1632 Sieböhme
{{Short description|Asteroid and relatively slow rotator}}
{{Use dmy dates|date=October 2019}}
{{Infobox planet
| minorplanet = yes
| name = 1632 Sieböhme
| background = #D6D6D6
| image = 001632-asteroid shape model (1632) Sieböhme.png
| image_scale =
| caption = Shape model of Sieböhme from its lightcurve
| discovered = 26 February 1941
| discoverer = K. Reinmuth
| discovery_site = Heidelberg Obs.
| mpc_name = (1632) Sieböhme
| alt_names = 1941 DF{{·}}1930 UJ
1942 JC{{·}}1947 RB
1951 MN{{·}}1956 TM
A917 SO
| named_after = Siegfried Böhme {{small|(astronomer)}}
| mp_category = main-belt{{·}}{{small|(middle)}}
| epoch = 4 September 2017 (JD 2458000.5)
| uncertainty = 0
| observation_arc = 99.22 yr (36,239 days)
| aphelion = 3.0198 AU
| perihelion = 2.2915 AU
| semimajor = 2.6557 AU
| eccentricity = 0.1371
| period = 4.33 yr (1,581 days)
| mean_anomaly = 68.735°
| mean_motion = {{Deg2DMS|0.2277|sup=ms}} / day
| inclination = 5.7171°
| asc_node = 199.80°
| arg_peri = 127.21°
| dimensions = {{val|25.16|7.20}} km
{{val|26.05|8.68}} km
26.56 km {{small|(derived)}}
{{val|28.842|0.383}} km
{{val|29.351|0.105}} km
{{val|29.38|0.41}} km
| rotation = {{val|56.65|0.04}} h
{{val|56.81|0.01}} h
{{val|56.8129|0.1652}} h
| albedo = {{val|0.043|0.008}}
0.0477 {{small|(derived)}}
{{val|0.05|0.03}}
{{val|0.05|0.04}}
{{val|0.060|0.003}}
{{val|0.0643|0.0074}}
| spectral_type = S
| abs_magnitude = 11.3{{·}}{{val|11.597|0.002}} {{small|(R)}}{{·}}11.7{{·}}11.80{{·}}{{val|11.80|0.24}}
}}
1632 Sieböhme, provisional designation {{mp|1941 DF}}, is an asteroid and relatively slow rotator from the middle region of the asteroid belt, approximately 27 kilometers in diameter. It was discovered on 26 February 1941, by German astronomer Karl Reinmuth at Heidelberg Observatory in southern Germany. It was later named after ARI-astronomer Siegfried Böhme.
Orbital characteristics
Sieböhme orbits the Sun in the central main-belt at a distance of 2.3–3.0 AU once every 4 years and 4 months (1,581 days). Its orbit has an eccentricity of 0.14 and an inclination of 6° with respect to the ecliptic. In 1907, the body was first identified as {{mp|A917 SO}} at the Crimean Simeis Observatory, extending its observation arc by 34 years prior to its official discovery observation.
Physical characteristics
In August 2012, two rotational lightcurves of Sieböhme were obtained at the Palomar Transient Factory in California, and by Italian astronomer Albino Carbognani. These lightcurves gave a rotation period of 56.8129 and 56.81 hours with a brightness variation of 0.44 and 0.45 magnitude, respectively ({{small|U=2/2}}). One month later, photometric observations by amateur astronomer Pierre Antonini gave a period of 56.65 hours and an amplitude of 0.47 magnitude ({{small|U=2}}). As most minor planets rotate within 2 to 20 hours around their axis, Sieböhme has a relatively long period, despite not being a slow rotator.
According to the survey carried out by NASA's Wide-field Infrared Survey Explorer with its subsequent NEOWISE mission, Sieböhme measures between 25.16 and 29.38 kilometers in diameter, and its surface has an albedo between 0.043 and 0.064. The Collaborative Asteroid Lightcurve Link (CALL) derives an albedo of 0.0477 and a diameter of 26.56 kilometers with an absolute magnitude of 11.80. Although CALL derives an albedo that is darker than that of a carbonaceous asteroid, it classifies Sieböhme as a stony asteroid.
Naming
This minor planet was named in honor of German astronomer Siegfried Böhme (1909–1996), staff member at Astronomisches Rechen-Institut in Heidelberg since 1949. He improved upon the orbital elements of many asteroids, in particular upon 919 Ilsebill. The official {{MoMP|1632|naming citation}} was published by the Minor Planet Center on 20 February 1976 ({{small|M.P.C. 3931}}).
References
{{reflist|refs=
|type = 2016-12-13 last obs.
|title = JPL Small-Body Database Browser: 1632 Siebohme (1941 DF)
|url = https://ssd.jpl.nasa.gov/sbdb.cgi?sstr=2001632
|publisher = Jet Propulsion Laboratory
|accessdate = 30 June 2017}}
|title = Dictionary of Minor Planet Names – (1632) Sieböhme
|last = Schmadel | first = Lutz D.
|publisher = Springer Berlin Heidelberg
|page = 129
|date = 2007
|isbn = 978-3-540-00238-3
|doi = 10.1007/978-3-540-29925-7_1633 |chapter = (1632) Sieböhme }}
|title = 1632 Siebohme (1941 DF)
|work = Minor Planet Center
|url = https://www.minorplanetcenter.net/db_search/show_object?object_id=1632
|accessdate = 27 December 2016}}
|title = Dictionary of Minor Planet Names – Addendum to Fifth Edition (2006–2008)
|chapter = Appendix – Publication Dates of the MPCs
|last = Schmadel |first=Lutz D.
|date = 2009
|publisher = Springer Berlin Heidelberg
|page = 221
|isbn = 978-3-642-01964-7
|doi = 10.1007/978-3-642-01965-4|bibcode = 2009dmpn.book.....S
}}
|title = Asteroids and comets rotation curves – (1632) Sieböhme
|last = Behrend |first = Raoul
|publisher = Geneva Observatory
|url = http://obswww.unige.ch/~behrend/page4cou.html#001632
|accessdate = 27 December 2016}}
|display-authors = 6
|first1 = Joseph R. |last1 = Masiero
|first2 = T. |last2 = Grav
|first3 = A. K. |last3 = Mainzer
|first4 = C. R. |last4 = Nugent
|first5 = J. M. |last5 = Bauer
|first6 = R. |last6 = Stevenson
|first7 = S. |last7 = Sonnett
|date = August 2014
|title = Main-belt Asteroids with WISE/NEOWISE: Near-infrared Albedos
|url = http://adsabs.harvard.edu/cgi-bin/bib_query?bibcode=2014ApJ...791..121M
|journal = The Astrophysical Journal
|volume = 791
|issue = 2
|page = 11
|bibcode = 2014ApJ...791..121M
|doi = 10.1088/0004-637X/791/2/121
|arxiv = 1406.6645
|s2cid = 119293330 |access-date= 27 December 2016}}
|title = LCDB Data for (1632) Sieböhme
|publisher = Asteroid Lightcurve Database (LCDB)
|url = http://www.minorplanet.info/PHP/generateOneAsteroidInfo.php?AstInfo=1632%7CSieböhme
|accessdate = 27 December 2016}}
|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 = C. |last6 = Nugent
|first7 = M. S. |last7 = Cabrera
|date = November 2012
|title = Preliminary Analysis of WISE/NEOWISE 3-Band Cryogenic and Post-cryogenic Observations of Main Belt Asteroids
|url = http://adsabs.harvard.edu/cgi-bin/bib_query?bibcode=2012ApJ...759L...8M
|journal = The Astrophysical Journal Letters
|volume = 759
|issue = 1
|page = 5
|bibcode = 2012ApJ...759L...8M
|doi = 10.1088/2041-8205/759/1/L8
|arxiv = 1209.5794
|s2cid = 46350317 |access-date= 27 December 2016}}
|display-authors = 6
|first1 = A. |last1 = Mainzer
|first2 = T. |last2 = Grav
|first3 = J. |last3 = Masiero
|first4 = E. |last4 = Hand
|first5 = J. |last5 = Bauer
|first6 = D. |last6 = Tholen
|first7 = R. S. |last7 = McMillan
|first8 = T. |last8 = Spahr
|first9 = R. M. |last9 = Cutri
|first10 = E. |last10 = Wright
|first11 = J. |last11 = Watkins
|first12 = W. |last12 = Mo
|first13 = C. |last13 = Maleszewski
|date = November 2011
|title = NEOWISE Studies of Spectrophotometrically Classified Asteroids: Preliminary Results
|journal = The Astrophysical Journal
|volume = 741
|issue = 2
|page = 25
|bibcode = 2011ApJ...741...90M
|doi = 10.1088/0004-637X/741/2/90
|arxiv = 1109.6407|s2cid = 35447010 }}
|display-authors = 6
|first1 = C. R. |last1 = Nugent
|first2 = A. |last2 = Mainzer
|first3 = J. |last3 = Masiero
|first4 = J. |last4 = Bauer
|first5 = R. M. |last5 = Cutri
|first6 = T. |last6 = Grav
|first7 = E. |last7 = Kramer
|first8 = S. |last8 = Sonnett
|first9 = R. |last9 = Stevenson
|first10 = E. L. |last10 = Wright
|date = December 2015
|title = NEOWISE Reactivation Mission Year One: Preliminary Asteroid Diameters and Albedos
|url = http://adsabs.harvard.edu/cgi-bin/bib_query?bibcode=2015ApJ...814..117N
|journal = The Astrophysical Journal
|volume = 814
|issue = 2
|page = 13
|bibcode = 2015ApJ...814..117N
|doi = 10.1088/0004-637X/814/2/117
|arxiv = 1509.02522
|s2cid = 9341381 |access-date= 27 December 2016}}
|display-authors = 6
|first1 = C. R. |last1 = Nugent
|first2 = A. |last2 = Mainzer
|first3 = J. |last3 = Bauer
|first4 = R. M. |last4 = Cutri
|first5 = E. A. |last5 = Kramer
|first6 = T. |last6 = Grav
|first7 = J. |last7 = Masiero
|first8 = S. |last8 = Sonnett
|first9 = E. L. |last9 = Wright
|date = September 2016
|title = NEOWISE Reactivation Mission Year Two: Asteroid Diameters and Albedos
|journal = The Astronomical Journal
|volume = 152
|issue = 3
|page = 12
|bibcode = 2016AJ....152...63N
|doi = 10.3847/0004-6256/152/3/63
|arxiv = 1606.08923
|doi-access = free }}
|author = Carbognani, Albino
|date = January 2014
|title = Asteroids Lightcurves at Oavda: 2012 June - 2013 March
|url = http://adsabs.harvard.edu/cgi-bin/bib_query?bibcode=2014MPBu...41....4C
|journal = The Minor Planet Bulletin
|volume = 41
|issue = 1
|pages = 4–8
|issn = 1052-8091
|bibcode = 2014MPBu...41....4C
|access-date= 27 December 2016}}
|display-authors = 6
|first1 = Adam |last1 = Waszczak
|first2 = Chan-Kao |last2 = Chang
|first3 = Eran O. |last3 = Ofek
|first4 = Russ |last4 = Laher
|first5 = Frank |last5 = Masci
|first6 = David |last6 = Levitan
|first7 = Jason |last7 = Surace
|first8 = Yu-Chi |last8 = Cheng
|first9 = Wing-Huen |last9 = Ip
|first10 = Daisuke |last10 = Kinoshita
|first11 = George |last11 = Helou
|first12 = Thomas A. |last12 = Prince
|first13 = Shrinivas |last13 = Kulkarni
|date = September 2015
|title = Asteroid Light Curves from the Palomar Transient Factory Survey: Rotation Periods and Phase Functions from Sparse Photometry
|url = http://adsabs.harvard.edu/cgi-bin/bib_query?bibcode=2015AJ....150...75W
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|volume = 150
|issue = 3
|page = 35
|bibcode = 2015AJ....150...75W
|doi = 10.1088/0004-6256/150/3/75
|arxiv = 1504.04041
|s2cid = 8342929 |access-date= 27 December 2016}}
|display-authors = 6
|first1 = Peter |last1 = Veres
|first2 = Robert |last2 = Jedicke
|first3 = Alan |last3 = Fitzsimmons
|first4 = Larry |last4 = Denneau
|first5 = Mikael |last5 = Granvik
|first6 = Bryce |last6 = Bolin
|first7 = Serge |last7 = Chastel
|first8 = Richard J. |last8 = Wainscoat
|first9 = William S. |last9 = Burgett
|first10 = Kenneth C. |last10 = Chambers
|first11 = Heather |last11 = Flewelling
|first12 = Nick |last12 = Kaiser
|first13 = Eugen A. |last13 = Magnier
|first14 = Jeff S. |last14 = Morgan
|first15 = Paul A. |last15 = Price
|first16 = John L. |last16 = Tonry
|first17 = Christopher |last17 = Waters
|date = November 2015
|title = Absolute magnitudes and slope parameters for 250,000 asteroids observed by Pan-STARRS PS1 - Preliminary results
|url = http://adsabs.harvard.edu/cgi-bin/bib_query?bibcode=2015Icar..261...34V
|journal = Icarus
|volume = 261
|pages = 34–47
|bibcode = 2015Icar..261...34V
|doi = 10.1016/j.icarus.2015.08.007
|arxiv = 1506.00762
|s2cid = 53493339 |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|1632}}
- {{JPL small body}}
{{Minor planets navigator |1631 Kopff |number=1632 |1633 Chimay}}
{{Small Solar System bodies}}
{{Authority control}}
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