1995 GJ

1995 GJ

Infobox Planet
minorplanet = yes
width = 25em
bgcolour = #FFFFC0
name = 1995 GJ
symbol =


caption =
discovery = yes
discovery_ref =
discoverer =David C. Jewitt, J. Chen
discovered =April 3, 1995
mp_name =
alt_names =
mp_category =Trans-Neptunian object
(cubewano?)
orbit_ref = MPC 25185
epoch = 2449800.5 (March 24, 1995)
aphelion =46.808074 AU (Q)
perihelion =39.006389 AU (q)
semimajor =42.907232 AU (a)
eccentricity =0.090913 (assumed)cite web
date=1995 Apr. 7
title=MPEC 1995-G07: 1995 GJ
publisher=Minor Planet Center
url=http://www.cfa.harvard.edu/mpec/J95/J95G07.html
accessdate=2007-09-17
]
period =281.06 a
avg_speed =
inclination =22.9304 °
asc_node =338.9289
mean_anomaly =359.9649° (M)
arg_peri =180.2909°
satellites =
physical_characteristics = yes
dimensions =110-240 km [http://neo.jpl.nasa.gov/glossary/h.html H]
mass =
density =
surface_grav =
escape_velocity =
sidereal_day =
albedo =
spectral_type =
magnitude = 22.9 (Opposition)
abs_magnitude =7.0

1995 GJ with an inclination of 22.9° may be the first cubewano (classical KBO) discovered to have an inclination greater than 20 degrees. Most cubewanos have inclinations of less than 10 degrees.

Given the long orbit that KBOs take around the sun, 1995 GJ comes to opposition in mid March of each year at an apparent magnitude of 22.9. Unfortunately, this object was only observed six times over the two nights of 1995 April 3rd-4th and its orbit is very inaccurate.cite web
title=JPL Small-Body Database Browser: (1995 GJ)
url=http://ssd.jpl.nasa.gov/sbdb.cgi?sstr=1995GJ
accessdate=2008-05-22
] It even has an assumed eccentricity.

1995 GJ was discovered by David C. Jewitt and J. Chen at the Mauna Kea Observatory, Hawaii using the 88-inch (2.2-meter) University of Hawaii telescope.

References

External links

* [http://www.cfa.harvard.edu/iau/lists/TNOs.html List Of Transneptunian Objects]
* [http://ssd.jpl.nasa.gov/sbdb.cgi?sstr=1995GJ;orb=1;view=Far Orbital simulation] from JPL (Java) / [http://ssd.jpl.nasa.gov/horizons.cgi?find_body=1&body_group=sb&sstr=1995GJ Ephemeris]


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