1632 Sieböhme

1632 Sieböhme
Discovery [1]
Discovered by K. Reinmuth
Discovery site Heidelberg Obs.
Discovery date 26 February 1941
Designations
MPC designation 1632 Siebohme
Named after
 Siegfried Böhme
(astronomer)[2]
1941 DF · 1930 UJ
1942 JC · 1947 RB
1951 MN · 1956 TM
A917 SO
main-belt · (middle) [3]
Orbital characteristics [1]
Epoch 27 June 2015 (JD 2457200.5)
Uncertainty parameter 0
Observation arc 97.80 yr (35,720 days)
Aphelion 3.0180 AU
Perihelion 2.2921 AU
2.6551 AU
Eccentricity 0.1367
4.33 yr (1,580 days)
246.47°
Inclination 5.7166°
199.80°
127.22°
Physical characteristics
Dimensions 26.70 km
29.38±0.41 km[4]
28.842±0.383 km[5]
26.58 km (derived)[3]
56.65 h[6]
56.81±0.01 h[7]
56.8129±0.1652 h[8]
0.0748
0.043±0.008[4]
0.0643±0.0074[5]
0.0522 (derived)[3]
S [3]
11.7

    1632 Sieböhme, provisional designation 1941 DF, is a stony asteroid and slow rotator from the middle region of the asteroid belt, about 27 kilometers in diameter. It was discovered by German astronomer Karl Reinmuth at Heidelberg Observatory on 26 February 1941.[9]

    The asteroid orbits the Sun at a distance of 2.3–3.0 AU once every 4 years and 4 months (1,580 days). Its orbit shows an eccentricity of 0.14 and is tilted by 6 degrees to the plane of the ecliptic. Light-curve observations measured a long rotation period of more than 56 hours.[6][7][8] For a stony S-type asteroid, it has an exceptionally low geometric albedo of around 0.07, according to observations carried out by the WISE and NEOWISE missions.[4][5]

    The 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.[2]

    References

    1. 1 2 "JPL Small-Body Database Browser: 1632 Siebohme (1941 DF)" (2015-07-13 last obs.). Jet Propulsion Laboratory. Retrieved November 2015.
    2. 1 2 Schmadel, Lutz D. (2003). Dictionary of Minor Planet Names – (1632) Sieböhme. Springer Berlin Heidelberg. p. 129. ISBN 978-3-540-29925-7. Retrieved November 2015.
    3. 1 2 3 4 "LCDB Data for (1632) Siebohme". Asteroid Lightcurve Database (LCDB). Retrieved November 2015.
    4. 1 2 3 Masiero, Joseph R.; Mainzer, A. K.; Grav, T.; Bauer, J. M.; Cutri, R. M.; 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 November 2015.
    5. 1 2 3 Mainzer, A.; Grav, T.; Masiero, J.; Hand, E.; Bauer, J.; 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 November 2015.
    6. 1 2 Behrend, Raoul. "Asteroids and comets rotation curves – (1632) Siebohme". Geneva Observatory. Retrieved November 2015.
    7. 1 2 Carbognani, Albino (January 2014). "Asteroids Lightcurves at Oavda: 2012 June - 2013 March". Bulletin of the Minor Planets (Section of the Association of Lunar and Planetary Observers) 41 (1): 4–8. Bibcode:2014MPBu...41....4C. ISSN 1052-8091. Retrieved November 2015.
    8. 1 2 Waszczak, Adam; Chang, Chan-Kao; Ofek, Eran O.; Laher, Russ; Masci, Frank; et al. (September 2015). "Asteroid Light Curves from the Palomar Transient Factory Survey: Rotation Periods and Phase Functions from Sparse Photometry". The Astronomical Journal 150 (3): 35. arXiv:1504.04041. Bibcode:2015AJ....150...75W. doi:10.1088/0004-6256/150/3/75. Retrieved November 2015.
    9. ↑ "1632 Siebohme (1941 DF)". Minor Planet Center. Retrieved November 2015.

    External links


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