1772 Gagarin

1772 Gagarin
Discovery [1]
Discovered by L. Chernykh
Discovery site CrAO - Nauchnyj
Discovery date 6 February 1968
Designations
MPC designation 1772 Gagarin
Named after
 Yuri Gagarin
(cosmonaut)[2]
1968 CB · 1940 GA
1942 VZ · 1948 ET
1960 FH · 1969 OO
main-belt · (inner) [3]
Orbital characteristics [1]
Epoch 13 January 2016 (JD 2457400.5)
Uncertainty parameter 0
Observation arc 75.97 yr (27747 days)
Aphelion 2.7929 AU (417.81 Gm)
Perihelion 2.2611 AU (338.26 Gm)
2.5270 AU (378.03 Gm)
Eccentricity 0.10522
4.02 yr (1467.2 d)
302.76°
0° 14m 43.296s / day
Inclination 5.7419°
88.217°
93.839°
Earth MOID 1.27224 AU (190.324 Gm)
Jupiter MOID 2.1851 AU (326.89 Gm)
Jupiter Tisserand parameter 3.438
Physical characteristics
Dimensions 9.634±0.105 km[4]
8.00 km (derived)[3]
10.96 h (0.457 d)[1][5]
10.94130±0.00005 h[6]
10.9430±0.0049 h[7]
0.1380±0.0085[4]
0.20 (assumed)[3]
B–V = 0.920
S [3]
12.7

    1772 Gagarin, provisional designation 1968 CB, is a stony asteroid from the inner regions of the asteroid belt, about 9 kilometers in diameter. It was discovered by Russian female astronomer Lyudmila Chernykh at the Crimean Astrophysical Observatory in Nauchnyj on 6 February 1968.[8]

    The asteroid orbits the Sun at a distance of 2.3–2.8 AU once every 4 years and 7 days (1,467 days). Its orbit shows an eccentricity of 0.11 and is tilted by 6 degrees to the plane of the ecliptic. The asteroid has a rotation period of 10.9 hours[5][6][7] and an albedo of 0.14 based on preliminary results from the Wide-field Infrared Survey Explorer space telescope.[4] The Collaborative Asteroid Lightcurve Link assumes a somewhat higher albedo of 0.20 according to is classification as a S-type asteroid.[3]

    The minor planet is named after Russian–Soviet cosmonaut Yuri Gagarin (1934–1968), Hero of the Soviet Union and first human to journey into outer space by circumnavigating Earth in 1961. Gagarin died in a jet fighter crash in 1968, the year the asteroid was discovered. The lunar crater Gagarin is also named in his honor.[2]

    References

    1. 1 2 3 "JPL Small-Body Database Browser: 1772 Gagarin (1968 CB)" (2015-10-20 last obs.). Jet Propulsion Laboratory. Retrieved 20 April 2016.
    2. 1 2 Schmadel, Lutz D. (2003). Dictionary of Minor Planet Names – (1772) Gagarin. Springer Berlin Heidelberg. p. 142. ISBN 978-3-540-29925-7. Retrieved November 2015.
    3. 1 2 3 4 5 "LCDB Data for (1772) Gagarin". Asteroid Lightcurve Database (LCDB). Retrieved November 2015.
    4. 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.
    5. 1 2 Binzel, R. P. (October 1987). "A photoelectric survey of 130 asteroids". Icarus: 135–208. Bibcode:1987Icar...72..135B. doi:10.1016/0019-1035(87)90125-4. ISSN 0019-1035. Retrieved November 2015.
    6. 1 2 Hanus, J.; Durech, J.; Broz, M.; Warner, B. D.; Pilcher, F.; Stephens, R.; et al. (June 2011). "A study of asteroid pole-latitude distribution based on an extended set of shape models derived by the lightcurve inversion method". Astronomy & Astrophysics 530: 16. arXiv:1104.4114. Bibcode:2011A&A...530A.134H. doi:10.1051/0004-6361/201116738. Retrieved November 2015.
    7. 1 2 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:1504.04041. Bibcode:2015AJ....150...75W. doi:10.1088/0004-6256/150/3/75. Retrieved November 2015.
    8. ↑ "1772 Gagarin (1968 CB)". Minor Planet Center. Retrieved November 2015.

    External links


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