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62P/Tsuchinshan, also known as Tsuchinshan 1, is a periodic comet first discovered January 1, 1965 at the Purple Mountain Observatory in Nanking. It last came to perihelion on 25 December 2023 at around apparent magnitude 8, and was then 0.53 AU (79 million km) from Earth and 110 degrees from the Sun.
79P/du Toit–Hartley or du Toit 2 is a periodic comet, now divided into two parts, in the Solar System with an orbital period of 5.06 years. It next comes to perihelion in September 2023 but is only expected to reach about apparent magnitude 18. It will be less than 90 degrees from the Sun from February 2023 until June 2024. On 26 May 2024 it will be 2.7 AU from the Sun and Earth.
References
- 1 2 3 Seiichi Yoshida (2004-02-21). "20D/Westphal". Seiichi Yoshida's Comet Catalog. Retrieved 2012-02-20.
- ↑ "Horizons Batch for 20D/Westphal (90000306) on 2038-May-04" (Perihelion occurs when rdot flips from negative to positive). JPL Horizons . Retrieved 2023-02-11. (JPL#19 Soln.date: 2003-Apr-11)
- ↑ "JPL Small-Body Database Browser: 20D/Westphal" (1913-10-13 last obs). Jet Propulsion Laboratory . Retrieved 2012-07-26.
- 1 2 3 4 5 Sekanina, Z. (April 1984). "Disappearance and disintegration of comets". Icarus. 58 (1): 81–100. Bibcode:1984Icar...58...81S. doi: 10.1016/0019-1035(84)90099-X .
