1957 Angara

1957 Angara
Modelled shape of Angara from its lightcurve
Discovery[1]
Discovered byL. Chernykh
Discovery siteCrimean Astrophysical Obs.
Discovery date1 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 arc60.58 yr (22,126 days)
Aphelion3.1828 AU
Perihelion2.8338 AU
3.0083 AU
Eccentricity0.0580
5.22 yr (1,906 days)
345.36°
0° 11m 20.04s / day
Inclination11.191°
50.702°
209.03°
Physical characteristics
Dimensions17.907±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]

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  4. ^ Cite error: The named reference Masiero-2011 was invoked but never defined (see the help page).
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  6. ^ a b c Cite error: The named reference AKARI was invoked but never defined (see the help page).
  7. ^ a b c Cite error: The named reference Masiero-2012 was invoked but never defined (see the help page).
  8. ^ a b c Cite error: The named reference Binzel-1987b was invoked but never defined (see the help page).
  9. ^ Cite error: The named reference Veres-2015 was invoked but never defined (see the help page).
  10. ^ Cite error: The named reference MPC-Angara was invoked but never defined (see the help page).