July 1981 lunar eclipse

A partial lunar eclipse took place on Friday, July 17, 1981, the second of two lunar eclipses in 1981. The Earth's shadow on the Moon was clearly visible in this eclipse, with 55% of the Moon in shadow; the partial eclipse lasted for 2 hours and 43 minutes.[1]

July 1981 lunar eclipse
Partial eclipse
Date17 July 1981
Gamma0.70454
Magnitude0.54860
Saros cycle119 (60 of 83)
Partiality163 minutes, 15 seconds
Penumbral319 minutes, 43 seconds
Contacts (UTC)
P102:06:56
U103:25:14
Greatest04:46:48
U406:08:29
P407:26:39

Visibility

The partial phase of this lunar eclipse was visible in southeastern North America, South America, western Africa, seen rising over northern North America, and setting over Western Europe and Eastern Africa.

Eclipses in 1981

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

Saros series

It was part of Saros series 119.

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 total solar eclipses of Solar Saros 126.

July 10, 1972 July 22, 1990

Tritos series

Tzolkinex

See also

Notes
  1. Hermit Eclipse: Saros cycle 119
  2. Mathematical Astronomy Morsels, Jean Meeus, p.110, Chapter 18, The half-saros


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