110P/Hartley 3

Japanese version
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Updated on April 16, 2023


* Profile

It does not become very much bright even getting closer to the sun. However, it suddenly starts brightening very rapidly several months prior to the perihelion passage, and reaches to the maximum brightness only within two months or so.

In 2008, the beginning of the rapid brightening was delayed and the maximum brightness was fainter than 2001.

Kazuo Kinoshita's calculation revealed that it passed 0.87 A.U. from Jupiter in 1984, and the perihelion distance was reduced from 2.7 A.U. down to 2.45 A.U. However, it passes only 0.71 A.U. from Jupiter again in 2023, and the perihelion distance will be increased up to 2.8 A.U.

The current feature to brighten rapidly may disappear in the future returns after 2035, and the comet may be much fainter than now.

Kazuo Kinoshita's calculation revealed that it passes 0.63 A.U. from Jupiter in 2091, and the perihelion distance will be reduced down to 2.45 A.U. again.

* Returns and Appearances

!Discovered *Appeared -Not observed #Appeared before discovery +Not observed before discovery .Returns in the future
2028 Aug. 23
* 110P
2021 Oct. 18
* 110P
2014 Dec. 17
* 110P
2008 Feb. 3
* 110P
2001 Mar. 21
* 110P/1993 M1
1994 May 20
! 110P/1988 D1
1987 July 15


The perihelion dates in the past appearances are printed on Catalog of Cometary Orbits 1996.
Information on the discovery and historical highlights are available at General Comet Info (Gary W. Kronk).
The past and future orbital elements calculated by Kazuo Kinoshita (http://www9.ocn.ne.jp/~comet/pcmtn/0110p.htm).


Copyright(C) Seiichi Yoshida (comet@aerith.net). All rights reserved.