1665 Gaby

1665 Gaby
Discovery [1]
Discovered by K. Reinmuth
Discovery site Heidelberg Obs.
Discovery date 27 February 1930
Designations
MPC designation 1665 Gaby
Named after
 Gaby Reinmuth
(daughter-in-law of)
Karl Reinmuth[2]
1930 DQ · 1941 BC
1949 HS · 1951 WQ
1957 KF
main-belt · (inner) [3]
Orbital characteristics [1]
Epoch 13 January 2016 (JD 2457400.5)
Uncertainty parameter 0
Observation arc 86.06 yr (31433 days)
Aphelion 2.9134 AU (435.84 Gm)
Perihelion 1.9151 AU (286.49 Gm)
2.4142 AU (361.16 Gm)
Eccentricity 0.20675
3.75 yr (1370.1 d)
8.1415°
0° 15m 45.9s / day
Inclination 10.832°
91.590°
5.9840°
Earth MOID 0.931882 AU (139.4076 Gm)
Jupiter MOID 2.2831 AU (341.55 Gm)
Jupiter Tisserand parameter 3.464
Physical characteristics
Dimensions 10.960±0.021 km[4]
11.009 km[5]
11.01 km (taken)[3]
66 h (2.8 d)[1][6]
67.905±0.005 h[7]
0.2681±0.0736[4]
0.2532[5]
B–V = 0.848
U–B = 0.481
Tholen = S
S [3]
11.85

    1665 Gaby, provisional designation 1930 DQ, is a stony asteroid and a slow rotator from the inner regions of the asteroid belt, about 11 kilometers in diameter. It was discovered by German astronomer Karl Reinmuth at Heidelberg Observatory on 27 February 1930.[8]

    The S-type asteroid orbits the Sun at a distance of 1.9–2.9 AU once every 3 years and 9 months (1,370 days). Its orbit shows a rather high eccentricity of 0.21 and is tilted by 11 degrees to the plane of the ecliptic. It has a very slow rotation period of 66–68 hours.[6][7] and an albedo of 0.26 determined by the WISE/NEOWISE surveys.[4][5]

    The asteroid was named by the discoverer after his daughter-in-law, Gaby Reinmuth.[2]

    References

    1. 1 2 3 "JPL Small-Body Database Browser: 1665 Gaby (1930 DQ)" (2015-10-17 last obs.). Jet Propulsion Laboratory. Retrieved 22 April 2016.
    2. 1 2 Schmadel, Lutz D. (2003). Dictionary of Minor Planet Names – (1665) Gaby. Springer Berlin Heidelberg. p. 132. ISBN 978-3-540-29925-7. Retrieved November 2015.
    3. 1 2 3 "LCDB Data for (1665) Gaby". Asteroid Lightcurve Database (LCDB). Retrieved November 2015.
    4. 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.
    5. 1 2 3 Pravec, Petr; Harris, Alan W.; Kusnirák, Peter; Galád, Adrián; Hornoch, Kamil (September 2012). "Absolute magnitudes of asteroids and a revision of asteroid albedo estimates from WISE thermal observations". Icarus 221 (1): 365–387. Bibcode:2012Icar..221..365P. doi:10.1016/j.icarus.2012.07.026. Retrieved November 2015.
    6. 1 2 Behrend, Raoul. "Asteroids and comets rotation curves – (1665) Gaby". Geneva Observatory. Retrieved November 2015.
    7. 1 2 Hanus, J.; Durech, J.; Broz, M.; Warner, B. D.; Pilcher, F.; 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.
    8. ↑ "1665 Gaby (1930 DQ)". Minor Planet Center. Retrieved November 2015.

    External links


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