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65P/Gunn

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Periodic comet with 6 year orbit
65P/Gunn
Discovery
Discovered byJames E. Gunn
Discovery dateOctober 17, 1970
Designations
Alternative designations1969 II; 1976 III; 1982 X;
1989 XI;
Orbital characteristics
EpochMarch 6, 2006
Aphelion4.737 AU
Perihelion2.444 AU
Semi-major axis3.59 AU
Eccentricity0.3194
Orbital period6.803 a
Inclination10.3867°
Last perihelionOctober 16, 2017
March 2, 2010
May 11, 2003
Next perihelion2025-Jun-16

65P/Gunn is a periodic comet in the Solar System which has a current orbital period of 6.79 years. The comet is a short-period comet, orbiting the Sun every 6.79 years inside the main asteroid belt between the orbits of the planets Mars and Jupiter.

It was discovered on 11 October 1970 by Professor James E. Gunn of Princeton University using the 122-cm Schmidt telescope at the Palomar Observatory. It had a low brightness of magnitude 16 plus which improves to 12 under favourable conditions. In 1972 Elizabeth Roemer managed to observe 65P/Gunn close to aphelion.

On 4 February 1970 the comet passed 0.015 AU (2,200,000 km; 1,400,000 mi) from Ceres.

In 1980 was noticed that a 19th magnitude comet found in plates obtained by Palomar Observatory on 8 August 1954 was a previous apparition of 65/Gunn. The link was confirmed by Brian G. Marsden.

See also

References

  1. Syuichi Nakano (2010-06-19). "65P/Gunn (NK 1941)". OAA Computing and Minor Planet Sections. Retrieved 2012-02-18.
  2. MPC
  3. "WISE Catches Comet 65P/Gunn". Jet Propulsion Laboratory. Retrieved 26 November 2014.
  4. Marsden, B.G (December 1973). "Comets in 1972". Quarterly Journal of the Royal Astronomical Society. 14: 390–391. Bibcode:1973QJRAS..14..389M. Retrieved 2 September 2020.
  5. "JPL Close-Approach Data: 65P/Gunn" (2012-1-25 last obs). Retrieved 2012-02-23.
  6. Green, Daniel (17 November 1980). "IAUC 3540: AG Dra; COMET ON PSS; (1865); 1980h". www.cbat.eps.harvard.edu. International Astronomical Union Circular. Retrieved 20 April 2023.
  7. Marsden, Brian (31 March 1981). "IAUC 3588: P/GUNN; 1981 CW". International Astronomical Union Circular. Retrieved 20 April 2023.

External links


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64P/Swift–Gehrels 		65P/Gunn Next
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