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C/2012 X1 (LINEAR)

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(Redirected from C/2012 X1) Non-periodic comet For other comets of the same name, see List of comets discovered by the LINEAR project.
C/2012 X1 (LINEAR)
The comet on 18 May 2014 by NEOWISE
Discovery
Discovered byLINEAR
Discovery siteSocorro, New Mexico
Discovery date8 December 2012
Designations
Alternative designationsCK12X010
Orbital characteristics
Epoch18 December 2013 (JD 2456644.5)
Observation arc1,038 days (2.84 years)
Aphelion305.1 AU
Perihelion1.599 AU
Semi-major axis153.33 AU
Eccentricity0.98957
Orbital period~1,900 years
Max. orbital speed33.2 km/s
Inclination44.367°
Longitude of
ascending node		113.146°
Argument of
periapsis		132.114°
Last perihelion21 February 2014
TJupiter1.152
Earth MOID0.752 AU
Jupiter MOID1.066 AU
Physical characteristics
Comet total
magnitude (M1)		5.5
Comet nuclear
magnitude (M2)		10.8
Apparent magnitude8.5
(2013 apparition)

Comet LINEAR, formal designation C/2012 X1, is a non-periodic comet that was observed telescopically from 2012 to 2015. It produced a powerful outburst on 21 October 2013, which raised its brightness 100 times its expected magnitude from 12 to 8.5 for several months.

Discovery and observations

An asteroid-like object with an apparent magnitude of 19.4 was spotted with cometary activity from images taken by the Lincoln Near-Earth Asteroid Research survey on the night of 8 December 2012.

From April 2014 onwards, the comet slowly faded away as it made its way back to the outer Solar System. It was last observed from Australia as a 20th-magnitude object about 7.0 AU (1.05 billion km) from the Sun on 9 December 2015.

References

  1. ^ D. W. Green (12 December 2012). "Comet C/2012 X1 (LINEAR)". Central Bureau for Astronomical Telegrams. 3340. Bibcode:2012CBET.3340....1B.
  2. G. V. Williams (12 December 2012). "MPEC 2012-X70: Comet C/2012 X1 (LINEAR)". www.minorplanetcenter.net. Minor Planet Center. Retrieved 31 December 2024.
  3. "C/2012 X1 (LINEAR) – JPL Small-Body Database Lookup". ssd.jpl.nasa.gov. Jet Propulsion Laboratory. Retrieved 3 January 2024.
  4. D. Dickinson (23 October 2013). "Comet LINEAR Suddenly Brightens with Outburst: How to See It". Universe Today. Retrieved 31 December 2024.

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