1167 Dubiago

From Wikipedia, the free encyclopedia
Jump to: navigation, search
1167 Dubiago
Discovery [1]
Discovered by E. F. Skvortsov
Discovery site Simeiz Observatory
Discovery date 3 August 1930
Designations
MPC designation 1167 Dubiago
Named after
Alexander Dubyago
(also spelled: Dubiago)[2]
1930 PB · 1931 VJ1
1938 WW · 1950 QX
A924 RF
main-belt (outer)[3]
Orbital characteristics[1]
Epoch 31 July 2016 (JD 2457600.5)
Uncertainty parameter 0
Observation arc 85.48 yr (31223 days)
Aphelion 3.6645 AU (548.20 Gm)
Perihelion 3.1780 AU (475.42 Gm)
3.4212 AU (511.80 Gm)
Eccentricity 0.071102
6.33 yr (2311.4 d)
253.30°
0° 9m 20.7s / day
Inclination 5.7298°
223.47°
69.814°
Earth MOID 2.16795 AU (324.321 Gm)
Jupiter MOID 1.46898 AU (219.756 Gm)
Jupiter Tisserand parameter 3.130
Physical characteristics
Dimensions 63.12 km[4]
75.79±0.90 km[5]
Mean radius
31.56±2.8 km
14.3 h (0.60 d)[1][6]
34.8374±0.0990 h[7]
0.0509[4]
0.036±0.001[5]
0.0509±0.010[1]
B–V = 0.743
U–B = 0.196
Tholen = D
9.85

1167 Dubiago, provisional designation 1930 PB, is a larger asteroid from the outer region of the asteroid belt, approximately 63 kilometers in diameter. It was discovered by Soviet astronomer Evgenii Skvortsov at the Crimean Simeiz Observatory on 3 August 1930.[8]

It orbits the Sun at a distance of 3.2–3.7 AU once every 6 years and 4 months (2,304 days). It has a rotation period of 14.3 hours and a low geometric albedo of 0.036 and 0.051, as measured by the two infrared satellites, Akari and IRAS, respectively.[4][5]

Dubiago belongs to the group of D-type minor planets, of which a total 46 bodies are known, many of them Jupiter trojans or centaurs, with the largest being 10199 Chariklo and 624 Hektor.[9] It is thought that the Martian moon Phobos has a similar composition, and that the Tagish Lake meteorite origins from a D-type asteroid.

The asteroid was named in honor of Alexander Dubyago (1903–1959), an eminent astronomer of the Soviet Union. The lunar crater Dubyago is also named in his and his father's honour.[2]

References[edit]

  1. ^ a b c d "JPL Small-Body Database Browser: 1167 Dubiago (1930 PB)" (2015-10-17 last obs.). Jet Propulsion Laboratory. Retrieved 1 May 2016. 
  2. ^ a b Schmadel, Lutz D. (2003). Dictionary of Minor Planet Names – (1167) Dubiago. Springer Berlin Heidelberg. p. 98. ISBN 978-3-540-29925-7. Retrieved 5 November 2015. 
  3. ^ "LCDB Data for (1167) Dubiago". Asteroid Lightcurve Database (LCDB). Retrieved 5 November 2015. 
  4. ^ a b c 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 5 November 2015. 
  5. ^ a b c 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 5 November 2015. 
  6. ^ Dahlgren, M.; Lagerkvist, C.-I.; Fitzsimmons, A.; Williams, I. P. (May 1991). "Differential CCD photometry of Dubiago, Chiron and Hektor". Monthly Notices of the Royal Astronomical Society: 115–118. Bibcode:1991MNRAS.250..115D. doi:10.1093/mnras/250.1.115. ISSN 0035-8711. Retrieved 5 November 2015. 
  7. ^ 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 5 November 2015. 
  8. ^ "1167 Dubiago (1930 PB)". Minor Planet Center. Retrieved 5 November 2015. 
  9. ^ "JPL Small-Body Database Search: list of D-type minor planets (Tholen/SMASSII)". Jet Propulsion Laboratory. Retrieved 5 November 2015. 

External links[edit]