1622 Chacornac
| Discovery Synodic rotation period | 11.485±0.006 h[6] 12.2044±0.0041 h[7] 12.206±0.002 h[8] 12.2190±0.0116 h[7] | |
|---|---|---|
| 0.224±0.030[5] 0.24 (assumed)[3] 0.360±0.042[4] | ||
| S[3][9] | ||
| 11.954±0.001 (R)[7] · 12.040±0.001 (R)[7] · 12.04±1.25[9] · 12.10[4] · 12.2[1][3][5] | ||
1622 Chacornac (
provisional designation 1952 EA) is a stony Flora asteroid from the inner regions of the asteroid belt, approximately 9 kilometers in diameter. It was discovered on 15 March 1952, by French astronomer Alfred Schmitt at the Royal Observatory of Belgium in Uccle, and named after astronomer Jean Chacornac.[2][10]
Orbit and classification
The S-type asteroid is a member of the Flora family, one of the largest groups of stony asteroids. It orbits the Sun in the inner main-belt at a distance of 1.9–2.6 AU once every 3 years and 4 months (1,220 days). Its orbit has an eccentricity of 0.16 and an inclination of 6° with respect to the ecliptic.[1] The first precovery was taken at Lowell Observatory in 1930, extending Chacornac's observation arc by 22 years prior to its official discovery observation.[10]
Lightcurves
Between 2009 and 2013, several rotational
Diameter and albedo
According to the survey carried out by the Japanese
NEOWISE mission gave a diameter of 8.4 kilometers and a high albedo of 0.36.[4] The Collaborative Asteroid Lightcurve Link agrees with the results obtained by AKARI and assumes an albedo of 0.24 – derived from 8 Flora, the family's largest member and namesake – and calculates a diameter of 9.9 kilometers with an absolute magnitude of 12.2.[3]
Naming
This
M.P.C. 4418).[11]
References
- ^ a b c d "JPL Small-Body Database Browser: 1622 Chacornac (1952 EA)" (2016-11-19 last obs.). Jet Propulsion Laboratory. Retrieved 30 June 2017.
- ^ ISBN 978-3-540-00238-3.
- ^ a b c d e f "LCDB Data for (1622) Chacornac". Asteroid Lightcurve Database (LCDB). Retrieved 1 August 2016.
- ^ . Retrieved 1 August 2016.
- ^ )
- ^ a b Behrend, Raoul. "Asteroids and comets rotation curves – (1622) Chacornac". Geneva Observatory. Retrieved 1 August 2016.
- ^ . Retrieved 1 August 2016.
- ^ ISSN 1052-8091. Retrieved 1 August 2016.
- ^ . Retrieved 1 August 2016.
- ^ a b "1622 Chacornac (1952 EA)". Minor Planet Center. Retrieved 1 August 2016.
- ISBN 978-3-642-01964-7.
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
- 1622 Chacornac at AstDyS-2, Asteroids—Dynamic Site
- 1622 Chacornac at the JPL Small-Body Database
