1804 Chebotarev
Discovery [1] | |
---|---|
Discovered by | T. Smirnova |
Discovery site | Crimean Astrophysical Obs. |
Discovery date | 6 April 1967 |
Designations | |
MPC designation | (1804) Chebotarev |
Named after | G. A. Chebotarev (astronomer)[2] |
1967 GG · 1938 QL 1942 RL · 1968 QK | |
main-belt · (inner) [3] | |
Orbital characteristics [1] | |
Epoch 4 September 2017 (JD 2458000.5) | |
Uncertainty parameter 0 | |
Observation arc | 78.05 yr (28,506 days) |
Aphelion | 2.4628 AU |
Perihelion | 2.3584 AU |
2.4106 AU | |
Eccentricity | 0.0217 |
3.74 yr (1,367 days) | |
96.780° | |
0° 15m 47.88s / day | |
Inclination | 3.6316° |
325.72° | |
305.47° | |
Physical characteristics | |
Dimensions |
±1.12 km 9.15[4] 10.79 km (calculated)[3] |
±0.002 4.026h[5] | |
0.20 (assumed)[3] ±0.289 0.501[4] | |
S [3] | |
11.56[4] · 12.2[1][3] · ±0.45 12.25[6] | |
|
1804 Chebotarev, provisional designation 1967 GG, is a stony asteroid from the inner regions of the asteroid belt, approximately 10 kilometers in diameter.
It was discovered on 6 April 1967, by Russian astronomer Tamara Smirnova at the Crimean Astrophysical Observatory in Nauchnyj on the Crimean peninsula.[7] The asteroid was named after Soviet astronomer G. A. Chebotarev.[2]
Orbit and classification
The stony S-type asteroid orbits the Sun in the inner main-belt at a distance of 2.4–2.5 AU once every 3 years and 9 months (1,367 days). Its orbit has an eccentricity of 0.02 and an inclination of 4° with respect to the ecliptic.[1] Chebotarev was first identified as 1938 QL at Yerkes Observatory in 1938, extending the body's observation arc by 29 years prior to its official discovery observation.[7]
Physical characteristics
Rotation period
In February 2004, a rotational lightcurve of Chebotarev was obtained from photometric observations by French amateur astronomer Laurent Bernasconi. It gave a well-defined rotation period of 4.026 hours with a brightness amplitude of 0.41 magnitude (U=3).[5]
Diameter and albedo
According to the survey carried out by NASA's Wide-field Infrared Survey Explorer with its subsequent NEOWISE mission, Chebotarev measures 9.15 kilometers in diameter, and its surface has a high albedo of 0.501,[4] while the Collaborative Asteroid Lightcurve Link assumes a standard albedo for stony asteroids of 0.20 and calculates a diameter of 10.79 kilometers with an absolute magnitude of 12.2.[3]
Naming
This minor planet was named in honor of G. A. Chebotarev (1913–1975), who was a professor and the director of the Institute of Theoretical Astronomy as well as president of IAU's Commission 20, (Positions & Motions of Minor Planets, Comets & Satellites). He is known for his work on celestial mechanics of asteroids, comets and satellites.[2] The official naming citation was published by the Minor Planet Center before November 1977 (M.P.C. 3569).[8]
References
- 1 2 3 4 "JPL Small-Body Database Browser: 1804 Chebotarev (1967 GG)" (2016-09-14 last obs.). Jet Propulsion Laboratory. Retrieved 8 June 2017.
- 1 2 3 Schmadel, Lutz D. (2007). Dictionary of Minor Planet Names – (1804) Chebotarev. Springer Berlin Heidelberg. pp. 144–145. ISBN 978-3-540-00238-3. Retrieved 16 December 2016.
- 1 2 3 4 5 6 "LCDB Data for (1804) Chebotarev". Asteroid Lightcurve Database (LCDB). Retrieved 16 December 2016.
- 1 2 3 4 Masiero, Joseph R.; Mainzer, A. K.; Grav, T.; Bauer, J. M.; Cutri, R. M.; Nugent, C.; et al. (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. Bibcode:2012ApJ...759L...8M. arXiv:1209.5794 . doi:10.1088/2041-8205/759/1/L8. Retrieved 16 December 2016.
- 1 2 Behrend, Raoul. "Asteroids and comets rotation curves – (1804) Chebotarev". Geneva Observatory. Retrieved 16 December 2016.
- ↑ Veres, Peter; Jedicke, Robert; Fitzsimmons, Alan; Denneau, Larry; Granvik, Mikael; Bolin, Bryce; et al. (November 2015). "Absolute magnitudes and slope parameters for 250,000 asteroids observed by Pan-STARRS PS1 - Preliminary results". Icarus. 261: 34–47. Bibcode:2015Icar..261...34V. arXiv:1506.00762 . doi:10.1016/j.icarus.2015.08.007. Retrieved 16 December 2016.
- 1 2 "1804 Chebotarev (1967 GG)". Minor Planet Center. Retrieved 16 December 2016.
- ↑ "MPC/MPO/MPS Archive". Minor Planet Center. Retrieved 16 December 2016.
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
- 1804 Chebotarev at the JPL Small-Body Database