1412 Lagrula
| Discovery [1] | |
|---|---|
| Discovered by | L. Boyer |
| Discovery site | Algiers Observatory |
| Discovery date | 19 January 1937 |
| Designations | |
| MPC designation | 1412 Lagrula |
Named after |
Philippe Lagrula (astronomer)[2] |
|
1937 BA · 1929 US 1962 XM | |
| main-belt · Flora [3] | |
| Orbital characteristics [1] | |
| Epoch 31 July 2016 (JD 2457600.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 86.47 yr (31584 days) |
| Aphelion | 2.4644 AU (368.67 Gm) |
| Perihelion | 1.9660 AU (294.11 Gm) |
| 2.2152 AU (331.39 Gm) | |
| Eccentricity | 0.11248 |
| 3.30 yr (1204.3 d) | |
| 85.738° | |
| 0° 17m 56.184s / day | |
| Inclination | 4.7168° |
| 66.130° | |
| 14.106° | |
| Earth MOID | 0.980336 AU (146.6562 Gm) |
| Jupiter MOID | 2.73435 AU (409.053 Gm) |
| Jupiter Tisserand parameter | 3.641 |
| Physical characteristics | |
| Dimensions |
23±3 km[4] 9.068±0.047 km[5] 23.98 km (calculated)[3] |
| 5.9176 h (0.24657 d)[1][4] | |
|
0.06[4] 0.2378±0.0284[5] 0.058 (assumed)[3] | |
| S [3] | |
| 12.3 | |
|
| |
1412 Lagrula, provisional designation 1937 BA, is a stony asteroid from the inner regions of the asteroid belt, about 23 kilometers in diameter. It was discovered on 19 January 1937 by French astronomer Louis Boyer at Algiers Observatory, Algeria in Northern Africa.[6]
The asteroid is a member of the Flora family, a large group of stony S-type asteroids in the inner main-belt. It orbits the Sun at a distance of 2.0–2.5 AU once every 3 years and 4 months (1,204 days). Its orbit shows an eccentricity of 0.11 and is tilted by 5 degrees to the plane of the ecliptic. During March and April 2013, photometric observations of Lagrula were made over ten nights with a resulting rotation period of 5.9176±0.0001 hours, measured with a brightness amplitude of 0.28 in magnitude.[4] It has an albedo of 0.23,[4] which strongly deviates from older observations made by the space-based Wide-field Infrared Survey Explorer.[5]
The minor planet was named after French astronomer Joanny-Philippe Lagrula (1870–1941), discoverer of the minor planet 775 Lumière and director of the Quito Astronomical Observatory and Algiers Observatory.[2]
References
- 1 2 3 "JPL Small-Body Database Browser: 1412 Lagrula (1937 BA)" (2015-10-24 last obs.). Jet Propulsion Laboratory. Retrieved 27 April 2016.
- 1 2 Schmadel, Lutz D. (2003). Dictionary of Minor Planet Names – (1412) Lagrula. Springer Berlin Heidelberg. p. 114. ISBN 978-3-540-29925-7. Retrieved 20 November 2015.
- 1 2 3 4 "LCDB Data for (1412) Lagrula". Asteroid Lightcurve Database (LCDB). Retrieved 20 November 2015.
- 1 2 3 4 5 Casalnuovo, Giovanni Battista (October 2013). "Lightcurve Photometry, H-G Parameters and Estimated Diameter for 1412 Lagrula". The Minor Planet Bulletin. 40 (4): 188. Bibcode:2013MPBu...40..188C. ISSN 1052-8091. Retrieved 20 November 2015.
- 1 2 3 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 20 November 2015. - ↑ "1412 Lagrula (1937 BA)". Minor Planet Center. Retrieved 20 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
- 1412 Lagrula at the JPL Small-Body Database
