62P/Tsuchinshan

62P/Tsuchinshan, also known as Tsuchinshan 1, is a periodic comet discovered on 1965 January 1 at Purple Mountain Observatory, Nanking.[6] It will next come to perihelion on 25 December 2023 at around apparent magnitude 8,[2] and will be 0.53 AU (79 million km) from Earth and 110 degrees from the Sun.[4]

62P/Tsuchinshan 1
NEOWISE image 14 January 2018
Discovery
Discovered byPurple Mountain Observatory, Nanking
Discovery dateJanuary 1, 1965
Orbital characteristics
Epoch2024-01-11[1]
(JD 2460320.5)
Aphelion5.472 AU (Q)
Perihelion1.265 AU (q)
Semi-major axis3.369 AU (a)
Eccentricity0.6245
Orbital period6.18 yr
Inclination10.50°
Last perihelion2017-Nov-16[1]
2011-Jun-30[2][3]
(unobserved)
Next perihelion2023-Dec-25[1][4]
Perihelion distance
at different epochs[5]
EpochPerihelion
(AU)
18002.45
18592.11
18822.04
19051.96
19651.49
20111.38
20231.26
20941.21
21061.15

During the 2004 perihelion passage the comet brightened to about apparent magnitude 11.[7] The comet was not observed during the 2011 unfavorable apparition since the perihelion passage occurred when the comet was on the far side of the Sun.

On 2049 April 1 the comet will pass about 0.016 AU (2,400,000 km; 1,500,000 mi) from Mars.[6]

62P/Tsuchinshan closest Mars approach on 2049-Apr-01[6]
Date & time of
closest approach		 Mars distance
(AU)		 Sun distance
(AU)		 Velocity
wrt Mars
(km/s)		 Velocity
wrt Sun
(km/s)		 Uncertainty
region
(3-sigma)		 Reference
2049-Apr-01 16:38 ± 14 minutes0.0157 AU (2.35 million km; 1.46 million mi; 6.1 LD)1.53 AU (229 million km; 142 million mi)12.030.0± 11 thousand kmHorizons

See also

References
  1. "62P/Tsuchinshan Orbit". Minor Planet Center. Retrieved 2014-06-16.
  2. Seiichi Yoshida (2010-11-28). "62P/Tsuchinshan 1". Seiichi Yoshida's Comet Catalog. Retrieved 2012-03-02.
  3. Syuichi Nakano (2008-05-04). "62P/Tsuchinshan 1 (NK 1604)". OAA Computing and Minor Planet Sections. Retrieved 2012-03-02.
  4. "Horizons Batch for 62P/Tsuchinshan 1 (90000670) on 2023-Dec-25" (Perihelion occurs when rdot flips from negative to positive). JPL Horizons. Archived from the original on 2022-06-27. Retrieved 2023-07-06. (JPL#K174/12 Soln.date: 2023-May-04)
  5. Kinoshita, Kazuo (2017-10-09). "62P/Tsuchinshan past, present and future orbital elements". Comet Orbit. Archived from the original on 2012-03-07. Retrieved 2023-08-16.
  6. "JPL Small-Body Database Browser: 62P/Tsuchinshan 1" (last observation: 2005-06-07; arc: 20.75 years). Jet Propulsion Laboratory. Archived from the original on 2012-12-13. Retrieved 2012-03-02.
  7. Seiichi Yoshida (2005-06-10). "62P/Tsuchinshan 1 (2004)". Seiichi Yoshida's Comet Catalog. Retrieved 2012-03-02.


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