1637 Swings
{{Short description|Main-belt asteroid}}
{{Use dmy dates|date=October 2019}}
{{Infobox planet
| minorplanet = yes
| name = 1637 Swings
| background = #D6D6D6
| image = 001637-asteroid shape model (1637) Swings.png
| image_scale =
| caption = Shape model of Swings from its lightcurve
| discovered = 28 August 1936
| discoverer = J. Hunaerts
| discovery_site = Uccle Obs.
| mpc_name = (1637) Swings
| alt_names = 1936 QO{{·}}1907 YT
1934 FL{{·}}1934 FP
1936 SD{{·}}1939 FU
1950 GA
| named_after = Pol Swings {{small|(astrophysicist)}}
| mp_category = main-belt{{·}}{{small|(outer)}}
| epoch = 4 September 2017 (JD 2458000.5)
| uncertainty = 0
| observation_arc = 109.78 yr (40,096 days)
| aphelion = 3.2088 AU
| perihelion = 2.9356 AU
| semimajor = 3.0722 AU
| eccentricity = 0.0445
| period = 5.38 yr (1,967 days)
| mean_anomaly = 123.47°
| mean_motion = {{Deg2DMS|0.1830|sup=ms}} / day
| inclination = 14.068°
| asc_node = 21.288°
| arg_peri = 236.17°
| dimensions = {{val|45.15}} km {{small|(IRAS)}}
{{val|52.994|0.428}} km
| rotation =
| albedo = {{val|0.042|0.004}}
| spectral_type =
}}
1637 Swings, provisional designation {{mp|1936 QO}}, is a dark asteroid from the outer region of the asteroid belt, approximately 50 kilometers in diameter. Discovered by Joseph Hunaerts in 1936, it was named after Belgian astronomer Pol Swings.
Discovery
Swings was discovered on 28 August 1936, by Belgian astronomer Joseph Hunaerts at the Royal Observatory of Belgium in Uccle, Belgium. In the following month, it was independently discovered by astronomer Cyril Jackson at Johannesburg Observatory in South Africa.
Orbit and classification
The asteroid orbits the Sun in the outer main-belt at a distance of 2.9–3.2 AU once every 5 years and 5 months (1,967 days). Its orbit has an eccentricity of 0.04 and an inclination of 14° with respect to the ecliptic. In 1907, Swings was first identified as {{mp|1907 YT}} at Heidelberg Observatory. However, the body's observation arc begins with its official discovery observation at Uccle in 1936.
Physical characteristics
According to the surveys carried out by the Infrared Astronomical Satellite IRAS and NASA's Wide-field Infrared Survey Explorer with its subsequent NEOWISE mission, Swings{{'}} surface has an albedo of 0.042, and measures 45.15 and 52.99 kilometers in diameter, respectively. It has an absolute magnitude of 10.4.
As of 2017, the body's spectral type, rotation period and shape remain unknown.
Naming
This minor planet was named after Pol Swings (1906–1983), a Belgian astrophysicist, astronomer and president of the International Astronomical Union during 1964–1967, who significantly contributed to the understanding of the physics of comets and their spectra. The official {{MoMP|1637|naming citation}} was published by the Minor Planet Center on 20 February 1976 ({{small|M.P.C. 3932}}).
References
{{reflist|refs=
|type = 2017-01-12 last obs.
|title = JPL Small-Body Database Browser: 1637 Swings (1936 QO)
|url = https://ssd.jpl.nasa.gov/sbdb.cgi?sstr=2001637
|publisher = Jet Propulsion Laboratory
|access-date = 6 June 2017}}
|title = Dictionary of Minor Planet Names – (1637) Swings
|last = Schmadel | first = Lutz D.
|publisher = Springer Berlin Heidelberg
|page = 130
|date = 2007
|isbn = 978-3-540-00238-3
|doi = 10.1007/978-3-540-29925-7_1638 |chapter = (1637) Swings }}
|title = 1637 Swings (1936 QO)
|work = Minor Planet Center
|url = https://www.minorplanetcenter.net/db_search/show_object?object_id=1637
|access-date = 27 December 2016}}
|title = Dictionary of Minor Planet Names – Addendum to Fifth Edition (2006–2008)
|year = 2009
|url = https://archive.org/details/dictionaryminorp2008schm
|url-access = limited
|chapter = Appendix – Publication Dates of the MPCs
|last = Schmadel |first=Lutz D.
|publisher = Springer Berlin Heidelberg
|page = [https://archive.org/details/dictionaryminorp2008schm/page/n230 221]
|isbn = 978-3-642-01964-7
|doi = 10.1007/978-3-642-01965-4}}
|first1 = E. F. |last1 = Tedesco
|first2 = P. V. |last2 = Noah
|first3 = M. |last3 = Noah
|first4 = S. D. |last4 = Price
|date = October 2004
|title = IRAS Minor Planet Survey V6.0
|url = https://sbnarchive.psi.edu/pds3/iras/IRAS_A_FPA_3_RDR_IMPS_V6_0/data/diamalb.tab
|journal = NASA Planetary Data System – IRAS-A-FPA-3-RDR-IMPS-V6.0
|bibcode = 2004PDSS...12.....T
|access-date = 17 October 2019}}
|display-authors = 6
|first1 = Joseph R. |last1 = Masiero
|first2 = A. K. |last2 = Mainzer
|first3 = T. |last3 = Grav
|first4 = J. M. |last4 = Bauer
|first5 = R. M. |last5 = Cutri
|first6 = J. |last6 = Dailey
|first7 = P. R. M. |last7 = Eisenhardt
|first8 = R. S. |last8 = McMillan
|first9 = T. B. |last9 = Spahr
|first10 = M. F. |last10 = Skrutskie
|first11 = D. |last11 = Tholen
|first12 = R. G. |last12 = Walker
|first13 = E. L. |last13 = Wright
|first14 = E. |last14 = DeBaun
|first15 = D. |last15 = Elsbury
|first16 = T. IV |last16 = Gautier
|first17 = S. |last17 = Gomillion
|first18 = A. |last18 = Wilkins
|date = November 2011
|title = Main Belt Asteroids with WISE/NEOWISE. I. Preliminary Albedos and Diameters
|url = http://adsabs.harvard.edu/cgi-bin/bib_query?bibcode=2011ApJ...741...68M
|journal = The Astrophysical Journal
|volume = 741
|issue = 2
|page = 20
|bibcode = 2011ApJ...741...68M
|doi = 10.1088/0004-637X/741/2/68
|arxiv = 1109.4096
|access-date= 27 December 2016}}
}}
External links
- [http://www.minorplanet.info/PHP/lcdbsummaryquery.php Asteroid Lightcurve Database (LCDB)], query form ([http://www.minorplanet.info/lightcurvedatabase.html info] {{Webarchive|url=https://web.archive.org/web/20171216050541/http://www.minorplanet.info/lightcurvedatabase.html |date=16 December 2017 }})
- [https://books.google.com/books?id=aeAg1X7afOoC&pg Dictionary of Minor Planet Names], Google books
- [http://obswww.unige.ch/~behrend/page_cou.html Asteroids and comets rotation curves, CdR] – Observatoire de Genève, Raoul Behrend
- [https://www.minorplanetcenter.net/iau/lists/NumberedMPs000001.html Discovery Circumstances: Numbered Minor Planets (1)-(5000)] – Minor Planet Center
- {{AstDys|1637}}
- {{JPL small body}}
{{Minor planets navigator |1636 Porter |number=1637 |1638 Ruanda}}
{{Small Solar System bodies}}
{{Authority control}}
{{DEFAULTSORT:Swings}}