3045 Alois
| Discovery [1] | |
|---|---|
| Discovered by | J. Wagner |
| Discovery site | Anderson Mesa Stn. |
| Discovery date | 8 January 1984 |
| Designations | |
| 3045 Alois | |
Named after | Alois T. Stuczynski (discoverer's family)[2] |
| 1984 AW · 1954 QD 1965 QD · 1971 SB3 1982 SY3 | |
| main-belt · (outer) [3] | |
| Orbital characteristics [1] | |
| Epoch 31 July 2016 (JD 2457600.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 65.02 yr (23,747 days) |
| Aphelion | 3.4836 AU |
| Perihelion | 2.7786 AU |
| 3.1311 AU | |
| Eccentricity | 0.1126 |
| 5.54 yr (2,024 days) | |
| 49.4387° | |
| 0° 10m 40.44s / day | |
| Inclination | 3.3434° |
| 36.2074° | |
| 331.0104° | |
| Physical characteristics | |
| Dimensions | 23.51±1.58 km[4] 26.64 km (calculated)[3] 27.49±0.20 km[5] |
| 3.7533±0.0058 h[6] | |
| 0.057 (assumed)[3] 0.059±0.009[5] 0.095±0.015[4] | |
| X [7] · C [3] | |
| 11.40[4] 11.412±0.001 (R)[6] 11.50[5] 11.6[1][3] 11.91±0.17[7] | |
3045 Alois, provisional designation 1984 AW, is a carbonaceous asteroid from the outer region of the asteroid belt, approximately 26 kilometers in diameter. It was discovered by the astronomer Joe Wagner at Lowell's Anderson Mesa Station in Flagstaff, Arizona, on 8 January 1984.[8]
The C-type body is also classified as a X-type asteroid by Pan-STARRS' large-scale survey.[7] It orbits the Sun at a distance of 2.8–3.5 AU once every 5 years and 6 months (2,024 days). Its orbit is tilted by 3° to the plane of the ecliptic and shows an eccentricity of 0.11.[1] The first precovery was taken at Palomar Observatory in 1951, extending the asteroid's observation arc by 33 years prior to its discovery.[8]
A rotational light-curve of this asteroid was obtained from photometric observations made at the U.S. Palomar Transient Factory, California, in November 2010. It gave a rotation period of 3.7533±0.0058 hours with a brightness amplitude of 0.18 in magnitude (U=2).[6]
According to the space-based surveys by the Japanese Akari satellite and NASA's Wide-field Infrared Survey Explorer, the asteroid measures 23.5 and 27.5 kilometers in diameter, respectively, and has a corresponding albedo of 0.095 and 0.059.[4][5] The Collaborative Asteroid Lightcurve Link assumes a standard albedo for carbonaceous asteroids of 0.057 and calculates a diameter of 26.6 kilometers.[3]
The minor planet was named by the discoverer in memory of his grandfather, Alois T. Stuczynski.[2] Naming citation was published on 7 March 1985 (M.P.C. 9479).[9]
References
- ^ a b c d "JPL Small-Body Database Browser: 3045 Alois (1984 AW)" (2016-02-10 last obs.). Jet Propulsion Laboratory. Retrieved 13 May 2016.
- ^ a b Schmadel, Lutz D. (2007). Dictionary of Minor Planet Names – (3045) Alois. Springer Berlin Heidelberg. p. 251. ISBN 978-3-540-00238-3. Retrieved 13 May 2016.
- ^ a b c d e f "LCDB Data for (3045) Alois". Asteroid Lightcurve Database (LCDB). Retrieved 13 May 2016.
- ^ a b c d 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 13 May 2016.
- ^ a b c d 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 13 May 2016.
- ^ a b c 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 13 May 2016.
- ^ a b c 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 13 May 2016.
- ^ a b "3045 Alois (1984 AW)". Minor Planet Center. Retrieved 13 May 2016.
- ^ "MPC/MPO/MPS Archive". Minor Planet Center. Retrieved 13 May 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
- 3045 Alois at the JPL Small-Body Database
