July 1980 lunar eclipse

July 1980 lunar eclipse
Penumbral eclipse
Date27 July 1980
Gamma1.41391
Magnitude0.25354
Saros cycle109 (71 of 73)
Penumbral137 minutes, 36.3 seconds
Contacts (UTC)
P117:59:26.4
Greatest19:08:07.2
P420:17:02.7

A penumbral lunar eclipse took place on Sunday, July 27, 1980, the second of three penumbral lunar eclipses in 1980. This very subtle penumbral eclipse was essentially invisible to the naked eye; though it lasted 2 hours, 17 minutes and 36.3 seconds, just 25.354% of the Moon's disc was in partial shadow (with no part of it in complete shadow). The moon passed in the northern edge of the Earth's penumbral shadow, and was the 70th lunar eclipse of Saros cycle 109.[1]

Visibility

Eclipses in 1980

Lunar year series

Lunar eclipse series sets from 1980–1984
Descending node   Ascending node
Saros Date
Viewing 		Type
Chart 		Gamma Saros Date
Viewing 		Type
Chart 		Gamma
109 1980 Jul 27
 Penumbral
 1.41391 114 1981 Jan 20
 Penumbral
 −1.01421
119 1981 Jul 17
 Partial
 0.70454 124 1982 Jan 09
 Total
 −0.29158
129 1982 Jul 06
 Total
 −0.05792 134 1982 Dec 30
 Total
 0.37579
139 1983 Jun 25
 Partial
 −0.81520 144 1983 Dec 20
 Penumbral
 1.07468
149 1984 Jun 13
 Penumbral
 −1.52403
Last set 1980 Aug 26 Last set 1980 Mar 13
Next set 1984 May 15 Next set 1984 Nov 08


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 one partial solar eclipse of Solar Saros 116.

July 22, 1971

Saros series

This lunar eclipse is the third to last member of Saros series 109. The next event is on August 8, 1998. The previous event was on July 17, 1962.

See also

Notes

  1. ^ "Saros Series of Lunar Eclipses". moonblink.info. Retrieved 2024-04-09.
  2. ^ Mathematical Astronomy Morsels, Jean Meeus, p.110, Chapter 18, The half-saros


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