1597 Laugier
| Discovery [1] | |
|---|---|
| Discovered by | L. Boyer |
| Discovery site | Algiers Observatory |
| Discovery date | 7 March 1949 |
| Designations | |
| MPC designation | 1597 Laugier |
Named after |
Marguerite Laugier (astronomer)[2] |
| 1949 EB | |
| main-belt [1] · (outer) [3] | |
| Orbital characteristics [1] | |
| Epoch 31 July 2016 (JD 2457600.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 67.27 yr (24,572 days) |
| Aphelion | 3.1062 AU |
| Perihelion | 2.5868 AU |
| 2.8465 AU | |
| Eccentricity | 0.0912 |
| 4.80 yr (1,754 days) | |
| 345.50° | |
| 0° 12m 18.72s / day | |
| Inclination | 11.813° |
| 158.64° | |
| 52.156° | |
| Physical characteristics | |
| Dimensions | 24.30 km (calculated)[3] |
|
8.0199 h[3] 8.02272 h[4] | |
| 0.057 (assumed)[3] | |
| C [3] | |
|
11.7[1] 11.8[3] | |
|
| |
1597 Laugier, provisional designation 1949 EB, is a carbonaceous asteroid from the outer region of the asteroid belt, approximately 24 kilometers in diameter. It was discovered by French astronomer Louis Boyer at the north African Algiers Observatory in Algeria, on 7 March 1949.[5]
The C-type asteroid orbits the Sun at a distance of 2.6–3.1 AU once every 4 years and 10 months (1,754 days). Its orbit has an eccentricity of 0.09 and an inclination of 12° with respect to the ecliptic.[1] As no precoveries were taken, the asteroid's observation arc begins with its discovery in 1949.[5]
A rotational light-curve for this asteroid from an unpublished source at the Asteroid Light Curve Database gave a well-defined rotation period of 8.0199 hours with a brightness amplitude between 0.68 and 0.71 in magnitude (U=3).[3] A similar period of 8.02272 hours was previously obtained from remodeled data of the Lowell photometric database in March 2016.[1][4]
Based on an absolute magnitude of 11.8, the Collaborative Asteroid Lightcurve Link assumes a standard albedo for carbonaceous asteroids of 0.057 and calculates a diameter of 24.3 kilometers.[3]
The minor planet was named after French astronomer and asteroid discoverer Marguerite Laugier (1896–1976),[2] but possibly (also) after French astronomer Paul Auguste Ernest Laugier (1812–1872). Naming citation was published before November 1977 (M.P.C. 4418).[6]
References
- 1 2 3 4 5 6 "JPL Small-Body Database Browser: 1597 Laugier (1949 EB)" (2016-06-15 last obs.). Jet Propulsion Laboratory. Retrieved 20 July 2016.
- 1 2 Schmadel, Lutz D. (2007). Dictionary of Minor Planet Names – (1597) Laugier. Springer Berlin Heidelberg. p. 126. ISBN 978-3-540-00238-3. Retrieved 20 July 2016.
- 1 2 3 4 5 6 7 8 "LCDB Data for (1597) Laugier". Asteroid Lightcurve Database (LCDB). Retrieved 20 July 2016.
- 1 2 Durech, J.; Hanus, J.; Oszkiewicz, D.; Vanco, R. (March 2016). "Asteroid models from the Lowell photometric database". Astronomy and Astrophysics. 587: 6. arXiv:1601.02909
. Bibcode:2016A&A...587A..48D. doi:10.1051/0004-6361/201527573. Retrieved 20 July 2016. - 1 2 "1597 Laugier (1949 EB)". Minor Planet Center. Retrieved 20 July 2016.
- ↑ "MPC/MPO/MPS Archive". Minor Planet Center. Retrieved 20 July 2016.
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
- 1597 Laugier at the JPL Small-Body Database
