January 1973 lunar eclipse

A penumbral lunar eclipse took place on Thursday, January 18, 1973, the first of four lunar eclipses in 1973, the second being with a penumbral lunar eclipse on Friday, June 15, the third being with a penumbral lunar eclipse on Sunday, July 15, and the last being with a partial lunar eclipse on Monday, December 10.^[1]

Visibility[]

Relation to other lunar eclipses[]

Eclipses in 1973[]

An annular solar eclipse on Thursday, 4 January 1973.
A penumbral lunar eclipse on Thursday, 18 January 1973.
A penumbral lunar eclipse on Friday, 15 June 1973.
A total solar eclipse on Saturday, 30 June 1973.
A penumbral lunar eclipse on Sunday, 15 July 1973.
A partial lunar eclipse on Monday, 10 December 1973.
An annular solar eclipse on Monday, 24 December 1973.

Lunar year series[]

Lunar eclipse series sets from 1969–1973
Ascending node				Descending node
Saros	Date Viewing	Type Chart	Gamma	Saros	Date Viewing	Type Chart	Gamma
108	1969 Aug 27	Penumbral	-1.54066	113	1970 Feb 21	Partial	0.96198
118	1970 Aug 17	Partial	-0.80534	123	1971 Feb 10	Total	0.27413
128	1971 Aug 6	Total	-0.07944	133	1972 Jan 30	Total	-0.42729
138	1972 Jul 26	Partial	0.71167	143	1973 Jan 18	Penumbral	-1.08446
148	1973 Jul 15	Penumbral	1.51782

Last set	1969 Sep 25			Last set	1969 Apr 2

Next set	1973 Jun 15			Next set	1973 Dec 10

Half-Saros cycle[]

A lunar eclipse will be preceded and followed by solar eclipses by 9 years and 5.5 days (a half saros).^[2] This lunar eclipse is related to two partial solar eclipses of Solar Saros 150.