1633 Chimay

1633 Chimay

Light-curve based 3D-model of 1633 Chimay
Discovery [1]
Discovered by S. Arend
Discovery site Uccle – Belgium
Discovery date 3 March 1929
Designations
MPC designation 1633 Chimay
Named after
 Chimay (Belgian town)[2]
1929 EC · 1941 KF
1946 HC · 1948 RO
1951 AM · 1952 HY3
1954 SS · 1955 XN
1972 VM1 · A917 BB
main-belt · Themis [3]
Orbital characteristics [1]
Epoch 31 July 2016 (JD 2457600.5)
Uncertainty parameter 0
Observation arc 98.75 yr (36,070 days)  
Aphelion 3.5909 AU
Perihelion 2.7977 AU
3.1943 AU
Eccentricity 0.1241
5.71 yr (2,085 days)
168.41°
0° 10m 21.36s / day
Inclination 2.6759°
114.09°
65.423°
Physical characteristics
Dimensions 36.12±3.1 km (IRAS:3)
36.26±0.86 km[4]
37.732±0.426 km[5]
36.07 km (derived)[3]
6.5911±0.0001 h[6]
6.58±0.01 h[7]
6.59064±0.00005 h[8]
6.58±0.01 h[9]
6.6367±0.0038 h[10]
0.0854±0.017 (IRAS:3)
0.088±0.005[4]
0.0785±0.0135[5]
0.0781 (derived)[3]
S [3]
10.6[1][3]
10.5[4][5]
10.36±0.17 (R)[9]
10.97±0.06[11]
10.481±0.002 (R)[10]

    1633 Chimay, provisional designation 1929 EC, is a dark Themistian asteroid from the outer region of the asteroid belt, about 36 kilometers in diameter. It was discovered by Belgian astronomer Sylvain Arend at the Royal Observatory of Belgium in Uccle, on 3 March 1929.[12] Five nights later, the body was independently discovered by Max Wolf at Heidelberg Observatory in southern Germany.[2]

    The asteroid is a member of the Themis family, a dynamical family of outer-belt asteroids with nearly coplanar ecliptical orbits. It orbits the Sun at a distance of 2.8–3.6 AU once every 5 years and 9 months (2,085 days). Its orbit has an eccentricity of 0.12 and inclination of 3° with respect to the ecliptic.[1] The first precovery was taken at Heidelberg Observatory in 1917, extending the asteroid's observation arc by 12 years prior to its discovery.[12]

    Several photometric light-curve analysis rendered a well-defined, concurring rotation period of 6.6 hours (U=3/3-/2).[6][7][8][9][10] According to the surveys carried out by the Infrared Astronomical Satellite, IRAS, the Japanese Akari satellite, and the NEOWISE mission of NASA's Wide-field Infrared Survey Explorer, the asteroid measures between 36.1 and 37.7 kilometers in diameter, and its surface has a low albedo between 0.079 and 0.089.[1][4][5] In accordance with the space-based surveys, the Collaborative Asteroid Lightcurve Link (CALL) derives an albedo of 0.078, and calculates a diameter of 36.1 kilometers. CALL also classifies the body as a S-type rather than a carbonaceous C-type asteroid.[3]

    The minor planet was named after the Belgian town Chimay, home of the discoverer, who also co-discovered Comet Arend–Roland.[2] Naming citation was published before November 1977 (M.P.C. 3931).[13]

    References

    1. 1 2 3 4 5 "JPL Small-Body Database Browser: 1633 Chimay (1929 EC)" (2015-10-25 last obs.). Jet Propulsion Laboratory. Retrieved 1 May 2016.
    2. 1 2 3 Schmadel, Lutz D. (2007). Dictionary of Minor Planet Names – (1633) Chimay. Springer Berlin Heidelberg. p. 130. ISBN 978-3-540-00238-3. Retrieved 1 May 2016.
    3. 1 2 3 4 5 6 "LCDB Data for (1633) Chimay". Asteroid Lightcurve Database (LCDB). Retrieved 1 May 2016.
    4. 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. Retrieved 1 May 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:1109.6407Freely accessible. Bibcode:2011ApJ...741...90M. doi:10.1088/0004-637X/741/2/90. Retrieved 1 May 2016.
    6. 1 2 Behrend, Raoul. "Asteroids and comets rotation curves – (1633) Chimay". Geneva Observatory. Retrieved 1 May 2016.
    7. 1 2 Brinsfield, James W. (October 2008). "Asteroid Lightcurve Analysis at the Via Capote Observatory: 2nd Quarter 2008". The Minor Planet Bulletin. 35 (4): 179–181. Bibcode:2008MPBu...35..179B. ISSN 1052-8091. Retrieved 7 January 2016.
    8. 1 2 Hanus, J.; Broz, M.; Durech, J.; Warner, B. D.; Brinsfield, J.; Durkee, R.; et al. (November 2013). "An anisotropic distribution of spin vectors in asteroid families". Astronomy and Astrophysics. 559: 19. arXiv:1309.4296Freely accessible. Bibcode:2013A&A...559A.134H. doi:10.1051/0004-6361/201321993. Retrieved 7 January 2016.
    9. 1 2 3 Chang, Chan-Kao; Ip, Wing-Huen; Lin, Hsing-Wen; Cheng, Yu-Chi; Ngeow, Chow-Choong; Yang, Ting-Chang; et al. (June 2014). "313 New Asteroid Rotation Periods from Palomar Transient Factory Observations". The Astrophysical Journal. 788 (1): 21. arXiv:1405.1144Freely accessible. Bibcode:2014ApJ...788...17C. doi:10.1088/0004-637X/788/1/17. Retrieved 7 January 2016.
    10. 1 2 3 Waszczak, Adam; Chang, Chan-Kao; Ofek, Eran O.; Laher, Russ; Masci, Frank; Levitan, David; 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:1504.04041Freely accessible. Bibcode:2015AJ....150...75W. doi:10.1088/0004-6256/150/3/75. Retrieved 1 May 2016.
    11. ↑ 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:1506.00762Freely accessible. Bibcode:2015Icar..261...34V. doi:10.1016/j.icarus.2015.08.007. Retrieved 1 May 2016.
    12. 1 2 "1633 Chimay (1929 EC)". Minor Planet Center. Retrieved 1 May 2016.
    13. ↑ "MPC/MPO/MPS Archive". Minor Planet Center. Retrieved 5 August 2016.

    External links

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