2022 West

Last updated

2022 West
Discovery  [1]
Discovered by K. Reinmuth
Discovery site Heidelberg Obs.
Discovery date7 February 1938
Designations
(2022) West
Named after
 Richard M. West
(Danish astronomer) [2]
1938 CK ·1949 TA
1973 AP
main-belt  ·(middle)
Orbital characteristics   [1]
Epoch 4 September 2017 (JD 2458000.5)
Uncertainty parameter 0
Observation arc 79.12 yr (28,897 days)
Aphelion 3.0268 AU
Perihelion 2.3840 AU
2.7054 AU
Eccentricity 0.1188
4.45 yr (1,625 days)
61.733°
0° 13m 17.4s / day
Inclination 5.6594°
2.5076°
37.063°
Physical characteristics
Dimensions 11.04±0.83 km [3]
12.634±0.341 km [4]
12.916±0.133 km [5]
26.64 km (calculated) [6]
14.14±0.01 h [7]
0.057 (assumed) [6]
0.1682±0.0207 [5]
0.175±0.043 [4]
0.230±0.036 [3]
SMASS = S   [1]  · C   [6]
11.6 [1] [6]  ·11.63±0.05 [7]  ·11.70±0.19 [8]  ·12.0 [3] [5]

    2022 West, provisional designation 1938 CK, is a stony asteroid from the middle regions of the asteroid belt, approximately 12 kilometers in diameter. It was discovered by German astronomer Karl Reinmuth at Heidelberg Observatory on 7 February 1938. [9] The asteroid was named after Danish astronomer Richard M. West. [2]

    Contents

    Classification and orbit

    West orbits the Sun in the central main-belt at a distance of 2.4–3.0  AU once every 4 years and 5 months (1,625 days). Its orbit has an eccentricity of 0.12 and an inclination of 6° with respect to the ecliptic. [1] The asteroid observation arc begins at Heidelberg one month after its official discovery observation in March 1938. [9]

    Physical characteristics

    In the SMASS classification, West is a common S-type asteroid. [1]

    Lightcurves

    In November 2016, a first rotational lightcurve of West was obtained from photometric observations by Italian astronomers. Lightcurve analysis gave a rotation period of 14.14 hours with a brightness variation of 0.50 magnitude ( U=3- ). [7]

    Diameter

    According to the surveys carried out by the Japanese Akari satellite and the NEOWISE mission of NASA's Wide-field Infrared Survey Explorer, West measures between 11.04 and 12.916 kilometers in diameter and its surface has an albedo between 0.1682 and 0.23. [3] [4] [5]

    The Collaborative Asteroid Lightcurve Link assumes a standard albedo for carbonaceous asteroids of 0.057 and consequently calculates a much larger diameter of 26.64 kilometers using an absolute magnitude of 11.6. [6]

    Naming

    This minor planet was named after Danish astronomer Richard Martin West (born 1941), an observer and discoverer of minor planets at the European Southern Observatory in La Silla. West also discovered 76P/West–Kohoutek–Ikemura, a bright comet of the Jupiter family. He also was the International Astronomical Union's general secretary (1982–1985) and president of its Commission XX (1988–1991). [2] The official naming citation was published by the Minor Planet Center on 1 April 1978 ( M.P.C. 4359). [10]

    Related Research Articles

    997 Priska, provisional designation 1923 NR, is a carbonaceous Adeonian asteroid from the central regions of the asteroid belt, approximately 19 kilometers in diameter. It was discovered on 12 July 1923, by astronomer Karl Reinmuth at the Heidelberg-Königstuhl State Observatory in southwest Germany. The asteroid's name is a common German female name, unrelated to the discoverer's contemporaries.

    2023 Asaph, provisional designation 1952 SA, is a dark asteroid from the outer regions of the asteroid belt, approximately 21 kilometers in diameter. It was discovered on 16 September 1952, by astronomers of the Indiana Asteroid Program at Goethe Link Observatory in Indiana, United States.

    Lagrangea, provisional designation 1923 OU, is a carbonaceous background asteroid from the outer region of the asteroid belt, approximately 30 kilometers in diameter. It was discovered on 12 September 1923, by Russian astronomer Sergey Belyavsky at the Simeiz Observatory on the Crimean peninsula. The asteroid was named after Italian mathematician and astronomer Joseph-Louis Lagrange.

    1014 Semphyra, provisional designation 1924 PW, is a background asteroid from the central regions of the asteroid belt, approximately 17 kilometers in diameter. It was discovered on 29 January 1924, by German astronomer Karl Reinmuth at the Heidelberg Observatory in southwest Germany. The asteroid was named after the character "Semphyra" in a poem by Aleksandr Pushkin.

    1462 Zamenhof, provisional designation 1938 CA, is a carbonaceous Themistian asteroid from the outer regions of the asteroid belt, approximately 27 kilometers in diameter. It was discovered on 6 February 1938, by Finnish astronomer Yrjö Väisälä at the Iso-Heikkilä Observatory in Finland. The asteroid was named after L. L. Zamenhof, the creator of Esperanto. It is a recognized Zamenhof-Esperanto object.

    1159 Granada, provisional designation 1929 RD, is a dark background asteroid and relatively slow rotator from the inner regions of the asteroid belt, approximately 30 kilometers in diameter. It was discovered on 2 September 1929, by astronomer Karl Reinmuth at the Heidelberg Observatory in southwest Germany. The asteroid was named for the Spanish city and province of Granada.

    <span class="mw-page-title-main">1555 Dejan</span> Asteroid from the background population of the central regions of the asteroid belt

    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.

    1541 Estonia, provisional designation 1939 CK, is an asteroid from the central regions of the asteroid belt, approximately 21 kilometers in diameter. It was discovered on 12 February 1939, by astronomer Yrjö Väisälä at the Iso-Heikkilä Observatory near Turku, Finland. The asteroid was named after the Baltic country of Estonia.

    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.

    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.

    2658 Gingerich, provisional designation 1980 CK, is a background asteroid and a suspected synchronous binary system from the outer regions of the asteroid belt, approximately 13 kilometers in diameter. It was discovered on 13 February 1980, by astronomers of the Harvard College Observatory at the George R. Agassiz Station near Harvard, Massachusetts, in the United States. The presumed carbonaceous C-type asteroid has a short rotation period of 2.9 hours. It was named after Harvard astronomer Owen Gingerich.

    2016 Heinemann, provisional designation 1938 SE, is a carbonaceous Themistian asteroid from the outer regions of the asteroid belt, approximately 22 kilometers in diameter. It was discovered on 18 September 1938, by German astronomer Alfred Bohrmann at Heidelberg Observatory in southwest Germany, and later named after ARI-astronomer Karl Heinemann (1898–1970).

    2173 Maresjev, provisional designation 1974 QG1, is a dark background asteroid from the outer regions of the asteroid belt, approximately 28 kilometers (17 miles) in diameter. It was discovered on 22 August 1974, by Soviet–Ukrainian astronomer Lyudmila Zhuravleva at the Crimean Astrophysical Observatory in Nauchnij, on the Crimean peninsula. It was named for Soviet war veteran Alexey Maresyev. The assumed C-type asteroid has a tentative rotation period of 11.6 hours.

    <span class="mw-page-title-main">1607 Mavis</span> Stony asteroid

    1607 Mavis, provisional designation 1950 RA, is a stony asteroid from the central region of the asteroid belt, approximately 12 kilometers in diameter. It was discovered on 3 September 1950, by South African astronomer Ernest Johnson at Johannesburg Observatory in South Africa. It was later named after the wife of astronomer Jacobus Bruwer.

    <span class="mw-page-title-main">1206 Numerowia</span> Main-belt asteroid

    1206 Numerowia is an asteroid from the outer region of the asteroid belt, approximately 15 kilometers in diameter. It was discovered by German astronomer Karl Reinmuth at Heidelberg Observatory in southwest Germany on 18 October 1931, and named after Russian astronomer Boris Numerov.

    2169 Taiwan, provisional designation 1964 VP1, is a carbonaceous Astridian asteroid from the central regions of the asteroid belt, approximately 17 kilometers in diameter. It was discovered on 9 November 1964, by astronomers at the Purple Mountain Observatory near Nanking, China. It was named for Taiwan.

    1447 Utra, provisional designation 1938 BB, is a stony asteroid, slow rotator and suspected tumbler from the central region of the asteroid belt, approximately 12 kilometers in diameter. It was discovered on 26 January 1938, by Finnish astronomer Yrjö Väisälä at Turku Observatory in Southwest Finland. The asteroid was named for the Finnish town of Utra.

    1257 Móra, provisional designation 1932 PE, is an asteroid from the inner regions of the asteroid belt, approximately 15 kilometers in diameter. It was discovered on 8 August 1932, by German astronomer Karl Reinmuth at Heidelberg Observatory in southwest Germany. The asteroid was named after Hungarian astronomer Károly Móra.

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

    2058 Róka, provisional designation 1938 BH, is a Themistian asteroid from the outer regions of the asteroid belt, approximately 22 kilometers in diameter.

    References

    1. 1 2 3 4 5 6 "JPL Small-Body Database Browser: 2022 West (1938 CK)" (2017-03-21 last obs.). Jet Propulsion Laboratory . Retrieved 4 July 2017.
    2. 1 2 3 Schmadel, Lutz D. (2007). "(2022) West". Dictionary of Minor Planet Names – (2022) West. Springer Berlin Heidelberg. p. 164. doi:10.1007/978-3-540-29925-7_2023. ISBN   978-3-540-00238-3.
    3. 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)
    4. 1 2 3 Masiero, Joseph R.; Mainzer, A. K.; Grav, T.; Bauer, J. M.; Cutri, R. M.; Dailey, J.; et al. (November 2011). "Main Belt Asteroids with WISE/NEOWISE. I. Preliminary Albedos and Diameters". The Astrophysical Journal. 741 (2): 20. arXiv: 1109.4096 . Bibcode:2011ApJ...741...68M. doi:10.1088/0004-637X/741/2/68 . Retrieved 4 July 2017.
    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.
    6. 1 2 3 4 5 "LCDB Data for (2022) West". Asteroid Lightcurve Database (LCDB). Retrieved 4 July 2017.
    7. 1 2 3 Franco, Lorenzo; Marchini, Alessandro (April 2017). "Rotation Periods for 1751 Herget, 2022 West and (23997) 1999 RW27". The Minor Planet Bulletin. 44 (2): 93–94. Bibcode:2017MPBu...44...93F. ISSN   1052-8091 . Retrieved 4 July 2017.
    8. ↑ 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 4 July 2017.
    9. 1 2 "2022 West (1938 CK)". Minor Planet Center. Retrieved 4 July 2017.
    10. ↑ Schmadel, Lutz D. (2009). "Appendix – Publication Dates of the MPCs". Dictionary of Minor Planet Names – Addendum to Fifth Edition (2006–2008) . Springer Berlin Heidelberg. p.  221. doi:10.1007/978-3-642-01965-4. ISBN   978-3-642-01964-7.


    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.