1461 Jean-Jacques
| Discovery [1] | |
|---|---|
| Discovered by | M. Laugier |
| Discovery site | Nice Observatory |
| Discovery date | 30 December 1937 |
| Designations | |
| 1461 Jean-Jacques | |
Named after | Jean-Jacques Laugier (son of discoverer)[2] |
| 1937 YL · 1935 OH 1939 GH | |
| main-belt · (outer) [3] | |
| Orbital characteristics [1] | |
| Epoch 31 July 2016 (JD 2457600.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 80.70 yr (29476 days) |
| Aphelion | 3.2757 AU (490.04 Gm) |
| Perihelion | 2.9810 AU (445.95 Gm) |
| 3.1283 AU (467.99 Gm) | |
| Eccentricity | 0.047117 |
| 5.53 yr (2021.0 d) | |
| 111.45° | |
| 0° 10m 41.268s / day | |
| Inclination | 15.307° |
| 104.70° | |
| 336.12° | |
| Earth MOID | 2.00091 AU (299.332 Gm) |
| Jupiter MOID | 1.90503 AU (284.988 Gm) |
| TJupiter | 3.157 |
| Physical characteristics | |
| Dimensions | 32.94 km[4] 33.75±1.40 km[5] 41.431±0.464 km[6] 25.33±1.04 km[7] |
| 16.47±0.7 km | |
| 16.56 h (0.690 d)[1][8] | |
| 0.1613[4] 0.168±0.017[5] 0.1022±0.0095[6] 0.273±0.043[7] 0.1613±0.014[1] | |
| B–V = 0.715 U–B = 0.210 Tholen = M M [3] | |
| 10.01 | |
1461 Jean-Jacques, provisional designation 1937 YL, is a metallic asteroid from the outer region of the asteroid belt, about 33 kilometers in diameter. It was discovered by French female astronomer Marguerite Laugier at Nice Observatory in southern France on 30 December 1937.[9]
The metallic M-type asteroid orbits the Sun at a distance of 3.0–3.3 AU once every five and a half years (2,020 days). Its orbit shows an eccentricity of 0.05 and is tilted by 15 degrees to the plane of the ecliptic. It has a rotation period of 16.6 hours[8] and a geometric albedo of 0.10–0.27 according to the surveys carried out by IRAS, Akari, WISE and NEOWISE.[4][5][6][7]
The minor planet was named after Jean-Jacques Laugier, the son of the discoverer.[2]
References
- ^ a b c d "JPL Small-Body Database Browser: 1461 Jean-Jacques (1937 YL)" (2015-10-14 last obs.). Jet Propulsion Laboratory. Retrieved 27 April 2016.
- ^ a b Schmadel, Lutz D. (2003). Dictionary of Minor Planet Names – (1461) Jean-Jacques. Springer Berlin Heidelberg. p. 117. ISBN 978-3-540-29925-7. Retrieved 18 November 2015.
- ^ a b "LCDB Data for (1461) Jean-Jacques". Asteroid Lightcurve Database (LCDB). Retrieved 18 November 2015.
- ^ a b c Tedesco, E. F.; Noah, P. V.; Noah, M.; Price, S. D. (October 2004). "IRAS Minor Planet Survey V6.0". NASA Planetary Data System. Bibcode:2004PDSS...12.....T. Retrieved 18 November 2015.
- ^ a b c Usui, Fumihiko; Kuroda, Daisuke; Müller, Thomas G.; Hasegawa, Sunao; Ishiguro, Masateru; 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 18 November 2015.
- ^ a b c Mainzer, A.; Grav, T.; Masiero, J.; Hand, E.; Bauer, J.; 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 18 November 2015.
- ^ a b c Masiero, Joseph R.; Mainzer, A. K.; Grav, T.; Bauer, J. M.; Cutri, R. M.; 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 18 November 2015.
- ^ a b Behrend, Raoul. "Asteroids and comets rotation curves – (1461) Jean-Jacques". Geneva Observatory. Retrieved 18 November 2015.
- ^ "1461 Jean-Jacques (1937 YL)". Minor Planet Center. Retrieved 18 November 2015.
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
- 1461 Jean-Jacques at the JPL Small-Body Database
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