1646 Rosseland

1646 Rosseland
Discovery [1]
Discovered by Y. Väisälä
Discovery site Turku Observatory
Discovery date 19 January 1939
Designations
MPC designation 1646 Rosseland
Named after
 Svein Rosseland
(astrophysicist)[2]
1939 BG · 1937 QH
1948 QR · 1955 NB
1977 FK · 1980 ME
main-belt · (inner) [3]
Orbital characteristics [1]
Epoch 13 January 2016 (JD 2457400.5)
Uncertainty parameter 0
Observation arc 78.55 yr (28690 days)
Aphelion 2.6428 AU (395.36 Gm)
Perihelion 2.0780 AU (310.86 Gm)
2.3604 AU (353.11 Gm)
Eccentricity 0.11963
3.63 yr (1324.6 d)
157.61°
0° 16m 18.444s / day
Inclination 8.3791°
119.99°
279.94°
Earth MOID 1.10436 AU (165.210 Gm)
Jupiter MOID 2.74025 AU (409.936 Gm)
Jupiter Tisserand parameter 3.528
Physical characteristics
Dimensions 13.49±0.27 km[4]
12.130±0.007 km[5]
12.80±0.23 km[6]
12.85 km (calculated)[3]
69.2 h (2.88 d)[1][7]
68.9 h[8]
0.186±0.008[4]
0.2253±0.0341[5]
0.202±0.030[6]
0.20 (assumed)[3]
S [3]
11.82

    1646 Rosseland, provisional designation 1939 BG, is a stony asteroid from the inner regions of the asteroid belt, about 13 kilometers in diameter. It was discovered by Finnish astronomer Yrjö Väisälä at Turku Observatory on 19 January 1939.[9]

    The S-type asteroid orbits the Sun at a distance of 2.1–2.6 AU once every 3.63 years (1,325 days). Its orbit shows an eccentricity of 0.12 and is tilted by 8 degrees to the plane of the ecliptic. It has a rotation period of 69 hours[7][8] and an albedo of 0.18–0.23, according to the surveys carried out by the Akari and WISE/NEOWISE space-based missions.[4][5]

    The minor planet is named in honor of renowned Norwegian Astrophysicist Svein Rosseland (1894–1985), founder and first director of the Institute for Theoretical Astrophysics in Oslo. His work on the theory of stellar interiors included studies of stellar rotation and stability and the derivation of the Rosseland mean opacity.[2] The lunar crater Rosseland is also named after him.

    References

    1. 1 2 3 "JPL Small-Body Database Browser: 1646 Rosseland (1939 BG)" (2015-05-26 last obs.). Jet Propulsion Laboratory. Retrieved 22 April 2016.
    2. 1 2 Schmadel, Lutz D. (2003). Dictionary of Minor Planet Names – (1646) Rosseland. Springer Berlin Heidelberg. p. 131. ISBN 978-3-540-29925-7. Retrieved November 2015.
    3. 1 2 3 4 "LCDB Data for (1646) Rosseland". Asteroid Lightcurve Database (LCDB). Retrieved November 2015.
    4. 1 2 3 Usui, Fumihiko; Kuroda, Daisuke; Müller, Thomas G.; Hasegawa, Sunao; Ishiguro, Masateru; 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 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 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.
    7. 1 2 Binzel, R. P.; Mulholland, J. D. (December 1983). "A photoelectric lightcurve survey of small main belt asteroids". Icarus: 519–533. Bibcode:1983Icar...56..519B. doi:10.1016/0019-1035(83)90170-7. ISSN 0019-1035. Retrieved November 2015.
    8. 1 2 Angeli, C. A.; Lazzaro, D.; Florczak, M. A.; Betzler, A. S.; Carvano, J. M. (May 1999). "A contribution to the study of asteroids with longrotational period". Planetary and Space Science 47 (5): 699–714. Bibcode:1999P&SS...47..699A. doi:10.1016/S0032-0633(98)00122-6. Retrieved November 2015.
    9. ↑ "1646 Rosseland (1939 BG)". Minor Planet Center. Retrieved November 2015.

    External links


    This article is issued from Wikipedia - version of the Saturday, April 23, 2016. The text is available under the Creative Commons Attribution/Share Alike but additional terms may apply for the media files.