(527603) 2007 VJ305
| Discovery[1][2] | |
|---|---|
| Discovered by | A. C. Becker A. W. Puckett J. Kubica |
| Discovery site | Apache Point Obs. |
| Discovery date | 4 November 2007 |
| Designations | |
| (527603) 2007 VJ305 | |
| 2007 VJ305 | |
| TNO[3] · ESDO[4] p-DP[5] · ETNO distant[1] | |
| Orbital characteristics[3] | |
| Epoch 27 April 2019 (JD 2458600.5) | |
| Uncertainty parameter 2 | |
| Observation arc | 17.19 yr (6,278 d) |
| Aphelion | 346.97 AU |
| Perihelion | 35.147 AU |
| 191.06 AU | |
| Eccentricity | 0.8160 |
| 2640.9 yr (964,601 d) | |
| 1.8326° | |
| 0° 0m 1.44s / day | |
| Inclination | 11.993° |
| 24.377° | |
| 338.10° | |
| Neptune MOID | 5.4 AU[1] |
| Physical characteristics | |
Mean diameter | 202 km (est.)[4] 279 km (est.)[5] |
| 0.04 (assumed)[5] 0.09 (assumed)[4] | |
| IR[4] B–I = 1.960[6] B–R = 1.440[6] R–I = 0.520[6] V–R = 0.520[6] | |
| 6.9[1][3] | |
(527603) 2007 VJ305 (provisional designation 2007 VJ305) is an extreme trans-Neptunian object from the extended scattered disc on a highly eccentric orbit in the outermost region of the Solar System. It measures approximately 250 kilometers (160 miles) in diameter and is "possibly" a dwarf planet. The rather reddish extended scattered disc object belongs to the group of extreme trans-Neptunian objects. It was discovered on 4 November 2007 by astronomers Andrew Becker, Andrew Puckett and Jeremy Kubica at the Apache Point Observatory in New Mexico, United States.[1][2]
Orbit and classification[edit]
2007 VJ305 orbits the Sun at a distance of 35.1–347 AU once every 2640 years and 11 months (964,601 days; semi-major axis of 191.1 AU). Its orbit has an exceptionally high eccentricity of 0.82 and an inclination of 12° with respect to the ecliptic.[3] The body's observation arc begins with a precovery taken during the Sloan Digital Sky Survey at Apache Point in November 2000.[1] It has a minimum orbital intersection distance with Neptune of 5.4 AU.[1]
It belongs to a small group of detached objects with perihelion distances of 30 AU or more, and semi-major axes of 150 AU or more.[7] These extreme trans-Neptunian objects (ETNOs) can not reach such orbits without some perturbing object, which lead to the speculation of Planet Nine.
Numbering and naming[edit]
2007 VJ305 was numbered by the Minor Planet Center on 18 May 2019 (M.P.C. 114650).[8] As of 2019, it has not been named.[1]
Physical characteristics[edit]
2007 VJ305's color is rather reddish with an intermediary IR spectral type and a B–R color index of 1.44.[4][6]
Diameter and albedo[edit]
According to the Johnston's archive and to American astronomer Michael Brown, 2007 VJ305 measures 202 and 279 kilometers in diameter based on an assumed albedo of 0.09 and 0.04, respectively.[4][5] On his website, Michael Brown lists this object as "possibly" a dwarf planet (200–400 km) which is the least certain class in his 5-class taxonomic system.[5]
Rotation period and shape[edit]
As of 2019, no rotational lightcurve of has been obtained from photometric observations. The body's rotation period, pole and shape remain unknown.[3][9]
See also[edit]
References[edit]
- ^ a b c d e f g h "(527603) 2007 VJ305". Minor Planet Center. Retrieved 29 May 2019.
- ^ a b "List Of Centaurs and Scattered-Disk Objects". Minor Planet Center. Retrieved 25 October 2018.
- ^ a b c d e "JPL Small-Body Database Browser: (2007 VJ305)" (2018-02-04 last obs.). Jet Propulsion Laboratory. Retrieved 29 May 2019.
- ^ a b c d e f "List of Known Trans-Neptunian Objects". Johnston's Archive. 7 October 2018. Retrieved 25 October 2018.
- ^ a b c d e Brown, Michael E. "How many dwarf planets are there in the outer solar system?". California Institute of Technology. Retrieved 25 October 2018.
- ^ a b c d e "Asteroid 2007 VJ305". Small Bodies Data Ferret. Retrieved 25 October 2018.
- ^ "Database Query: objects q>30, a>150". Minor Planet Center. Retrieved 25 October 2018.
- ^ "MPC/MPO/MPS Archive". Minor Planet Center. Retrieved 29 May 2019.
- ^ "LCDB Data for (2007+VJ305)". Asteroid Lightcurve Database (LCDB). Retrieved 25 October 2018.
External links[edit]
- List Of Centaurs and Scattered-Disk Objects, Minor Planet Center
- (527603) 2007 VJ305 at AstDyS-2, Asteroids—Dynamic Site
- (527603) 2007 VJ305 at the JPL Small-Body Database
