoked but never defined (see the help page).Masiero-2012
was invoked but never defined (see the help page).Binzel-1987b
was invoked but never defined (see the help page).Veres-2015
was invoked but never defined (see the help page).MPC-Angara
was invoked but never defined (see the help page).