1213 Algeria

Last updated

1213 Algeria
Discovery [1]
Discovered by G. Reiss
Discovery site Algiers Obs.
Discovery date5 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
Dimensions29.175±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.

    Contents

    Discovery

    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]

    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 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]

    Diameter and albedo

    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]

    Naming

    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]

    Related Research Articles

    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.

    Athalia, provisional designation 1903 ME, is a carbonaceous Themistian asteroid from the outer regions of the asteroid belt, approximately 40 kilometers in diameter. It was discovered on 20 September 1903, by German astronomer Max Wolf at the Heidelberg Observatory in southwest Germany. The asteroid was named after the ancient Judahite queen Athaliah.

    Arago, provisional designation 1923 OT, is a dark asteroid from the outer regions of the asteroid belt, approximately 55 kilometers in diameter. It was discovered on 5 September 1923, by Russian astronomer Sergey Belyavsky at the Simeiz Observatory on the Crimean peninsula. The asteroid was named after French mathematician François Arago.

    La Paz, provisional designation 1923 PD, is a carbonaceous asteroid from the outer region of the asteroid belt, approximately 40 kilometers in diameter. It was discovered on 31 October 1923, by German astronomer Max Wolf at the Heidelberg-Königstuhl State Observatory and named after the city La Paz in Bolivia.

    <span class="mw-page-title-main">1039 Sonneberga</span> Asteroid

    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.

    <span class="mw-page-title-main">1118 Hanskya</span> Asteroid

    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.

    <span class="mw-page-title-main">1132 Hollandia</span> Asteroid

    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.

    <span class="mw-page-title-main">1333 Cevenola</span>

    1333 Cevenola, provisional designation 1934 DA, is a binary Eunomian asteroid from the asteroid belt, approximately 15 kilometers in diameter. It was discovered on 20 February 1934, by French astronomer Odette Bancilhon at Algiers Observatory, Algeria in Northern Africa. It was named after the French mountain-range Cévennes, via the Occitan feminine adjective/demonym cevenòla.

    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.

    <span class="mw-page-title-main">1241 Dysona</span>

    1241 Dysona, provisional designation 1932 EB1, is a dark background asteroid from the outer regions of the asteroid belt, approximately 77 kilometers in diameter. It was discovered on 4 March 1932, by English astronomer Harry Edwin Wood at the Union Observatory in Johannesburg, South Africa. The asteroid was named after English astronomer Frank Watson Dyson.

    4282 Endate, provisional designation 1987 UQ1, is an asteroid from the inner regions of the asteroid belt, approximately 10 kilometers in diameter. It was discovered on 28 October 1987, by Japanese astronomers Seiji Ueda and Hiroshi Kaneda at Kushiro Observatory (399) in Japan. It was named for amateur astronomer Kin Endate.

    2126 Gerasimovich, provisional designation 1970 QZ, is a stony background asteroid from the inner regions of the asteroid belt, approximately 8 kilometers in diameter. It was discovered on 30 August 1970, by Soviet astronomer Tamara Smirnova at the Crimean Astrophysical Observatory in Nauchnyj, on the Crimean peninsula. The asteroid was named after Russian astronomer Boris Gerasimovich.

    2324 Janice, provisional designation 1978 VS4, is a dark background asteroid from the outer regions of the asteroid belt, approximately 25 kilometers (16 miles) in diameter. It was discovered on 7 November 1978, by American astronomers Eleanor Helin and Schelte Bus at the Palomar Observatory in California. The asteroid was named for Janice Cline at Caltech. The presumably C-type asteroid has a rotation period of 23.2 hours.

    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.

    <span class="mw-page-title-main">1424 Sundmania</span> Large asteroid and rather slow rotator

    1424 Sundmania is a large asteroid and rather slow rotator from the background population of the outer regions of the asteroid belt. It was discovered on 9 January 1937, by astronomer Yrjö Väisälä at the Turku Observatory in southwest Finland. The dark X-type asteroid has a notably long rotation period of 93.7 hours and measures approximately 70 kilometers in diameter. It was named after Finnish astronomer and mathematician Karl F. Sundman.

    2013 Tucapel, provisional designation 1971 UH4, is an eccentric Florian asteroid from the inner regions of the asteroid belt, approximately 11 kilometers in diameter. It was discovered on 22 October 1971, by the University of Chile's National Astronomical Observatory at Cerro El Roble Astronomical Station. It was named for one of the indigenous Mapuche chiefs.

    <span class="mw-page-title-main">2120 Tyumenia</span> Dark background asteroid

    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.

    1466 Mündleria, provisional designation 1938 KA, is a carbonaceous asteroid from the inner regions of the asteroid belt, approximately 22 kilometers in diameter.

    References

    1. 1 2 3 "JPL Small-Body Database Browser: 1213 Algeria (1931 XD)" (2016-05-26 last obs.). Jet Propulsion Laboratory . Retrieved 1 December 2016.
    2. 1 2 3 Schmadel, Lutz D. (2007). "(1213) Algeria". Dictionary of Minor Planet Names – (1213) Algeria. Springer Berlin Heidelberg. p. 101. doi:10.1007/978-3-540-29925-7_1214. ISBN   978-3-540-00238-3.
    3. 1 2 3 4 5 6 "LCDB Data for (1213) Algeria". Asteroid Lightcurve Database (LCDB). Retrieved 15 May 2016.
    4. 1 2 3 Masiero, Joseph R.; Grav, T.; Mainzer, A. K.; Nugent, C. R.; Bauer, J. M.; Stevenson, R.; et al. (August 2014). "Main-belt Asteroids with WISE/NEOWISE: Near-infrared Albedos". The Astrophysical Journal. 791 (2): 11. arXiv: 1406.6645 . Bibcode:2014ApJ...791..121M. doi:10.1088/0004-637X/791/2/121 . Retrieved 1 December 2016.
    5. 1 2 3 4 Mainzer, A.; Grav, T.; Masiero, J.; Hand, E.; Bauer, J.; Tholen, D.; et al. (November 2011). "NEOWISE Studies of Spectrophotometrically Classified Asteroids: Preliminary Results". The Astrophysical Journal. 741 (2): 25. arXiv: 1109.6407 . Bibcode:2011ApJ...741...90M. doi:10.1088/0004-637X/741/2/90 . Retrieved 15 May 2016.
    6. 1 2 3 Alí-Lagoa, V.; Licandro, J.; Gil-Hutton, R.; Cañ; ada-Assandri, M.; Delbo', M.; et al. (June 2016). "Differences between the Pallas collisional family and similarly sized B-type asteroids". Astronomy and Astrophysics. 591: 11. Bibcode:2016A&A...591A..14A. doi: 10.1051/0004-6361/201527660 . hdl: 11336/63614 . Retrieved 1 December 2016.
    7. 1 2 3 4 Alí-Lagoa, V.; de León, J.; Licandro, J.; Delbó, M.; Campins, H.; Pinilla-Alonso, N.; et al. (June 2013). "Physical properties of B-type asteroids from WISE data". Astronomy & Astrophysics. 554: 16. arXiv: 1303.5487 . Bibcode:2013A&A...554A..71A. doi:10.1051/0004-6361/201220680 . Retrieved 23 November 2015.
    8. 1 2 3 4 Tedesco, E. F.; Noah, P. V.; Noah, M.; Price, S. D. (October 2004). "IRAS Minor Planet Survey V6.0". NASA Planetary Data System – IRAS-A-FPA-3-RDR-IMPS-V6.0. Bibcode:2004PDSS...12.....T . Retrieved 15 June 2018.
    9. 1 2 3 4 Masiero, Joseph R.; Mainzer, A. K.; Grav, T.; Bauer, J. M.; Cutri, R. M.; Nugent, C.; et al. (November 2012). "Preliminary Analysis of WISE/NEOWISE 3-Band Cryogenic and Post-cryogenic Observations of Main Belt Asteroids". The Astrophysical Journal Letters. 759 (1): 5. arXiv: 1209.5794 . Bibcode:2012ApJ...759L...8M. doi:10.1088/2041-8205/759/1/L8 . Retrieved 15 May 2016.
    10. 1 2 3 4 Usui, Fumihiko; Kuroda, Daisuke; Müller, Thomas G.; Hasegawa, Sunao; Ishiguro, Masateru; Ootsubo, Takafumi; et al. (October 2011). "Asteroid Catalog Using Akari: AKARI/IRC Mid-Infrared Asteroid Survey". Publications of the Astronomical Society of Japan. 63 (5): 1117–1138. Bibcode:2011PASJ...63.1117U. doi:10.1093/pasj/63.5.1117. (online, AcuA catalog p. 153)
    11. 1 2 Behrend, Raoul. "Asteroids and comets rotation curves – (1213) Algeria". Geneva Observatory . Retrieved 15 May 2016.
    12. ↑ Veres, Peter; Jedicke, Robert; Fitzsimmons, Alan; Denneau, Larry; Granvik, Mikael; Bolin, Bryce; et al. (November 2015). "Absolute magnitudes and slope parameters for 250,000 asteroids observed by Pan-STARRS PS1 - Preliminary results". Icarus. 261: 34–47. arXiv: 1506.00762 . Bibcode:2015Icar..261...34V. doi:10.1016/j.icarus.2015.08.007 . Retrieved 15 May 2016.
    13. 1 2 "1213 Algeria (1931 XD)". Minor Planet Center. Retrieved 15 May 2016.
    This page is based on this Wikipedia article
    Text is available under the CC BY-SA 4.0 license; additional terms may apply.
    Images, videos and audio are available under their respective licenses.