1177 Gonnessia

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1177 Gonnessia
Discovery [1]
Discovered by L. Boyer
Discovery site Algiers Observatory
Discovery date 24 November 1930
Designations
MPC designation 1177 Gonnessia
Named after
François Gonnessiat[2]
1930 WA · A923 RO
main-belt (outer)
Orbital characteristics[1]
Epoch 31 July 2016 (JD 2457600.5)
Uncertainty parameter 0
Observation arc 85.12 yr (31089 days)
Aphelion 3.4542 AU (516.74 Gm)
Perihelion 3.2445 AU (485.37 Gm)
3.3493 AU (501.05 Gm)
Eccentricity 0.031298
6.13 yr (2238.9 d)
280.68°
0° 9m 38.844s / day
Inclination 15.068°
252.16°
241.29°
Earth MOID 2.28571 AU (341.937 Gm)
Jupiter MOID 1.72873 AU (258.614 Gm)
Jupiter Tisserand parameter 3.102
Physical characteristics
Dimensions 92 km
Mean radius
45.99±4.95 km
30.51 h (1.271 d)
0.0398±0.010
B–V = 0.668
U–B = 0.244
Tholen = XFU
9.30

1177 Gonnessia, provisional designation 1930 WA, is a large, 92-kilometer in diameter asteroid of the outer main-belt. It was discovered on November 24, 1930, by French astronomer Louis Boyer at Algiers Observatory, Algeria, Northern Africa. It has the unusual spectral class XFU in the Tholen classification system.[1]

The asteroid is named after François Gonnessiat (1856–1934), director of the Algiers Bouzaréah and Quito Observatories.[2]

References[edit]

  1. ^ a b c "JPL Small-Body Database Browser: 1177 Gonnessia (1930 WA)" (2015-09-23 last obs.). Jet Propulsion Laboratory. Retrieved 1 May 2016. 
  2. ^ a b Schmadel, Lutz D. (2003). Dictionary of Minor Planet Names – (1177) Gonnessia. Springer Berlin Heidelberg. p. 99. ISBN 978-3-540-29925-7. Retrieved 22 August 2016. 

External links[edit]