1957 Angara
| Discovery [1] | |
|---|---|
| Discovered by | L. Chernykh |
| Discovery site | CrAO - Nauchnyj |
| Discovery date | 1 April 1970 |
| Designations | |
| MPC designation | 1957 Angara |
Named after | Angara River[2] |
|
1970 GF · 1962 WG1 1969 AA | |
| main-belt · Eos [3] | |
| Orbital characteristics [1] | |
| Epoch 13 January 2016 (JD 2457400.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 59.38 yr (21687 days) |
| Aphelion | 3.1874 AU (476.83 Gm) |
| Perihelion | 2.8281 AU (423.08 Gm) |
| 3.0077 AU (449.95 Gm) | |
| Eccentricity | 0.059717 |
| 5.22 yr (1905.3 d) | |
| 231.39° | |
| 0° 11m 20.22s / day | |
| Inclination | 11.180° |
| 50.783° | |
| 209.77° | |
| Earth MOID | 1.81809 AU (271.982 Gm) |
| Jupiter MOID | 1.83655 AU (274.744 Gm) |
| Jupiter Tisserand parameter | 3.219 |
| Physical characteristics | |
| Dimensions |
21.44±0.70 km[4] 18.189±0.229 km[5] 30.41±0.58 km[6] 18.38 km (derived)[3] |
| 3.67 h (0.153 d)[1][7] | |
|
0.111±0.008[4] 0.1438±0.0310[5] 0.055±0.006[6] 0.14 (assumed)[3] | |
|
B–V = 0.900 U–B = 0.380 S [3] | |
| 11.36 | |
|
| |
1957 Angara, provisional designation 1970 GF, is a stony asteroid from the outer region of the asteroid belt, approximately 18 kilometer in diameter. It was discovered by Russian female astronomer Lyudmila Chernykh at the Crimean Astrophysical Observatory in Nauchnyj on 1 April 1970.[8]
The S-type asteroid is a member of the Eos family. It orbits the Sun at a distance of 2.8–3.2 AU once every 5 years and 3 months (1,904 days). It has a rotation period of 3.67 hours[7] and a geometric albedo of about 0.11–0.14.[4][5]
It is named for the over 1000-mile long Siberian Angara River that drains Lake Baikal.[2]
References
- 1 2 3 "JPL Small-Body Database Browser: 1957 Angara (1970 GF)" (2015-10-12 last obs.). Jet Propulsion Laboratory. Retrieved 18 April 2016.
- 1 2 Schmadel, Lutz D. (2003). Dictionary of Minor Planet Names – (1957) Angara. Springer Berlin Heidelberg. p. 157. ISBN 978-3-540-29925-7. Retrieved 23 August 2016.
- 1 2 3 4 "LCDB Data for (1957) Angara". Asteroid Lightcurve Database (LCDB). Retrieved 23 August 2016.
- 1 2 3 Usui, Fumihiko; Kuroda, Daisuke; Müller, Thomas G.; Hasegawa, Sunao; Ishiguro, Masateru; Ootsubo, Takafumi; et al. (October 2011). "Asteroid Catalog Using Akari: AKARI/IRC Mid-Infrared Asteroid Survey". Publications of the Astronomical Society of Japan. 63 (5): 1117–1138. Bibcode:2011PASJ...63.1117U. doi:10.1093/pasj/63.5.1117. Retrieved 23 August 2016.
- 1 2 3 Mainzer, A.; Grav, T.; Masiero, J.; Hand, E.; Bauer, J.; Tholen, D.; et al. (November 2011). "NEOWISE Studies of Spectrophotometrically Classified Asteroids: Preliminary Results". The Astrophysical Journal. 741 (2): 25. arXiv:1109.6407
. Bibcode:2011ApJ...741...90M. doi:10.1088/0004-637X/741/2/90. Retrieved 23 August 2016. - 1 2 Masiero, Joseph R.; Mainzer, A. K.; Grav, T.; Bauer, J. M.; Cutri, R. M.; Nugent, C.; Cabrera, M. S. (November 2012). "Preliminary Analysis of WISE/NEOWISE 3-Band Cryogenic and Post-cryogenic Observations of Main Belt Asteroids". The Astrophysical Journal Letters. 759 (1): 5. arXiv:1209.5794. Bibcode:2012ApJ...759L...8M. doi:10.1088/2041-8205/759/1/L8. Retrieved 23 August 2016.
- 1 2 Binzel, R. P. (October 1987). "A photoelectric survey of 130 asteroids". Icarus: 135–208. Bibcode:1987Icar...72..135B. doi:10.1016/0019-1035(87)90125-4. ISSN 0019-1035. Retrieved 23 August 2016.
- ↑ "1957 Angara (1970 GF)". Minor Planet Center. Retrieved 23 August 2016.
External links
- Asteroid Lightcurve Database (LCDB), query form (info)
- Dictionary of Minor Planet Names, Google books
- 1957 Angara at the JPL Small-Body Database
This article is issued from Wikipedia - version of the 9/23/2016. The text is available under the Creative Commons Attribution/Share Alike but additional terms may apply for the media files.