(95626) 2002 GZ32

(95626) 2002 GZ32
2002 GZ32 imaged by the Hubble Space Telescope on 26 February 2008
Discovery
Discovered byMauna Kea Obs.
Discovery siteMauna Kea Obs.
Discovery date13 April 2002
Designations
(95626) 2002 GZ32
centaur · distant
Orbital characteristics
Epoch 5 May 2025 (JD 2460800.5)
Uncertainty parameter 0
Observation arc30.33 yr
Earliest precovery date29 March 1995
Aphelion27.991 AU
Perihelion18.003 AU
22.997 AU
Eccentricity0.2171
110.28 yr (40,281 days)
18.718°
0° 0m 32.174s / day
Inclination15.046°
107.295°
10 August 2019
155.376°
Known satellites0
Saturn MOID7.987 AU
Uranus MOID1.400 AU
Neptune MOID2.347 AU
Physical characteristics
Dimensions366 × 306 × 120 km
218±12 km (area equivalent)
5.80±0.03 h
0.043±0.007
  • BR (TNO color class)
  • B−V = 0.63±0.05
  • V−R = 0.46±0.03
  • V−I = 0.92±0.05
~20
7.39±0.06

(95626) 2002 GZ32 (provisional designation 2002 GZ32) is a centaur orbiting the Sun between Saturn and Neptune in the outer Solar System. It is one of the largest known centaurs, having a highly elongated shape that spans 366 km (227 mi) across its longest width to 120 km (75 mi) across its shortest. The object was discovered on 13 April 2002 by astronomers at Mauna Kea Observatory in Hawaiʻi.

Due to 2002 GZ32's highly elongated shape, its apparent brightness oscillates as it rotates every 5.8 hours. 2002 GZ32 has a dark gray surface that potentially contains water ice. It was the third centaur whose stellar occultation has been simultaneously observed by multiple people, after 10199 Chariklo and 2060 Chiron.