1339 Désagneauxa

1339 Désagneauxa
Discovery [1]
Discovered by L. Boyer
Discovery site Algiers Observatory
Discovery date 4 December 1934
Designations
MPC designation 1339 Desagneauxa
Named after
 brother-in-law of
Louis Boyer[2]
1934 XB · 1951 AF
main-belt · Eos [3]
Orbital characteristics [1]
Epoch 31 July 2016 (JD 2457600.5)
Uncertainty parameter 0
Observation arc 80.55 yr (29420 days)
Aphelion 3.1933 AU (477.71 Gm)
Perihelion 2.8449 AU (425.59 Gm)
3.0191 AU (451.65 Gm)
Eccentricity 0.057689
5.25 yr (1916.1 d)
185.11°
0° 11m 16.368s / day
Inclination 8.6921°
291.00°
162.44°
Earth MOID 1.86145 AU (278.469 Gm)
Jupiter MOID 1.9473 AU (291.31 Gm)
Jupiter Tisserand parameter 3.227
Physical characteristics
Dimensions 22.96 km[4]
24.20±0.65 km[5]
25.733±0.200 km[6]
23.04 km (derived)[3]
Mean radius
 11.48±0.85 km
9.380 h (0.3908 d)[1][7]
9.3209±0.0006 h[8]
9.37510±0.00005 h[9]
0.1589[4]
0.151±0.009[5]
0.1274±0.0165[6]
0.1747 (derived)[3]
0.1589±0.026[1]
B–V = 0.790
U–B = 0.425
Tholen = S
S [3]
10.7

    1339 Désagneauxa, provisional designation 1934 XB, is an asteroid from the outer region of the asteroid belt, about 23 kilometers in diameter. It was discovered on 4 December 1934 by French astronomer Louis Boyer at the Algiers Observatory in Algeria, North Africa.[10] The body was independently discovered, just a few nights later, by the Russian and Belgian astronomers, Grigory Neujmin and Eugène Delporte, at the Crimean Simeiz and Belgian Uccle Observatory, respectively.[2]

    The S-type asteroid is a member of the Eos family, thought to have formed from a catastrophic collision of its parent body resulting in more than 4,000 known members of the family. It orbits the Sun at a distance of 2.8–3.2 AU once every 5 years and 3 months (1,916 days). Its orbit shows an eccentricity of 0.06 and is tilted by 9 degrees to the plane of the ecliptic. It has a rotation period of about 9.4 hours.[7][8][9] Based on observations carried out by the Infrared Astronomical Satellite, IRAS, the Japanese Akari satellite, and the Wide-field Infrared Survey Explorer, the body's geometric albedo is in the range of 0.13– 0.16, while the Collaborative Asteroid Lightcurve Link derives a value for its albedo of 0.17.[3][4][5][6]

    The discoverer, Louis Boyer, named the asteroid in honour of his brother-in-law.[2]

    References

    1. 1 2 3 4 "JPL Small-Body Database Browser: 1339 Desagneauxa (1934 XB)" (2015-06-22 last obs.). Jet Propulsion Laboratory. Retrieved 27 April 2016.
    2. 1 2 3 Schmadel, Lutz D. (2003). Dictionary of Minor Planet Names – (1339) Désagneauxa. Springer Berlin Heidelberg. p. 109. ISBN 978-3-540-29925-7. Retrieved November 2015.
    3. 1 2 3 4 5 "LCDB Data for (1339) Desagneauxa". Asteroid Lightcurve Database (LCDB). Retrieved November 2015.
    4. 1 2 3 Tedesco, E. F.; Noah, P. V.; Noah, M.; Price, S. D. (October 2004). "IRAS Minor Planet Survey V6.0". NASA Planetary Data System. Bibcode:2004PDSS...12.....T. Retrieved November 2015.
    5. 1 2 3 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 November 2015.
    6. 1 2 3 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:1109.6407. Bibcode:2011ApJ...741...90M. doi:10.1088/0004-637X/741/2/90. Retrieved November 2015.
    7. 1 2 Bennefeld, Craig; Cantu, Jenel; Holly, Vashti; Jordon, Latoya; Martin, Tierra; Soar, Elysabeth; et al. (April 2009). "Asteroid Lightcurve Analysis at Ricky Observatory". The Minor Planet Bulletin 36 (2): 45–48. Bibcode:2009MPBu...36...45B. ISSN 1052-8091. Retrieved November 2015.
    8. 1 2 Behrend, Raoul. "Asteroids and comets rotation curves – (1339) Desagneauxa". Geneva Observatory. Retrieved November 2015.
    9. 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 & Astrophysics 559: 19. arXiv:1309.4296. Bibcode:2013A&A...559A.134H. doi:10.1051/0004-6361/201321993. Retrieved November 2015.
    10. ↑ "1339 Desagneauxa (1934 XB)". Minor Planet Center. Retrieved November 2015.

    External links


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