Discovery [1] | |
---|---|
Discovered by | G. Reiss |
Discovery site | Algiers Obs. |
Discovery date | 5 December 1931 |
Designations | |
(1213) Algeria | |
Named after | Algeria (country) [2] |
1931 XD | |
main-belt ·(outer) [3] | |
Orbital characteristics | |
Epoch 16 February 2017 (JD 2457800.5) | |
Uncertainty parameter 0 | |
Observation arc | 84.53 yr (30,873 days) |
Aphelion | 3.5408 AU |
Perihelion | 2.7442 AU |
3.1425 AU | |
Eccentricity | 0.1267 |
5.57 yr (2,035 days) | |
168.11° | |
0° 10m 36.84s / day | |
Inclination | 13.064° |
271.54° | |
108.60° | |
Physical characteristics | |
Dimensions | 29.175±0.251 [4] 30.189±0.239 km [5] 30.6±3.1 km [6] 31±3 km [7] 33.08 km (derived) [3] 33.20±4.7 km (IRAS:3) [8] 33.51±0.78 km [9] 34.46±0.67 km [10] |
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 (provisional designation 1931 XD) is a carbonaceous asteroid from the outer region of the asteroid belt, approximately 32 kilometers in diameter. Discovered by Guy Reiss at Algiers Observatory in 1931, it was named after the North African country of Algeria.
Algeria was discovered by French astronomer Guy Reiss at the North African 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]
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]
A rotational lightcurve of Algeria was obtained from photometric observations made by French amateur astronomer Claudine Rinner in August 2002. Lightcurve analysis gave a rotation period of 16 hours with a brightness variation of 0.19 magnitude ( U=2 ). [11]
According to the space-based surveys carried out by the Infrared Astronomical Satellite IRAS, the Japanese Akari satellite, and NASA's Wide-field Infrared Survey Explorer with its subsequent NEOWISE mission, Algeria measures between 29.2 and 34.5 kilometers in diameter and its surface has an albedo in the range of 0.057 to 0.093. [4] [5] [7] [9] [8] [10]
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]
This minor planet was named in honour of the North African country Algeria, location of the discovering observatory and a French colony at the time. The official naming citation was mentioned in The Names of the Minor Planets by Paul Herget in 1955 ( H 112 ). [2]
4349 Tibúrcio, provisional designation 1989 LX, is a dark asteroid from the central region of the asteroid belt, approximately 29 kilometers in diameter. It was discovered on 5 June 1989, by German astronomer Werner Landgraf at ESO's La Silla Observatory in northern Chile.
1743 Schmidt, provisional designation 4109 P-L, is a dark background asteroid from the inner regions of the asteroid belt, approximately 19 kilometers in diameter. It was discovered during the Palomar–Leiden survey on 24 September 1960, by astronomers Ingrid and Cornelis van Houten at Leiden, on photographic plates taken by Tom Gehrels at Palomar Observatory in California. The C-type asteroid has a rotation period of 17.5 hours. It was named for the optician Bernhard Schmidt.
Pawlowia, provisional designation 1923 OX, is a background asteroid from the central regions of the asteroid belt, approximately 20 kilometers in diameter. It was discovered on 5 October 1923, by Soviet astronomer Vladimir Albitsky at the Simeiz Observatory on the Crimean peninsula. The asteroid was named after Russian physiologist and Nobelist Ivan Pavlov.
1039 Sonneberga, provisional designation 1924 TL, is a dark background asteroid, approximately 34 kilometers in diameter, located in the central region of the asteroid belt. It was discovered on 24 November 1924, by German astronomer Max Wolf at Heidelberg Observatory in southwest Germany. The asteroid was named for the German city of Sonneberg, where the Sonneberg Observatory is located.
1118 Hanskya is a large background asteroid, approximately 77 kilometers in diameter, located in the outer regions of the asteroid belt. Discovered by Sergey Belyavsky and Nikolaj Ivanov in 1927, it was named after Russian astronomer Aleksey Hansky. The presumed dark C-type asteroid has a rotation period of 15.6 hours.
1132 Hollandia, provisional designation 1929 RB1, is a stony asteroid from the middle region of the asteroid belt, approximately 27 kilometers in diameter. It was discovered on 13 September 1929, by Dutch astronomer Hendrik van Gent at Leiden Southern Station, annex to the Johannesburg Observatory in South Africa. It was named for the region Holland in the Netherlands.
6349 Acapulco, provisional designation 1995 CN1, is a dark Adeonian asteroid from the middle region of the asteroid belt, approximately 22 kilometers in diameter.
1815 Beethoven, provisional designation 1932 CE1, is a carbonaceous background asteroid from the outer regions of the asteroid belt, approximately 30 kilometers (19 miles) in diameter. It was discovered on 27 January 1932, by German astronomer Karl Reinmuth at the Heidelberg Observatory. The uncommon F-type asteroid seems to have a long rotation period of 54 hours (tentative). It was named after Ludwig van Beethoven.
1215 Boyer, provisional designation 1932 BA, is a stony Eunomian asteroid from the central region of the asteroid belt, approximately 20 kilometers in diameter. It was discovered by astronomer Alfred Schmitt in 1932, who named it after French astronomer and college Louis Boyer.
1295 Deflotte, provisional designation 1933 WD, is a carbonaceous asteroid from the outer regions of the asteroid belt, approximately 48 kilometers in diameter. It was discovered on 25 November 1933, by French astronomer Louis Boyer at the Algiers Observatory in Algeria, North Africa. The asteroid was named after the discoverer's nephew.
1555 Dejan, provisional designation 1941 SA, is an asteroid from the background population of the central regions of the asteroid belt, approximately 22 kilometers in diameter. It was discovered on 15 September 1941, by Belgian astronomer Fernand Rigaux at the Royal Observatory of Belgium in Uccle. The asteroid was named after Dejan Đurković, son of Serbian astronomer Petar Đurković.
1267 Geertruida, provisional designation 1930 HD, is a carbonaceous background asteroid from the inner regions of the asteroid belt, approximately 20 kilometers in diameter. Discovered by astronomer Hendrik van Gent at Johannesburg Observatory in 1930, the asteroid was later named after Geertruid Pels, sister of Dutch astronomer Gerrit Pels.
1303 Luthera, provisional designation 1928 FP, is a dark asteroid and the parent body of the Luthera family, located in the outermost regions of the asteroid belt. It measures approximately 90 kilometers in diameter. The asteroid was discovered on 16 March 1928, by astronomer Friedrich Schwassmann at the Bergedorf Observatory in Hamburg, Germany, and later named after German astronomer Robert Luther.
1300 Marcelle, provisional designation 1934 CL, is a carbonaceous asteroid from the middle region of the asteroid belt, approximately 30 kilometers in diameter. It was discovered on 10 February 1934, by French astronomer Guy Reiss at the North African Algiers Observatory in Algeria.
2043 Ortutay, provisional designation 1936 TH, is a dark asteroid from the outer regions of the asteroid belt, approximately 45 kilometers in diameter. The asteroid was discovered by Hungarian astronomer György Kulin at the Konkoly Observatory, Budapest, on 12 November 1936. It was named after Hungarian ethnographer Gyula Ortutay.
1416 Renauxa, provisional designation 1937 EC, is an Eon asteroid from the outer regions of the asteroid belt, approximately 29 kilometers in diameter. It was discovered on 4 March 1937, by French astronomer Louis Boyer at the Algiers Observatory in Algeria, North Africa. It was named after Joseph Renaux, an astronomer at the discovering observatory.
1323 Tugela, provisional designation 1934 LD, is a dark background asteroid from the outer regions of the asteroid belt, approximately 60 kilometers in diameter. It was discovered on 19 May 1934, by South African astronomer Cyril Jackson at the Union Observatory in Johannesburg. The asteroid was named for the Tugela River in western South Africa.
2120 Tyumenia is a dark background asteroid, approximately 45 kilometers in diameter, located in the outer regions of the asteroid belt. It was discovered on 9 September 1967, by Soviet astronomer Tamara Smirnova at the Crimean Astrophysical Observatory in Nauchnyj, on the Crimean peninsula. The asteroid was named for the now Russian district of Tyumen Oblast in Western Siberia.
1296 Andrée, provisional designation 1933 WE, is a stony Nysian asteroid from the inner regions of the asteroid belt, approximately 25 kilometers in diameter. It was discovered on 25 November 1933, by French astronomer Louis Boyer at the North African Algiers Observatory, Algeria, and named after the discoverer's niece.
(7563) 1988 BC is a background asteroid from the central region of the asteroid belt, approximately 16 kilometers in diameter. It was discovered on 16 January 1988, by Japanese amateur astronomer Takuo Kojima at the YGCO Chiyoda Station in the Kantō region of Japan. The asteroid has a rotation period of 6.5 hours.