6522 Aci
Synodic rotation period | 7.6921±0.0017 h[8] | |
| 0.23 (assumed)[4] 0.392±0.029[6][7] | ||
| S (family-based)[5][4] | ||
| 12.7[6] · 13.0[3] · 13.003±0.005 (R)[8] · 13.1[1] · 13.45[4] | ||
6522 Aci (
Acis and Galatea
.
Orbit and classification
Aci is a member of the
701),[5] a relatively small group of stony asteroids with similar orbital characteristics. It orbits the Sun in the inner main-belt at a distance of 1.9–2.9 AU once every 3 years and 8 months (1,345 days). Its orbit has an eccentricity of 0.20 and an inclination of 22° with respect to the ecliptic.[3] In January 1990, the asteroid was first observed as 1990 BH4 at the German Karl Schwarzschild Observatory, extending the body's observation arc by 17 months prior to its official discovery observation at Palomar.[1]
Naming
This
M.P.C. 28090).[9]
Physical characteristics
Rotation period
In September 2010, a rotational
U=2).[8]
Diameter and albedo
According to the
albedo of 0.39,[6][7] while the Collaborative Asteroid Lightcurve Link assumes an albedo of 0.23 – which derives from 25 Phocaea, namesake and largest member of this orbital family – and calculates a diameter of 5.7 kilometers with an absolute magnitude of 13.45.[4]
References
- ^ a b c d e "6522 Aci (1991 NQ)". Minor Planet Center. Retrieved 28 April 2016.
- ^ ISBN 978-3-540-00238-3.
- ^ a b c d "JPL Small-Body Database Browser: 6522 Aci (1991 NQ)" (2017-06-06 last obs.). Jet Propulsion Laboratory. Archived from the original on 18 September 2020. Retrieved 21 June 2017.
- ^ a b c d e f "LCDB Data for (6522) Aci". Asteroid Lightcurve Database (LCDB). Retrieved 28 April 2016.
- ^ a b c "Asteroid 6522 Aci – Nesvorny HCM Asteroid Families V3.0". Small Bodies Data Ferret. Retrieved 27 October 2019.
- ^ . Retrieved 28 April 2016.
- ^ . Retrieved 5 December 2016.
- ^ . Retrieved 28 April 2016.
- ^ "MPC/MPO/MPS Archive". Minor Planet Center. Retrieved 28 April 2016.
External links
- Lightcurve Database Query (LCDB), at www.minorplanet.info
- Dictionary of Minor Planet Names, Google books
- Asteroids and comets rotation curves, CdR – Geneva Observatory, Raoul Behrend
- Discovery Circumstances: Numbered Minor Planets (5001)-(10000) – Minor Planet Center
- 6522 Aci at AstDyS-2, Asteroids—Dynamic Site
- 6522 Aci at the JPL Small-Body Database
