1362 Griqua

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1362 Griqua
Discovery [1]
Discovered by C. Jackson
Discovery site Johannesburg Obs.
Discovery date 31 July 1935
Designations
MPC designation (1362) Griqua
Named after
Griqua people (tribe)[2]
1935 QG1 · 1931 BN
main-belt · (outer)[1]
Griqua[3]
Orbital characteristics[1]
Epoch 16 February 2017 (JD 2457800.5)
Uncertainty parameter 0
Observation arc 85.58 yr (31,258 days)
Aphelion 4.4106 AU
Perihelion 2.0212 AU
3.2159 AU
Eccentricity 0.3715
5.77 yr (2,106 days)
308.28°
0° 10m 15.24s / day
Inclination 24.225°
121.34°
261.85°
Physical characteristics
Dimensions 26.936±0.363 km[4]
29.90±1.5 km[5](IRAS:4)
6.907 h
0.0667±0.007[5]
0.082±0.013[4]
B–V = 0.720 [1]
U–B = 0.360 [1]
Tholen = CP [1]
11.18[1]

1362 Griqua, provisional designation 1935 QG1 is a carbonaceous asteroid from the outermost region of the asteroid belt, approximately 28 kilometers in diameter. It was discovered on 31 July 1935, by South-African astronomer Cyril Jackson at Union Observatory in Johannesburg, South Africa.[6] It is one of very few asteroids located in the 2 : 1 mean motion resonance with Jupiter.[3]

Griqua is the namesake and largest member of the small Griqua family of main-belt asteroids.[3] This family also includes 1922 Zulu and 1921 Pala.

This minor planet is named after the Griqua people, a mixed tribe of Bushman and Hottentot descent in Griqualand in South Africa.[2]

References[edit]

  1. ^ a b c d e f g "JPL Small-Body Database Browser: 1362 Griqua (1935 QG1)" (2016-08-15 last obs.). Jet Propulsion Laboratory. Retrieved 31 March 2017. 
  2. ^ a b Schmadel, Lutz D. (2007). Dictionary of Minor Planet Names – (1362) Griqua. Springer Berlin Heidelberg. p. 110. ISBN 978-3-540-00238-3. Retrieved 31 March 2017. 
  3. ^ a b c Roig, F.; Nesvorný, D.; Ferraz-Mello, S. (September 2002). "Asteroids in the 2 : 1 resonance with Jupiter: dynamics and size distribution [ Erratum: 2002MNRAS.336.1391R ]". Monthly Notices of the Royal Astronomical Society. 335 (2): 417–431. Bibcode:2002MNRAS.335..417R. doi:10.1046/j.1365-8711.2002.05635.x. Retrieved 31 March 2017. 
  4. ^ a b Masiero, Joseph R.; Mainzer, A. K.; Grav, T.; Bauer, J. M.; Cutri, R. M.; Dailey, J.; et al. (November 2011). "Main Belt Asteroids with WISE/NEOWISE. I. Preliminary Albedos and Diameters". The Astrophysical Journal. 741 (2): 20. Bibcode:2011ApJ...741...68M. arXiv:1109.4096Freely accessible. doi:10.1088/0004-637X/741/2/68. Retrieved 31 March 2017. 
  5. ^ a b Tedesco; et al. (2004). "Supplemental IRAS Minor Planet Survey (SIMPS)". IRAS-A-FPA-3-RDR-IMPS-V6.0. Planetary Data System. Archived from the original on January 17, 2010. Retrieved January 7, 2009. 
  6. ^ "1362 Griqua (1935 QG1)". Minor Planet Center. Retrieved 31 March 2017. 

External links[edit]