(44217) Whittle
|
Asteroid (44217) Whittle |
|
|---|---|
| Properties of the orbit ( animation ) | |
| Orbit type | Middle main belt asteroid |
| Asteroid family | Maria family |
| Major semi-axis | 2.5799 AU |
| eccentricity | 0.0631 |
| Perihelion - aphelion | 2.4171 AU - 2.7427 AU |
| Inclination of the orbit plane | 13.6420 ° |
| Length of the ascending node | 275.2332 ° |
| Argument of the periapsis | 145.5373 ° |
| Time of passage of the perihelion | October 10, 2016 |
| Sidereal period | 4.14 a |
| Mean orbital velocity | 18.54 km / s |
| Physical Properties | |
| Medium diameter | 8.039 km (± 0.178) |
| Albedo | 0.172 (± 0.023) |
| Rotation period | 9.7 (± 30%) h |
| Absolute brightness | 13.1 mag |
| history | |
| Explorer | John Broughton |
| Date of discovery | August 12, 1998 |
| Another name | 1998 PO 1 |
| Source: Unless otherwise stated, the data comes from JPL Small-Body Database Browser . The affiliation to an asteroid family is automatically determined from the AstDyS-2 database . Please also note the note on asteroid items. | |
(44217) Whittle is an asteroid of the main middle belt discovered on August 12, 1998 by the Australian amateur astronomer John Broughton at the Reedy Creek Observatory ( IAU code 428). The observatory is located in the district of Reedy Creek the city of Gold Coast in Queensland .
The asteroid belongs to the Maria family, a group of asteroids named after (170) Maria . According to the SMASS classification ( Small Main-Belt Asteroid Spectroscopic Survey ), a spectroscopic study by Gianluca Masi , Sergio Foglia and Richard P. Binzel at (44217) Whittle assumed a bright surface, so it could, roughly speaking, be around trade an S asteroid .
The rotation period of (44217) Whittle was examined on January 9th and 10th, 2009 by the Slovak astronomer Adrián Galád with the 60 cm reflector telescope of the Modra Observatory of the Comenius University Bratislava in Modra . The asteroid was in the same frame as the asteroid of the outer main belt from the Eos family (27204) 1999 CY 74 . The two asteroids have an almost identical amplitude of the light curve and rotation period, which was determined to be 9.7 (± 30%) hours.
(44217) Whittle was named on February 19, 2006 after the English pilot Frank Whittle, who, along with Hans Joachim Pabst von Ohain, is considered to be the inventor of the jet engine .
See also
Web links
- (44217) Whittle in the database of the "Asteroids - Dynamic Site" (AstDyS-2, English).
- (44217) Whittle in the Small-Body Database of the Jet Propulsion Laboratory (English).
- Discovery Circumstances of (44217) Whittle according to the Minor Planet Center of the International Astronomical Union at the Harvard-Smithsonian Center for Astrophysics in Cambridge , Massachusetts (English)
Individual evidence
- ↑ Family affiliation of (44217) Whittle in the AstDyS-2 database (English)
- ^ Gianluca Masi, Sergio Foglia, Richard P. Binzel: Search for Unusual Spectroscopic Candidates Among 40313 minor planets from the 3rd Release of the Sloan Digital Sky Survey Moving Object Catalog . (English)
- ↑ subdivision of asteroids to S-types, C-types and V-types (English)
- ^ Adrián Galád: Byproduct Targets During Photometric Observations from Modra . The Minor Planet Bulletin, Vol. 36, No. 4, 10/2009, pages 183–186, bibcode : 2009MPBu ... 36..183G (English)