Astronomy:6470 Aldrin
| Discovery [1] | |
|---|---|
| Discovered by | A. Mrkos |
| Discovery site | Kleť Obs. |
| Discovery date | 14 September 1982 |
| Designations | |
| (6470) Aldrin | |
| Named after | Buzz Aldrin (astronaut, Apollo 11)[2] |
| 1982 RO1 · 1989 UU2 | |
| Minor planet category | main-belt · Flora [3] |
| Orbital characteristics [1] | |
| Epoch 4 September 2017 (JD 2458000.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 34.18 yr (12,485 days) |
| |{{{apsis}}}|helion}} | 2.6217 AU |
| |{{{apsis}}}|helion}} | 1.9283 AU |
| 2.2750 AU | |
| Eccentricity | 0.1524 |
| Orbital period | 3.43 yr (1,253 days) |
| Mean anomaly | 43.625° |
| Mean motion | 0° 17m 13.92s / day |
| Inclination | 2.7915° |
| Longitude of ascending node | 237.94° |
| 152.48° | |
| Physical characteristics | |
| Dimensions | 3.00 km (calculated)[3] |
| Rotation period | 5.9944±0.0014 h[4] |
| Geometric albedo | 0.24 (assumed)[3] |
| S [3][5] | |
| Absolute magnitude (H) | 14.3[1] · 14.88±0.23[5] · 14.329±0.002 (R)[4] · 14.78[3] |
6470 Aldrin, provisional designation 1982 RO1, is a stony Flora asteroid from the inner regions of the asteroid belt, approximately 3 kilometers in diameter.
The asteroid was discovered by Czech astronomer Antonín Mrkos at Kleť Observatory on 14 September 1982.[6] It was named for American astronaut Buzz Aldrin.[2]
Orbit and classification
Aldrin is a member of the Flora family, one of the largest groups of stony asteroids in the main-belt. It orbits the Sun in the inner main-belt at a distance of 1.9–2.6 AU once every 3 years and 5 months (1,253 days). Its orbit has an eccentricity of 0.15 and an inclination of 3° with respect to the ecliptic.[1] The asteroid's observation arc begins in 1982, as no precoveries were taken and no prior identifications were made.[6]
Physical characteristics
A rotational lightcurve of Aldrin was obtained from photometric observations made at the U.S. Palomar Transient Factory in September 2013. The lightcurve gave a rotation period of 5.9944±0.0014 hours with a brightness variation of 0.82 in magnitude ({{{1}}}).[4]
The Collaborative Asteroid Lightcurve Link assumes an albedo of 0.24 – derived from 8 Flora, the largest member and namesake of this orbital family – and calculates a diameter of 3.0 kilometers with an absolute magnitude of 14.78.[3]
Naming
This minor planet was named for American astronaut Buzz Aldrin (born 1930), on the occasion of the 30th anniversary of the Apollo 11 mission.[2]
He was one of the first two humans to land on the Moon, and the second person to walk on it, following Neil Armstrong, after whom the asteroid 6469 Armstrong is named. Its name was suggested by Czech astronomers Jana Tichá, Miloš Tichý and Zdeněk Moravec, who observed the asteroid during its 1995-opposition, shortly before being numbered.[2] The official naming citation was published by the Minor Planet Center on 4 May 1999 (M.P.C. 34623).[7]
References
- ↑ 1.0 1.1 1.2 1.3 "JPL Small-Body Database Browser: 6470 Aldrin (1982 RO1)". Jet Propulsion Laboratory. https://ssd.jpl.nasa.gov/sbdb.cgi?sstr=2006470.
- ↑ 2.0 2.1 2.2 2.3 Schmadel, Lutz D. (2007). "(6470) Aldrin". Dictionary of Minor Planet Names – (6470) Aldrin. Springer Berlin Heidelberg. p. 535. doi:10.1007/978-3-540-29925-7_5889. ISBN 978-3-540-00238-3.
- ↑ 3.0 3.1 3.2 3.3 3.4 3.5 "LCDB Data for (6470) Aldrin". Asteroid Lightcurve Database (LCDB). http://www.minorplanet.info/PHP/generateOneAsteroidInfo.php?AstInfo=6470%7CAldrin.
- ↑ 4.0 4.1 4.2 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. doi:10.1088/0004-6256/150/3/75. Bibcode: 2015AJ....150...75W. http://adsabs.harvard.edu/cgi-bin/bib_query?bibcode=2015AJ....150...75W. Retrieved 8 May 2016.
- ↑ 5.0 5.1 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. doi:10.1016/j.icarus.2015.08.007. Bibcode: 2015Icar..261...34V. http://adsabs.harvard.edu/cgi-bin/bib_query?bibcode=2015Icar..261...34V. Retrieved 8 May 2016.
- ↑ 6.0 6.1 "6470 Aldrin (1982 RO1)". Minor Planet Center. https://www.minorplanetcenter.net/db_search/show_object?object_id=6470.
- ↑ "MPC/MPO/MPS Archive". Minor Planet Center. https://www.minorplanetcenter.net/iau/ECS/MPCArchive/MPCArchive_TBL.html.
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 (5001)-(10000) – Minor Planet Center
- 6470 Aldrin at AstDyS-2, Asteroids—Dynamic Site
- 6470 Aldrin at the JPL Small-Body Database
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