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C/2013 R1 (Lovejoy)

From Wikipedia, the free encyclopedia

For other comets discovered by Terry Lovejoy, see Comet Lovejoy.

C/2013 R1 (Lovejoy)
C/2013 R1 on 28 November 2013, three-minute exposure using a 6" refractor
Discovery
Discovered byTerry Lovejoy
(Thornlands, Qld., Australia)[1]
Discovery date7 September 2013
Orbital characteristics
Epoch14 December 2013[2]
Aphelion~830 AU (epoch 2200)[3]
Perihelion0.8118 AU (q)[2]
Eccentricity0.9984[2]
Orbital period~6,900 yr (epoch 1800)
~8,500 yr (epoch 2200)[3]
Inclination64.04°[2]
Last perihelion22 December 2013[2]

C/2013 R1 (Lovejoy) is a long-period comet discovered on 7 September 2013 by Terry Lovejoy using a 0.2-meter (8 in) Schmidt–Cassegrain telescope.[1] It is the fourth comet discovered by Terry Lovejoy. C/2013 R1 crossed the celestial equator on 14 October 2013, becoming a better Northern Hemisphere object.

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History

By 1 November 2013, the comet was visible to the naked eye near the Beehive Cluster (M44), about halfway between Jupiter and Regulus.[4] It became more impressive than comet ISON.[5] In binoculars, the comet has the appearance of a green, unresolved globular cluster.

C/2013 R1 made its closest approach to Earth on 19 November 2013 at a distance of 0.3967 AU (59,350,000 km; 36,880,000 mi),[6] and reached an apparent magnitude of about 4.5.[7] On 27 November 2013 the comet was in the constellation of Canes Venatici, near the bottom of the handle of the Big Dipper. From 28 November until 4 December 2013, the comet was in the constellation Boötes. On 1 December 2013 it passed the star Beta Boötis.[8] From 4 December until 12 December 2013, the comet was in the constellation Corona Borealis.

From 12 December until 14 January 2014, the comet was in the constellation Hercules. On 14 December 2013, it passed the star Zeta Herculis.[8] The comet came to perihelion (closest approach to the Sun) on 22 December 2013 at a distance of 0.81 AU (121,000,000 km; 75,000,000 mi) from the Sun.[2] At perihelion, the comet had an elongation of 51 degrees from the Sun. By September 2014, the comet had fainted to magnitude 18.[9]

References

  1. ^ a b "MPEC 2013-R72 : COMET C/2013 R1 (LOVEJOY)". IAU Minor Planet Center. 9 September 2013. Retrieved 10 November 2013. (CK13R010)
  2. ^ a b c d e f "MPEC 2013-V48: Observations and Orbits of Comets". IAU Minor Planet Center. 9 November 2013. Retrieved 10 November 2013.
  3. ^ a b Horizons output. "Barycentric Osculating Orbital Elements for Comet C/2013 R1 (Lovejoy)". Retrieved 30 August 2023. (Select Ephemeris Type:Elements and Center:@0)
  4. ^ "C/2013 R1 (Lovejoy)". Gary W. Kronk's Cometography. Archived from the original on 10 November 2013. Retrieved 10 November 2013.
  5. ^ Tony Flanders (8 November 2013). "The Other Great Morning Comet". Sky & Telescope. Archived from the original on 13 November 2013. Retrieved 10 November 2013.
  6. ^ "JPL Close-Approach Data: C/2013 R1 (Lovejoy)". 8 November 2013. Retrieved 10 November 2013.
  7. ^ Seiichi Yoshida (9 November 2013). "C/2013 R1 ( Lovejoy )". Seiichi Yoshida's Comet Catalog. Retrieved 10 November 2013.
  8. ^ a b King, Bob (29 November 2013). "Move over ISON, time to share the love with Comet Lovejoy". Astro Bob. Areavoices.com. Retrieved 29 November 2013.
  9. ^ "MPEC 2014-R69 : Observations and Orbits of Comets". IAU Minor Planet Center. 7 September 2014. Retrieved 20 September 2014.

External links

Media related to C/2013 R1 at Wikimedia Commons

This page was last edited on 4 November 2023, at 01:13
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