astro.wikisort.org - Asteroid

(15807) 1994 GV₉, provisional designation 1994 GV₉, is a trans-Neptunian object from the classical Kuiper belt located in the outermost region of the Solar System. The cubewano belongs to the orbitally unexcited cold population.[6] It was discovered on 15 April 1994, by astronomers David Jewitt and Jun Chen at the Mauna Kea Observatories, near Hilo, Hawaii.

(15807) 1994 GV₉

Discovery[1][2]
Discovered by	D. C. Jewitt J. Chen
Discovery site	Mauna Kea Obs.
Discovery date	15 April 1994
Designations
MPC designation	(15807) 1994 GV9
Alternative designations	1994 GV9
Minor planet category	TNO[3] · cubewano[4][5] cold[6]
Orbital characteristics[3]
Epoch 27 April 2019 (JD 2458600.5)
Uncertainty parameter 4 excite_mean = 0.077[4]
Observation arc	20.88 yr (7,627 d)
Aphelion	46.540 AU
Perihelion	41.328 AU
Semi-major axis	43.934 AU
Eccentricity	0.0593
Orbital period (sidereal)	291.21 yr (106,365 d)
Mean anomaly	73.373°
Mean motion	0° 0m 12.24s / day
Inclination	0.5594°
Longitude of ascending node	176.57°
Argument of perihelion	309.63°
Physical characteristics
Mean diameter	101 km[6] 147 km[5]
Geometric albedo	0.09–0.2 (assumed)[6][5]
Absolute magnitude (H)	7.4[1][3]

Description

As of 2018^[update], it is 43.3 AU from the Sun.[7] Currently, the closest approach possible to Neptune (MOID) is 11.2 AU (1.68 billion km).[1] Very little is known about the object. Based on the brightness and distance, it is estimated to be between 100 and 150 km in diameter depending on the albedo.

1994 GV₉ is the second cubewano to be given an official Minor Planet Center catalog number.[2] The first cubewano is 15760 Albion.

References

External links

• List of Transneptunian Objects, Minor Planet Center
• (15807) 1994 GV9 at AstDyS-2, Asteroids—Dynamic Site
  • Ephemeris · Observation prediction · Orbital info · Proper elements · Observational info
• (15807) 1994 GV9 at the JPL Small-Body Database
  • Close approach · Discovery · Ephemeris · Orbit diagram · Orbital elements · Physical parameters

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