9983 Rickfienberg
|
Orbits of 9983 Rickfienberg (blue), inner planets (red) and Jupiter (outermost) | |
| Discovery [1] | |
|---|---|
| Discovered by | Dennis di Cicco |
| Discovery site | Sudbury Obs. (817) |
| Discovery date | 19 February 1995 |
| Designations | |
| MPC designation | 9983 Rickfienberg |
Named after |
Richard Fienberg (astronomer, editor)[2] |
|
1995 DA · 1987 KS2 1993 TS37 | |
| main-belt · (middle) | |
| Orbital characteristics [1] | |
| Epoch 16 February 2017 (JD 2457800.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 29.43 yr (10,751 days) |
| Aphelion | 3.0184 AU |
| Perihelion | 2.3952 AU |
| 2.7068 AU | |
| Eccentricity | 0.1151 |
| 4.45 yr (1,627 days) | |
| 63.316° | |
| 0° 13m 16.68s / day | |
| Inclination | 8.3220° |
| 49.221° | |
| 7.1218° | |
| Physical characteristics | |
| Dimensions |
7.444±0.280 km[3][4] 12.18 km (calculated)[5] |
|
5.29616±0.00001 h[6] 5.2963±0.0001 h[7] | |
|
0.057 (assumed)[5] 0.167±0.035[3][4] | |
| C [5] | |
| 13.2[3] · 13.3[1][5] · 13.79±0.76[8] | |
|
| |
9983 Rickfienberg, provisional designation 1995 DA, is a carbonaceous asteroid from the middle region of the asteroid belt, approximately 10 kilometers in diameter. It was discovered on 19 February 1995, by American astronomer Dennis di Cicco at his private Sudbury Observatory (817), Massachusetts, United States.[9]
The dark C-type asteroid orbits the Sun at a distance of 2.4–3.0 AU once every 4 years and 5 months (1,627 days). Its orbit has an eccentricity of 0.12 and an inclination of 8° with respect to the ecliptic.[1] The first observation was taken at the Australian Siding Spring Observatory in 1987, extending the asteroid's observation arc by 8 years prior to its discovery.[9]
During the asteroid's opposition in November 2011, a rotational light-curve was obtained from photometric observations at Kitt Peak Observatory. It gave a well-defined rotation period of 5.2963±0.0001 hours with a high brightness variation of 1.3 in magnitude (U=3), typically indicating an non-spheroidal shape.[7] This period was also confirmed by remodeled data from the Lowell photometric database in March 2016.[6]
According to the survey carried out by the NEOWISE mission of NASA's Wide-field Infrared Survey Explorer, the asteroid measures 7.4 kilometers in diameter and its surface has an albedo of 0.17,[3][4] while the Collaborative Asteroid Lightcurve Link assumes a standard albedo for carbonaceous asteroids of 0.057 and calculates a diameter of 12.2 kilometers, as the lower the body's albedo (reflectivity), the larger its diameter, at a constant absolute magnitude (brightness).[5]
The minor planet was named for Richard Tresch Fienberg (b. 1956) an American astronomer at Rice and Harvard universities, and a stargazer at his private observatory near Danbury, New Hampshire. He is also an editor of the American amateur astronomer magazine Sky & Telescope, after which the minor planet 3243 Skytel is named.[2] Naming citation was published on 1 May 2003 (M.P.C. 48389).[10]
References
- 1 2 3 4 "JPL Small-Body Database Browser: 9983 Rickfienberg (1995 DA)" (2016-11-04 last obs.). Jet Propulsion Laboratory. Retrieved 4 December 2016.
- 1 2 Schmadel, Lutz D. (2006). Dictionary of Minor Planet Names – (9983) Rickfienberg, Addendum to Fifth Edition: 2003–2005. Springer Berlin Heidelberg. p. 49. ISBN 978-3-540-34361-5. Retrieved 1 August 2016.
- 1 2 3 4 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 1 August 2016. - 1 2 3 Masiero, Joseph R.; Mainzer, A. K.; Grav, T.; Bauer, J. M.; Cutri, R. M.; Dailey, J.; et al. (November 2011). "Main Belt Asteroids with WISE/NEOWISE. I. Preliminary Albedos and Diameters". The Astrophysical Journal. 741 (2): 20. arXiv:1109.4096. Bibcode:2011ApJ...741...68M. doi:10.1088/0004-637X/741/2/68. Retrieved 4 December 2016.
- 1 2 3 4 5 "LCDB Data for (9983) Rickfienberg". Asteroid Lightcurve Database (LCDB). Retrieved 1 August 2016.
- 1 2 Durech, J.; Hanus, J.; Oszkiewicz, D.; Vanco, R. (March 2016). "Asteroid models from the Lowell photometric database". Astronomy and Astrophysics. 587: 6. arXiv:1601.02909. Bibcode:2016A&A...587A..48D. doi:10.1051/0004-6361/201527573. Retrieved 1 August 2016.
- 1 2 Tatge, Coty B.; Odden, Caroline, E.; Arion, Douglas N.; Feinberg, Richard Tresch (July 2012). "Spectrophotometric Classification and Lightcurve Analysis of 9983 Rickfienberg". The Minor Planet Bulletin. 39 (3): 135–136. Bibcode:2012MPBu...39..135T. ISSN 1052-8091. Retrieved 1 August 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 1 August 2016.
- 1 2 "9983 Rickfienberg (1995 DA)". Minor Planet Center. Retrieved 1 August 2016.
- ↑ "MPC/MPO/MPS Archive". Minor Planet Center. Retrieved 1 August 2016.
External links
- Richard Tresch Fienberg, Sky & Telescope, 18 July 2006
- My Place in the Dark, by Richard Tresch Fienberg, Sky & Telescope,17 July 2006
- 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 (5001)-(10000) – Minor Planet Center
- 9983 Rickfienberg at the JPL Small-Body Database
