2253 Espinette
| Discovery | |
|---|---|
| 12.8[1] · 13.13±0.12[4][5][8] · 16.06±0.31[9] | |
2253 Espinette, provisional designation 1932 PB, is a stony
Mars-crosser from the innermost regions of the asteroid belt, approximately 7 kilometers in diameter. Discovered by George Van Biesbroeck
in 1932, the asteroid was named after the discoverer's residence "Espinette".
Discovery
Espinette was discovered on 30 July 1932, by Belgian–American astronomer
precoveries were taken. The asteroid's observation arc begins a few days after its official discovering observation.[3]
Orbit and classification
The asteroid orbits the Sun in the inner main-belt at a distance of 1.6–2.9 AU once every 3 years and 5 months (1,260 days). Its orbit has an eccentricity of 0.28 and an inclination of 4° with respect to the ecliptic.[1]
Physical characteristics
In the
SMASS taxonomic scheme, Espinette is classified as a Sl-subtype, which transitions from the common S-type asteroids to the much redder L-type asteroids.[1]
Rotation period
Several rotational
U=3).[a]
In August 2015, another observation by
Diameter and albedo
The Collaborative Asteroid Lightcurve Link assumes a standard
albedo for stony asteroids of 0.20 and derives a diameter of 7.0 kilometers.[4]
Naming
This
M.P.C. 6059).[10]
Notes
- ^ a b Skiff (2011) web: rotation period 7.442±0.002 hours with a brightness amplitude of 0.25 mag and an LCDB-quality code of 3. Summary figures at Collaborative Asteroid Lightcurve Link (CALL) for (2253) Espinette
References
- ^ a b c d e f g "JPL Small-Body Database Browser: 2253 Espinette (1932 PB)" (2017-04-28 last obs.). Jet Propulsion Laboratory. Retrieved 12 June 2017.
- ^ ISBN 978-3-540-00238-3.
- ^ a b c "2253 Espinette (1932 PB)". Minor Planet Center. Retrieved 19 May 2016.
- ^ a b c d e "LCDB Data for (2253) Espinette". Asteroid Lightcurve Database (LCDB). Retrieved 19 May 2016.
- ^ Bibcode:1995LPI....26.1511W. Retrieved 19 May 2016.
- ^ a b Behrend, Raoul. "Asteroids and comets rotation curves – (2253) Espinette". Geneva Observatory. Retrieved 19 May 2016.
- ^ ISSN 1052-8091. Retrieved 19 May 2016.
- . Retrieved 19 May 2016.
- . Retrieved 19 May 2016.
- ^ "MPC/MPO/MPS Archive". Minor Planet Center. Retrieved 19 May 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
- 2253 Espinette at AstDyS-2, Asteroids—Dynamic Site
- 2253 Espinette at the JPL Small-Body Database
