A penumbral lunar eclipse took place at the Moon's descending node of the orbit on Tuesday, August 26, 1980, the last of three penumbral lunar eclipses in 1980 with a penumbral magnitude of 0.70891. This subtle penumbral eclipse may have been visible to a skilled observer at maximum eclipse. 70.891% of the Moon's disc was partially shaded by the Earth (none of it was in total shadow), which caused a gentle shadow gradient across its disc at maximum; the eclipse as a whole lasted 3 hours, 34 minutes and 26 seconds.^[1]

• A total solar eclipse on Saturday, 16 February 1980.
• A penumbral lunar eclipse on Saturday, 1 March 1980.
• A penumbral lunar eclipse on Sunday, 27 July 1980.
• An annular solar eclipse on Sunday, 10 August 1980.
• A penumbral lunar eclipse on Tuesday, 26 August 1980.

Lunar eclipse series sets from 1977–1980
Ascending node					Descending node
Saros	Date viewing	Type chart	Gamma		Saros	Date viewing	Type chart	Gamma
112	1977 Apr 04	Partial	−0.91483		117	1977 Sep 27	Penumbral	1.07682
122	1978 Mar 24	Total	−0.21402		127	1978 Sep 16	Total	0.29510
132	1979 Mar 13	Partial	0.52537		137	1979 Sep 06	Total	−0.43050
142	1980 Mar 01	Penumbral	1.22701		147	1980 Aug 26	Penumbral	−1.16082
Last set	1976 May 13				Last set	1976 Nov 06
Next set	1981 Jan 20				Next set	1980 Jul 27

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 154.

August 20, 1971	August 31, 1989

• List of lunar eclipses
• List of 20th-century lunar eclipses

• 1980 Aug 26 chart Eclipse Predictions by Fred Espenak, NASA/GSFC