1213 Algeria
| Discovery Synodic rotation period | 16 h[11] | |
|---|---|---|
| 0.057±0.010[9][4] 0.0586 (derived)[3] 0.06±0.01[7] 0.07±0.01[6] 0.076±0.003[10] 0.0767±0.027 (IRAS:3)[8] 0.0934±0.0106[5] | ||
| C[3] | ||
| 10.8[5][8][10] 11.1[1][3][6][7][9] 11.33±0.30[12] | ||
1213 Algeria (
Algiers Observatory in 1931, it was named after the North African country of Algeria
.
Discovery
Algeria was discovered by French astronomer
Algiers Observatory on 5 December 1931.[13] Three nights later, the body was independently discovered by Belgian–American astronomer George Van Biesbroeck at the U.S. Yerkes Observatory in Wisconsin.[2]
A first precovery was taken at Yerkes Observatory, extending the Algeria's observation arc by just 16 days prior to its official discovery observation.[13]
Orbit and classification
The dark asteroid orbits the Sun in the outer main-belt at a distance of 2.7–3.5 AU once every 5 years and 7 months (2,035 days). Its orbit has an eccentricity of 0.13 and an inclination of 13° with respect to the ecliptic.[1]
Physical characteristics
Lightcurve
A rotational
U=2).[11]
Diameter and albedo
According to the space-based surveys carried out by the Infrared Astronomical Satellite
The Collaborative Asteroid Lightcurve Link derives an albedo of 0.059 and a diameter of 33.1 kilometers with an absolute magnitude of 11.1, and characterizes it as a C-type asteroid.[3]
Naming
This
H 112).[2]
References
- ^ a b c "JPL Small-Body Database Browser: 1213 Algeria (1931 XD)" (2016-05-26 last obs.). Jet Propulsion Laboratory. Retrieved 1 December 2016.
- ^ ISBN 978-3-540-00238-3.
- ^ a b c d e f "LCDB Data for (1213) Algeria". Asteroid Lightcurve Database (LCDB). Retrieved 15 May 2016.
- ^ . Retrieved 1 December 2016.
- ^ . Retrieved 15 May 2016.
- ^ hdl:11336/63614. Retrieved 1 December 2016.
- ^ . Retrieved 23 November 2015.
- ^ Bibcode:2004PDSS...12.....T. Retrieved 15 June 2018.
- ^ . Retrieved 15 May 2016.
- ^ )
- ^ a b Behrend, Raoul. "Asteroids and comets rotation curves – (1213) Algeria". Geneva Observatory. Retrieved 15 May 2016.
- . Retrieved 15 May 2016.
- ^ a b "1213 Algeria (1931 XD)". Minor Planet Center. Retrieved 15 May 2016.
External links
- Asteroid Lightcurve Database (LCDB), query form (info Archived 16 December 2017 at the Wayback Machine)
- 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
- 1213 Algeria at AstDyS-2, Asteroids—Dynamic Site
- 1213 Algeria at the JPL Small-Body Database
