August 1980 lunar eclipse

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. Occurring only 1.7 days before perigee (Perigee on Wednesday, August 27, 1980), the Moon's apparent diameter was 4.6% larger than average. At greatest eclipse, the Moon was only 363,116.41 km (225,630,08 mi) from the Earth.[1]

August 1980 lunar eclipse
Penumbral eclipse
Date26 August 1980
Gamma-1.16082
Magnitude0.70891
Saros cycle147 (7 of 71)
Penumbral214 minutes, 26.0 seconds
Contacts (UTC)
P101:43:19.5
Greatest03:30:29.5
P405:17:45.5

Visibility

It was completely visible over eastern Pacific, the Americas, Atlantic, Europe and Africa, seen rising over the central Pacific and setting over Europe and Africa.

Eclipses in 1980

Lunar year series
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

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 154.

August 20, 1971 August 31, 1989

See also

Notes
  1. Hermit Eclipse: Saros cycle 147
  2. Mathematical Astronomy Morsels, Jean Meeus, p.110, Chapter 18, The half-saros


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