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] | |
| Orbital characteristics [1] | |
| Epoch 31 July 2016 (JD 2457600.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 67.10 yr (24509 days) |
| Aphelion | 3.1062 AU (464.68 Gm) |
| Perihelion | 2.5868 AU (386.98 Gm) |
| 2.8465 AU (425.83 Gm) | |
| Eccentricity | 0.091238 |
| 4.80 yr (1754.2 d) | |
| 345.50° | |
| 0° 12m 18.828s / day | |
| Inclination | 11.813° |
| 158.64° | |
| 52.156° | |
| Earth MOID | 1.60208 AU (239.668 Gm) |
| Jupiter MOID | 1.89998 AU (284.233 Gm) |
| Jupiter Tisserand parameter | 3.270 |
| Physical characteristics | |
| Dimensions | 12–30 km (conversion)[3] |
| 8.02272 h (0.334280 d) | |
| 11.7[1] | |
|
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1597 Laugier, provisional designation 1949 EB, is an asteroid from the outer region of the asteroid belt. It was discovered by French astronomer Louis Boyer at the north African Algiers Observatory in Algeria, on 7 March 1949.[4]
The asteroid orbits the Sun at a distance of 2.6–3.1 AU once every 4 years and 10 months (1,752 days). Its orbit shows an eccentricity of 0.09 and is tilted by 12 degrees to the plane of the ecliptic.[1]
Little is known about the asteroids size, composition, albedo and rotation, despite having a well-observed orbit with the lowest possible uncertainty – which is denoted by a condition code of 0 – and an observation arc that spans over a period of more than 60 years.[1] With an absolute magnitude of 11.7, the asteroid's diameter could be anywhere between 12 and 30 kilometers for an assumed albedo in the range of 0.05–0.25 (see NASA's conversion table).[3] Since outer main-belt asteroids typically have a spectral type of a darker carbonaceous, rather than a brighter rocky body, its true diameter may be at the upper end of NASA's generic conversion table, as an object's diameter increases, when its albedo decreases, for a given absolute magnitude.[3]
The minor planet was probably named after French astronomer and asteroid discoverer Marguerite Laugier (1896–1976), but possibly (also) after French astronomer Paul Auguste Ernest Laugier (1812–1872).[2]
References
- 1 2 3 4 5 6 "JPL Small-Body Database Browser: 1597 Laugier (1949 EB)" (2015-02-22 last obs.). Jet Propulsion Laboratory. Retrieved 25 April 2016.
- 1 2 Schmadel, Lutz D. (2003). Dictionary of Minor Planet Names – (1597) Laugier. Springer Berlin Heidelberg. p. 126. ISBN 978-3-540-29925-7. Retrieved November 2015.
- 1 2 3 "Absolute Magnitude (H)". NASA/JPL. Retrieved 2014-06-28.
- ↑ "1597 Laugier (1949 EB)". Minor Planet Center. Retrieved 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
- 1597 Laugier at the JPL Small-Body Database
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