4524 Barklajdetolli
| Discovery [1] | |
|---|---|
| Discovered by | L. V. Zhuravleva |
| Discovery site | Crimea–Nauchnij |
| Discovery date | 8 September 1981 |
| Designations | |
| MPC designation | 4524 Barklajdetolli |
Named after |
Michael Andreas Barclay de Tolly (Russian Field Marshal)[2] |
|
1981 RV4 · 1935 SC1 1935 SN · 1973 FH 1988 RR6 | |
| main-belt · Flora [3] | |
| Orbital characteristics [1] | |
| Epoch 31 July 2016 (JD 2457600.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 62.67 yr (22,892 days) |
| Aphelion | 2.6286 AU |
| Perihelion | 2.0125 AU |
| 2.3206 AU | |
| Eccentricity | 0.1328 |
| 3.54 yr (1,291 days) | |
| 336.15° | |
| 0° 16m 43.68s / day | |
| Inclination | 7.2863° |
| 177.20° | |
| 149.48° | |
| Physical characteristics | |
| Dimensions |
7.14 km (calculated)[3] 12.12±0.18 km[4] 13.59±0.26 km[5] |
| 1069 h[6] | |
|
0.052±0.002[5] 0.100±0.010[4] 0.24 (assumed)[3] | |
| S [3] | |
|
12.70[4] 12.89±0.38[7] 12.9[1][3] 13.20[5] | |
|
| |
4524 Barklajdetolli, provisional designation 1981 RV4, is a stony Flora asteroid and an exceptionally slow rotator from the inner regions of the asteroid belt, approximately 10 kilometers in diameter. It was discovered on 8 September 1981, by Russian–Ukrainian female astronomer Lyudmila Zhuravleva at the Crimean Astrophysical Observatory in Nauchnyj on the Crimean peninsula.[8]
The S-type asteroid is a member of the Flora family, one of the largest groups of stony asteroids in the main-belt. It orbits the Sun at a distance of 2.0–2.6 AU once every 3 years and 6 months (1,291 days). Its orbit has an eccentricity of 0.13 and an inclination of 7° with respect to the ecliptic.[1] The first used precovery was taken at Palomar Observatory in 1953, extending the asteroid's observation arc by 28 years prior to its discovery.[8]
In August 2009, a rotational light-curve for this asteroid was obtained at the U.S. Carbuncle Hill Observatory (912) on Rhode Island. The light-curve gave an exceptionally long rotation period of 1,069 hours with a high brightness amplitude of 1.26 in magnitude (U=2). While the period still may be wrong by a few hundred hours, it is one of the slowest rotating asteroids known to exist.[6]
According to the surveys carried out by the Japanese Akari satellite and NASA's Wide-field Infrared Survey Explorer with its subsequent NEOWISE mission, the asteroid's surface has a low albedo of 0.05 and 0.10, respectively, while the Collaborative Asteroid Lightcurve Link (CALL) assumes a much higher albedo of 0.24, derived from the Flora family's largest member and namesake, the asteroid 8 Flora. The divergent albedos also translate into different estimates for the body's size. While the space-based surveys find a diameter of 12.1 and 13.6 kilometers, respectively, CALL calculates only 7.1 kilometers, as the higher the body's albedo (reflectivity), the smaller its diameter, at a constant absolute magnitude (brightness).[3][4][5]
The minor planet was named in memory of Russian Field Marshal of Scottish descent, Michael Andreas Barclay de Tolly (1761–1818). He was Russia's Minister of War and commander-in-chief of its armies during the French invasion of Russia in the Patriotic War of 1812.[2] Naming citation was published on 4 May 1999 (M.P.C. 34620).[9]
References
- 1 2 3 4 "JPL Small-Body Database Browser: 4524 Barklajdetolli (1981 RV4)" (2016-06-13 last obs.). Jet Propulsion Laboratory. Retrieved 30 June 2016.
- 1 2 Schmadel, Lutz D. (2007). Dictionary of Minor Planet Names – (4524) Barklajdetolli. Springer Berlin Heidelberg. p. 389. ISBN 978-3-540-00238-3. Retrieved 30 June 2016.
- 1 2 3 4 5 6 "LCDB Data for (4524) Barklajdetolli". Asteroid Lightcurve Database (LCDB). Retrieved 30 June 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. arXiv:1209.5794
. Bibcode:2012ApJ...759L...8M. doi:10.1088/2041-8205/759/1/L8. Retrieved 30 June 2016. - 1 2 3 4 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 30 June 2016.
- 1 2 Pray, Donald P.; Durkee, Russell I. (January 2010). "The Extremely Long Period of 4524 Barklajdetolli". The Minor Planet Bulletin. 37 (1): 35. Bibcode:2010MPBu...37...35P. ISSN 1052-8091. Retrieved 30 June 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. arXiv:1506.00762. Bibcode:2015Icar..261...34V. doi:10.1016/j.icarus.2015.08.007. Retrieved 30 June 2016.
- 1 2 "4524 Barklajdetolli (1981 RV4)". Minor Planet Center. Retrieved 30 June 2016.
- ↑ "MPC/MPO/MPS Archive". Minor Planet Center. Retrieved 30 June 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
- 4524 Barklajdetolli at the JPL Small-Body Database
