Astronomy:(24952) 1997 QJ4
From HandWiki
| Discovery | |
|---|---|
| Discovered by | Jane X. Luu, Chad Trujillo, David C. Jewitt, and K. Berney |
| Discovery date | 28 August 1997 |
| Designations | |
| (24952) 1997 QJ4 | |
| Minor planet category | plutino (TNO) |
| Orbital characteristics[1] | |
| Epoch 13 January 2016 (JD 2457400.5) | |
| Uncertainty parameter 3 | |
| Observation arc | 4048 days (11.08 yr) |
| |{{{apsis}}}|helion}} | 48.082 astronomical unit|AU (7.1930 Tm) |
| |{{{apsis}}}|helion}} | 30.421 AU (4.5509 Tm) |
| 39.252 AU (5.8720 Tm) | |
| Eccentricity | 0.22497 |
| Orbital period | 245.92 yr (89822.9 d) |
| Mean anomaly | 337.14° |
| Mean motion | 0° 0m 14.428s / day |
| Inclination | 16.590° |
| Longitude of ascending node | 346.92° |
| 82.613° | |
| Earth MOID | 29.4765 AU (4.40962 Tm) |
| Jupiter MOID | 25.6287 AU (3.83400 Tm) |
| Physical characteristics | |
| Dimensions | 139 km |
| Geometric albedo | 0.09 (assumed) |
| Absolute magnitude (H) | 7.6 |
(24952) 1997 QJ4 (provisional designation 1997 QJ4) is a plutino and as such, it is trapped in a 2:3 mean-motion resonance with Neptune. It was discovered on 28 August 1997, by Jane X. Luu, Chad Trujillo, David C. Jewitt and K. Berney. This object has a perihelion (closest approach to the Sun) at 30.463 AU and an aphelion (farthest approach from the Sun) at 48.038 AU, so it moves in a relatively eccentric orbit (0.224). It has an estimated diameter of 139 km; therefore, it is unlikely to be classified as a dwarf planet.[2]
References
Sources
- List of Trans Neptunian Objects, Minor Planet Center
- Another list of TNOs at johnstonsarchive
External links
- 1997 QJ4, Luu, J. X., Trujillo, C., Jewitt, D., Berney, K., Williams, G. V. 1997, Minor Planet Electronic Circular, 1997-R09
- Close Approaches of Trans-Neptunian Objects to Pluto Have Left Observable Signatures on Their Orbital Distribution, Nesvorný, D., Roig, F., Ferraz-Mello, S. 2000, The Astronomical Journal, Volume 119, Issue 2, pp. 953–969
- Search for Cometary Activity in KBO (24952) 1997 QJ4, Meech, K. J., Hainaut, O. R., Boehnhardt, H., Delsanti, A. 2003, Earth, Moon, and Planets, Volume 92, Issue 1, pp. 169–181
- (24952) 1997 QJ4 data at MPC
- (24952) 1997 QJ4 at the JPL Small-Body Database
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