9617 Grahamchapman
| Discovery Synodic rotation period | 2.2856 h[4] 2.28561±0.00006 h[9] 2.28561±0.00009 h[9] | |
|---|---|---|
| 0.2237[8] 0.2445±0.0393[6][7] | ||
| S [3] | ||
| 14.37±0.23 (R)[9] · 14.43±0.2 (R)[4] · 14.7[1] · 14.88[6] · 14.97±0.078[3][8] · 15.03±0.34[10] | ||
9617 Grahamchapman, provisional designation 1993 FA5, is a binary[4] Florian asteroid from the inner regions of the asteroid belt, approximately 2.8 kilometers in diameter.
The asteroid was discovered on 17 March 1993, during the
Orbit and classification
Grahamchapman is a member of the Flora family, one of the largest collisional groups of stony asteroids. It orbits the Sun in the inner main-belt at a distance of 2.0–2.5 AU once every 3 years and 4 months (1,211 days). Its orbit has an eccentricity of 0.11 and an inclination of 6° with respect to the ecliptic.[1] A first precovery was taken at Palomar Observatory in 1951, extending the body's observation arc by 42 years prior to its official discovery observation at La Silla.[11]
Physical characteristics
Diameter and albedo
According to the survey carried out by NASA's
Asteroid moon
In February 2006, observations by the Ondřejov NEO Photometric Program determined that Grahamchapman is orbited by a minor-planet moon. The satellite is about a quarter the size of Grahamchapman, and orbits it about once every 19 hours, 23 minutes, and 5 seconds.[4][5]
Rotation period and shape
The
Naming
This
References
- ^ a b c d "JPL Small-Body Database Browser: 9617 Grahamchapman (1993 FA5)" (2016-06-08 last obs.). Jet Propulsion Laboratory. Retrieved 22 June 2017.
- ^ ISBN 978-3-540-00238-3.
- ^ a b c d e "LCDB Data for (9617) Grahamchapman". Asteroid Lightcurve Database (LCDB). Retrieved 8 September 2016.
- ^ Bibcode:2006CBET..414....1P. Retrieved 8 September 2016.
- ^ a b Johnston, Robert. "(9617) Grahamchapman". johnstonsarchive.net. Retrieved 8 September 2015.
- ^ .
- ^ . Retrieved 8 September 2016.
- ^ . Retrieved 8 September 2016.
- ^ . Retrieved 8 September 2016.
- . Retrieved 8 September 2016.
- ^ a b "9617 Grahamchapman (1993 FA5)". Minor Planet Center. Retrieved 8 September 2016.
- ^ "MPC/MPO/MPS Archive". Minor Planet Center. Retrieved 8 September 2016.
External links
- Uppsala–ESO Survey of Asteroids and Comets
- Asteroids with Satellites, Robert Johnston, johnstonsarchive.net
- Ondrejov Asteroid Photometry Project
- Asteroid Lightcurve Database (LCDB), query form (info Archived 16 December 2017 at the Wayback Machine)
- Dictionary of Minor Planet Names, Google books
- Asteroids and comets rotation curves, CdR – Observatoire de Genève, Raoul Behrend
- Discovery Circumstances: Numbered Minor Planets (5001)-(10000) – Minor Planet Center
- 9617 Grahamchapman at AstDyS-2, Asteroids—Dynamic Site
- 9617 Grahamchapman at the JPL Small-Body Database
