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C/1992 J1 (Spacewatch)

Non-periodic comet

Summary

Non-periodic comet

Field	Value
name	C/1992 J1 (Spacewatch)
image	CometSpacewatch.png
caption	Simulated orbit of C/1992 J1 (Spacewatch) as of 12 January 2012
discovery_ref
discoverer	David Rabinowitz
Spacewatch Project
discovery_site	Kitt Peak Observatory
discovery_date	1 May 1992
designations	1992h
1993 XV
orbit_ref
epoch	3 August 1993 (JD 2449202.5)
observation_arc	1,007 days (2.76 years)
obs	240
perihelion	3.007 AU
aphelion	~75,000 AU (inbound)
~3,700 AU (outbound)
eccentricity	0.99996
period	~78,000 years (outbound)
inclination	124.32°
asc_node	203.32°
arg_peri	83.40°
tjup	–1.212
Earth_moid	2.541 AU
Jupiter_moid	0.127 AU
M1	8.3
M2	14.2
last_p	6 September 1993

Spacewatch Project 1993 XV ~3,700 AU (outbound)

C/1992 J1 (Spacewatch) is a comet that was discovered 1 May 1992 by David Rabinowitz of the Spacewatch Project. This was the first comet to be discovered using an automated system.

Orbit

Using a generic heliocentric (two-body) solution calculated near the time of perihelion (closest approach to the Sun), it is estimated to have an aphelion (Q) (furthest distance from the Sun) of 154202 AU. But the orbit of a long-period comet is properly obtained when the osculating orbit is computed at an epoch after leaving the planetary region and is calculated with respect to the center of mass of the Solar System. After leaving the planetary region of the Solar System, the post-perihelion orbital period is estimated to be about 78,000 years with aphelion around 3,650 AU. In 2007 it reached more than 30 AU from the Sun.

References

| access-date= 31 January 2010 }}

| access-date= 15 April 2009

| access-date= 15 April 2009 | archive-date= 29 October 2008 | archive-url= https://web.archive.org/web/20081029054125/http://spacewatch.lpl.arizona.edu/outerss_text.html | url-status= dead }}

Wikipedia Source

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non-periodic-comets discoveries-by-the-spacewatch-project 1992-in-science astronomical-objects-discovered-in-1992

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