_Celuta.png) 3D convex shape model of 186 Celuta | |
| Discovery | |
|---|---|
| Discovered by | P. M. Henry, 1878 |
| Discovery date | 6 April 1878 |
| Designations | |
| MPC designation | (186) Celuta |
| Pronunciation | /sɛˈluːtə/ |
| Alternative designations | A878 GA; 1954 FD |
| Minor planet category | Main belt |
| Orbital characteristics | |
| Epoch 31 July 2016 (JD 2457600.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 132.36 yr (48343 d) |
| Aphelion | 2.7152 AU (406.19 Gm) |
| Perihelion | 2.0084 AU (300.45 Gm) |
| Semi-major axis | 2.3618 AU (353.32 Gm) |
| Eccentricity | 0.14964 |
| Orbital period (sidereal) | 3.63 yr (1325.8 d) |
| Mean anomaly | 275.22° |
| Mean motion | 0° 16 17.544 / day |
| Inclination | 13.185° |
| Longitude of ascending node | 14.769° |
| Argument of perihelion | 315.65° |
| Earth MOID | 1.01999 AU (152.588 Gm) |
| Jupiter MOID | 2.71546 AU (406.227 Gm) |
| TJupiter | 3.500 |
| Physical characteristics | |
| Dimensions | 49.99±1.6 km |
| Synodic rotation period | 19.842 h (0.8268 d) |
| Geometric albedo | 0.1929±0.013 |
| Spectral type | SK |
| Absolute magnitude (H) | 8.91 |
186 Celuta is a 50 km Main belt asteroid. It was discovered by the French astronomers Paul Henry and Prosper Henry on April 6, 1878. This was the last discovery credited to the Prosper brothers. It is classified as an S-type asteroid.
The asteroid is named after Céluta, a female character in two works of fiction by François-René de Chateaubriand, Atala (1801) and René (1802). The Henry brothers had already named another of their discoveries, 152 Atala, after the heroine of Atala. Both Atala and Céluta are American Indian fictional characters.
Photometric observations of this asteroid at the Organ Mesa Observatory in Las Cruces, New Mexico during 2010 gave a light curve with a period of 19.842 ± 0.001 hours and a brightness variation of 0.54 ± 0.02 in magnitude.
References
- ^ "186 Celuta", JPL Small-Body Database Browser, NASA Jet Propulsion Laboratory, retrieved 12 May 2016
- ^ Pilcher, Frederick (April 2011), "Rotation Period Determinations for 25 Phocaea, 140 Siwa, 149 Medusa 186 Celuta, 475 Ocllo, 574 Reginhild, and 603 Timandra", The Minor Planet Bulletin, vol. 38, no. 2, pp. 76–78, Bibcode:2011MPBu...38...76P.
- Schmadel, Lutz D.; International Astronomical Union (2012). Dictionary of minor planet names (6th ed.). Berlin; New York: Springer-Verlag. p. 29. ISBN 9783642297182. Retrieved 4 April 2014.
- Chateaubriand, François-René (1801). Atala.; Chateaubriand, François-René (1802). René.
External links
- 186 Celuta at AstDyS-2, Asteroids—Dynamic Site
- 186 Celuta at the JPL Small-Body Database
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