1412 Lagrula

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1412 Lagrula
Discovery [1]
Discovered by L. Boyer
Discovery site Algiers Observatory
Discovery date 19 January 1937
MPC designation 1412 Lagrula
Named after
Philippe Lagrula
1937 BA · 1929 US
1962 XM
main-belt · Flora[3]
Orbital characteristics[1]
Epoch 27 June 2015 (JD 2457200.5)
Uncertainty parameter 0
Observation arc 85.99 yr (31,408 days)
Aphelion 2.4630 AU
Perihelion 1.9660 AU
2.2145 AU
Eccentricity 0.1122
3.30 yr (1,204 days)
Inclination 4.7168°
Physical characteristics
Dimensions 23±3 km[4]
9.068±0.047 km[5]
23.98 km (caculated)[3]
5.9176 h[4]
0.058 (assumed)[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]


  1. ^ a b "JPL Small-Body Database Browser: 1412 Lagrula (1937 BA)" (2015-10-24 last obs.). Jet Propulsion Laboratory. Retrieved November 2015. 
  2. ^ a b Schmadel, Lutz D. (2003). Dictionary of Minor Planet Names – (1412) Lagrula. Springer Berlin Heidelberg. p. 114. ISBN 978-3-540-29925-7. Retrieved November 2015. 
  3. ^ a b c d "LCDB Data for (1412) Lagrula". Asteroid Lightcurve Database (LCDB). Retrieved November 2015. 
  4. ^ a b c d e Casalnuovo, Giovanni Battista (October 2013). "Lightcurve Photometry, H-G Parameters and Estimated Diameter for 1412 Lagrula". Bulletin of the Minor Planets (Section of the Association of Lunar and Planetary Observers) 40 (4): 188. Bibcode:2013MPBu...40..188C. ISSN 1052-8091. Retrieved November 2015. 
  5. ^ a b c Mainzer, A.; Grav, T.; Masiero, J.; Hand, E.; Bauer, J.; Tholen, D.; McMillan, R. S.; Spahr, T.; Cutri, R. M.; Wright, E.; Watkins, J.; Mo, W.; Maleszewski, C. (November 2011). "NEOWISE Studies of Spectrophotometrically Classified Asteroids: Preliminary Results". The Astrophysical Journal 741 (2): 25. Bibcode:2011ApJ...741...90M. doi:10.1088/0004-637X/741/2/90. Retrieved November 2015. 
  6. ^ "1412 Lagrula (1937 BA)". Minor Planet Center. Retrieved November 2015. 

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