1412 Lagrula
| Discovery | |
|---|---|
| Discovered by | L. Boyer |
| Discovery site | Algiers Obs. |
| Discovery date | 19 January 1937 |
| Designations | |
| MPC designation | 1412 Lagrula |
|
Named after
|
Philippe Lagrula (astronomer) |
| 1937 BA · 1929 US 1962 XM |
|
| main-belt · Flora | |
| Orbital characteristics | |
| Epoch 16 February 2017 (JD 2457800.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 86.64 yr (31,644 days) |
| Aphelion | 2.4645 AU |
| Perihelion | 1.9648 AU |
| 2.2147 AU | |
| Eccentricity | 0.1128 |
| 3.30 yr (1,204 days) | |
| 145.58° | |
| 0° 17m 56.4s / day | |
| Inclination | 4.7178° |
| 66.118° | |
| 14.052° | |
| Physical characteristics | |
| Dimensions |
7.78±1.36 km 7.806±0.075 km 9.068±0.047 km 23±3 km 23.98 km (calculated) |
|
5.882±0.001 h 5.9176±0.0001 h |
|
| 0.058 (assumed) 0.06 0.2378±0.0284 0.318±0.044 0.36±0.14 |
|
| S | |
| 11.81±0.04 · 12.3 · 12.4 · 12.62 · 12.73±0.75 | |
1412 Lagrula, provisional designation 1937 BA, is an asteroid from the inner regions of the asteroid belt, which measures approximately 7 or 23 kilometers in diameter, depending on its stony or carbonaceous classification, respectively. It was discovered on 19 January 1937, by French astronomer Louis Boyer at the North African Algiers Observatory in Algeria.
Lagrula is a presumed 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 has an eccentricity of 0.11 and an inclination of 5° with respect to the ecliptic. First identified as 1929 US with a precovery taken at Lowell Observatory in 1929, the body's observation arc was extended by 8 years prior to its official discovery observation at Algiers.
During March and April 2013, photometric observations of Lagrula were made over ten nights by Italian astronomer Giovanni Casalnuovo at Eurac Observatory (C62) in Bolzano, Italy. Light-curve analysis gave a rotation period of 5.9176 hours and a brightness variation of 0.28 magnitude (U=2+). In January 2016, a more refined period of 5.882 hours with an amplitude of 0.44 magnitude was obtained from a bimodal light-curve by Spanish astronomer group OBAS, Observadores de Asteroides (U=3).
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