3202 Graff
| Discovery Synodic rotation period | 17.32±0.02 h[5] | |
|---|---|---|
| 0.055±0.013[4] 0.057 (assumed)[3] | ||
| D [6] · C [3] | ||
| 10.9[1][3] · 11.31±0.28[6] | ||
3202 Graff, provisional designation A908 AA, is a carbonaceous Hilda
Heidelberg Observatory in southern Germany.[7] The asteroid was named after astronomer Gareth V. Williams.[2]
Orbit and classification
Graff belongs to the
Hilda family of asteroids, which are in a 3:2 orbital resonance with the giant planet Jupiter. It orbits the Sun in the outer main-belt at a distance of 3.5–4.4 AU once every 7 years and 10 months (2,853 days). Its orbit has an eccentricity of 0.11 and an inclination of 11° with respect to the ecliptic.[1] The asteroid's observation arc begins 3 weeks after its discovery with its first used observation at Heidelberg.[7]
Physical characteristics
The dark C-type asteroid is classified as a rare D-type by Pan-STARRS' large-scale survey,[6]
In July 2015, a rotational
U=3-).[5]
According to the survey carried out by NASA's
albedo of 0.055.[4] The Collaborative Asteroid Lightcurve Link assumes a standard albedo for carbonaceous asteroids of 0.057 and calculates a diameter of 36.8 kilometers with an absolute magnitude of 10.9.[3]
Naming
This minor planet was named after English-born astronomer Gareth "Graff" Vaughan Williams (born 1965), who identified various low-numbered asteroids among bodies that had been given provisional designations. His work at the Minor Planet Center (MPC) has received much recognition.[2]
The official naming citation was published by the
M.P.C. 16245),[8] based on a suggestion by long-time MPC director Brian G. Marsden (1937–2000) and by Conrad M. Bardwell (1926–2010), associate director of the MPC and who made the identification for this body.[2] The minor planets 1615 Bardwell and 1877 Marsden
were named in honor of these two prominent astronomers at the MPC.
References
- ^ a b c d e "JPL Small-Body Database Browser: 3202 Graff (A908 AA)" (2017-01-09 last obs.). Jet Propulsion Laboratory. Archived from the original on 15 September 2020. Retrieved 16 June 2017.
- ^ ISBN 978-3-540-00238-3.
- ^ a b c d e f "LCDB Data for (3202) Graff". Asteroid Lightcurve Database (LCDB). Retrieved 10 July 2016.
- ^ S2CID 44000310. Retrieved 5 December 2016.
- ^ ISSN 1052-8091. Retrieved 10 July 2016.
- ^ S2CID 53493339. Retrieved 10 July 2016.
- ^ a b "3202 Graff (A908 AA)". Minor Planet Center. Retrieved 10 July 2016.
- ^ "MPC/MPO/MPS Archive". Minor Planet Center. Retrieved 10 July 2016.
External links
- 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 (1)-(5000) – Minor Planet Center
- 3202 Graff at AstDyS-2, Asteroids—Dynamic Site
- 3202 Graff at the JPL Small-Body Database
