1789 Dobrovolsky
Discovery [1] | |
---|---|
Discovered by | L. Chernykh |
Discovery site | CrAO - Nauchnyj |
Discovery date | 19 August 1966 |
Designations | |
MPC designation | 1789 Dobrovolsky |
Named after |
Georgy Dobrovolsky (cosmonaut)[2] |
1966 QC · 1936 KK 1939 GR · 1943 SG 1946 NA · 1953 TC2 1953 VX3 · 1955 EJ 1956 PD · 1956 RT 1969 OF | |
main-belt · Flora [3] | |
Orbital characteristics [1] | |
Epoch 13 January 2016 (JD 2457400.5) | |
Uncertainty parameter 0 | |
Observation arc | 71.94 yr (26277 days) |
Aphelion | 2.6313 AU (393.64 Gm) |
Perihelion | 1.7956 AU (268.62 Gm) |
2.2135 AU (331.13 Gm) | |
Eccentricity | 0.18877 |
3.29 yr (1202.8 d) | |
15.738° | |
0° 17m 57.444s / day | |
Inclination | 1.9761° |
102.10° | |
215.02° | |
Earth MOID | 0.780633 AU (116.7810 Gm) |
Jupiter MOID | 2.64507 AU (395.697 Gm) |
Jupiter Tisserand parameter | 3.631 |
Physical characteristics | |
Dimensions |
±0.077 km 7.809[4] ±0.37 km 11.23[5] 9.85 km (calculated)[3] |
4.812 h (0.2005 d)[lower-alpha 1][1] h 5.8[6] ±0.0025 h 4.8111[7] ±0.020 h 4.800[8] | |
±0.0243 0.1825[4] ±0.031 0.185[5] 0.24 (assumed)[3] | |
S [3] | |
12.2 | |
|
1789 Dobrovolsky, provisional designation 1966 QC, is an asteroid from the inner regions of the asteroid belt, about 10 kilometers in diameter. It was discovered by Russian female astronomer Lyudmila Chernykh at the Crimean Astrophysical Observatory in Nauchnyj on 19 August 1966.[9]
The asteroid is a member of the Flora family, a large group of stony S-type asteroids in the inner main-belt. It orbits the Sun at a distance of 1.8–2.6 AU once every 3.29 years (1,203 days). Its orbit shows an eccentricity of 0.19 and is inclined by 2 degrees to the plane of the ecliptic. It has a rotation period of 4.812 hours and a geometric albedo of about 0.19, as measured by the Wide-field Infrared Survey Explorer and subsequent NEOWISE mission.[4][5] The Collaborative Asteroid Lightcurve Link (CALL), however, assumes an albedo around 0.24.[3]
The asteroid was named in honor of Ukrainian–Soviet cosmonaut Georgiy Timofeyevich Dobrovolsky, commander of the Soyuz 11 spacecraft, who died on 30 June 1971 during the vehicle's return to Earth after completing the flight program of the first manned orbital station, Salyut. The subsequently numbered minor planets 1790 Volkov and 1791 Patsayev were named in honour of his dead crew members.[2] The names of all three cosmonauts are also engraved on the plaque next to the sculpture of the Fallen Astronaut on the Moon, which was placed there during the Apollo 15 mission, containing the names of eight American astronauts and six Soviet cosmonauts, who had all died in service.
References
- ↑ Skiff, B.A. (2011) web: rotation period ±0.001 hours with a brightness amplitude of 4.812 mag. Summary figures at 0.13Collaborative Asteroid Lightcurve Link (CALL) for (1746) Brouwer
- 1 2 3 "JPL Small-Body Database Browser: 1789 Dobrovolsky (1966 QC)" (2015-09-03 last obs.). Jet Propulsion Laboratory. Retrieved 20 April 2016.
- 1 2 Schmadel, Lutz D. (2003). Dictionary of Minor Planet Names – (1789) Dobrovolsky. Springer Berlin Heidelberg. p. 143. ISBN 978-3-540-29925-7. Retrieved 16 November 2015.
- 1 2 3 4 5 "LCDB Data for (1789) Dobrovolsky". Asteroid Lightcurve Database (LCDB). Retrieved 16 November 2015.
- 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 16 November 2015.
- 1 2 3 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 16 November 2015.
- ↑ Lagerkvist, C.-I. (March 1978). "Photographic photometry of 110 main-belt asteroids". Astronomy and Astrophysics Supplement Series: 361–381. Bibcode:1978A&AS...31..361L. Retrieved 16 November 2015.
- ↑ Waszczak, Adam; Chang, Chan-Kao; Ofek, Eran O.; Laher, Russ; Masci, Frank; Levitan, David; et al. (September 2015). "Asteroid Light Curves from the Palomar Transient Factory Survey: Rotation Periods and Phase Functions from Sparse Photometry". The Astronomical Journal. 150 (3): 35. arXiv:1504.04041. Bibcode:2015AJ....150...75W. doi:10.1088/0004-6256/150/3/75. Retrieved 16 November 2015.
- ↑ Chang, Chan-Kao; Ip, Wing-Huen; Lin, Hsing-Wen; Cheng, Yu-Chi; Ngeow, Chow-Choong; Yang, Ting-Chang; et al. (August 2015). "Asteroid Spin-rate Study Using the Intermediate Palomar Transient Factory". The Astrophysical Journal Supplement Series. 219 (2): 19. arXiv:1506.08493. Bibcode:2015ApJS..219...27C. doi:10.1088/0067-0049/219/2/27. Retrieved 16 November 2015.
- ↑ "1789 Dobrovolsky (1966 QC)". Minor Planet Center. Retrieved 16 November 2015.
External links
- Asteroid Lightcurve Database (LCDB), query form (info)
- Dictionary of Minor Planet Names, Google books
- Asteroids and comets rotation curves, CdR – Observatoire de Genève, Raoul Behrend
- Discovery Circumstances: Numbered Minor Planets (1)-(5000) – Minor Planet Center
- 1789 Dobrovolsky at the JPL Small-Body Database