Discovered
Appeared
Not observed
Appeared before discovery
Not observed before discovery
Returns in the future
2069 Aug. 22
C/1907 G1
1907 Mar. 27
C/1742 C1
1742 Feb. 8
The perihelion dates in the past appearances are printed on Catalog of Cometary Orbits 1996.
The identification between C/1742 C1 and C/1907 G1 is published in The orbits of the comets of short period; Popular Astronomy, Vol. 36, p.274; Pickering, W. H.
The identification between C/1742 C1 and C/1907 G1 is published in "Suisei wo Ou" by Hideo Hirose, Kiichiro Furukawa, Hiroki Kosai (Chijin-Shokan, 1971).
Copyright(C) Seiichi Yoshida (comet@aerith.net). All rights reserved.