5185 Alerossi
| Discovery [1] | |
|---|---|
| Discovered by | H. E. Holt |
| Discovery site | Palomar Obs. |
| Discovery date | 15 September 1990 |
| Designations | |
| 5185 Alerossi | |
Named after | Alessandro Rossi (geodesists)[2] |
| 1990 RV2 · 1933 SE 1955 SM · 1981 RA1 1984 HG · 1986 UR4 1988 FQ3 | |
| main-belt | |
| Orbital characteristics [1] | |
| Epoch 31 July 2016 (JD 2457600.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 82.55 yr (30,153 days) |
| Aphelion | 2.9004 AU |
| Perihelion | 2.4528 AU |
| 2.6766 AU | |
| Eccentricity | 0.0836 |
| 4.38 yr (1,600 days) | |
| 259.65° | |
| 0° 13m 30s / day | |
| Inclination | 8.3779° |
| 216.42° | |
| 216.59° | |
| Earth MOID | 1.4708 AU (220.03 Gm) |
| Jupiter MOID | 2.37651 AU (355.521 Gm) |
| TJupiter | 3.358 |
| Physical characteristics | |
| Dimensions | 12.86±1.2 km IRAS:2)[1][3] |
| 0.1408±0.031 IRAS:2)[1][3] | |
| 12.5[1] | |
5185 Alerossi, provisional designation 1990 RV2, is an asteroid from the middle region of the asteroid belt, approximately 13 kilometers in diameter. It was discovered by American astronomer Henry Holt at the U.S. Palomar Observatory, California, on 15 September 1990.[4]
The asteroid orbits the Sun at a distance of 2.5–2.9 AU once every 4 years and 5 months (1,600 days). Its orbit has an eccentricity of 0.08 and an inclination of 8° with respect to the plane of the ecliptic.[1] The first precovery was taken at Uccle in 1933, extending the asteroid's observation arc by 57 years prior to its discovery.[4]
According to two observations made by the Infrared Astronomical Satellite (IRAS), the asteroid measures 12.9 kilometers in diameter and its surface has an albedo of 0.14.[3] It has an absolute magnitude of 12.5 (M.P.O. 253399, 25 February 2013).[5] As of 2016, the asteroid's spectral type, rotation period and shape remain unknown.
The minor planet was named after Italian geodesists Alessandro Rossi (b. 1964), member of the Group of Satellite Flight Dynamics at the Istituto CNECE in Pisa, Italy. Expert in space geodesy and participant in the Laser Geodynamics Satellites (LAGEOS) mission, he examines Earth's artificial orbital debris, the natural debris around mission targets to improve space-craft maneuvers, and the potential hazard of Earth-crossers.[2] Naming citation was published on 28 July 1999 (M.P.C. 61268).[5]
References
- ^ a b c d e f "JPL Small-Body Database Browser: 5185 Alerossi (1990 RV2)" (2016-04-11 last obs.). Jet Propulsion Laboratory. Retrieved 9 May 2016.
- ^ a b Schmadel, Lutz D. (2007). Dictionary of Minor Planet Names – (5185) Alerossi. Springer Berlin Heidelberg. p. 446. ISBN 978-3-540-00238-3. Retrieved 9 May 2016.
- ^ a b c Tedesco, E. F.; Noah, P. V.; Noah, M.; Price, S. D. (October 2004). "IRAS Minor Planet Survey V6.0". NASA Planetary Data System. Bibcode:2004PDSS...12.....T. Retrieved 23 December 2015.
- ^ a b "5185 Alerossi (1990 RV2)". Minor Planet Center. Retrieved 9 May 2016.
- ^ a b "MPC/MPO/MPS Archive". Minor Planet Center. Retrieved 9 May 2016.
External links
- Asteroid Lightcurve Database (LCDB), query form (info)
- Dictionary of Minor Planet Names, Google books
- Asteroids and comets rotation curves, CdR – Observatoire de Genève, Raoul Behrend
- Discovery Circumstances: Numbered Minor Planets (5001)-(10000) – Minor Planet Center
- 5185 Alerossi at the JPL Small-Body Database
