December 1983 lunar eclipse

A penumbral lunar eclipse took place on Tuesday, December 20, 1983, the second of two lunar eclipses in 1983. At the maximum eclipse, 89% of the Moon's disk was partially shaded by the Earth, which caused a slight shadow gradient across its disc; this subtle effect may have been visible to careful observers. No part of the Moon was in complete shadow. The eclipse lasted 4 hours and 2 minutes overall.[1]

December 1983 lunar eclipse
Penumbral eclipse
Date20 December 1983
Gamma1.07468
Magnitude0.88903
Saros cycle144 (14 of 71)
Penumbral242 minutes, 20.6 seconds
Contacts (UTC)
P123:47:55.9 (19 Dec)
Greatest01:49:03.3
P403:50:16.5

Visibility

Eclipses in 1983

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 cycle

Lunar Saros series 144, repeating every 18 years and 11 days, has a total of 71 lunar eclipse events including 20 total lunar eclipses.

First Penumbral Lunar Eclipse: 1749 Jul 29

First Partial Lunar Eclipse: 2146 Mar 28

First Total Lunar Eclipse: 2308 Jul 04

First Central Lunar Eclipse: 2362 Aug 06

Greatest Eclipse of the Lunar Saros 144: 2416 Sep 07

Last Central Lunar Eclipse: 2488 Oct 20

Last Total Lunar Eclipse: 2651 Jan 28

Last Partial Lunar Eclipse: 2867 Jun 08

Last Penumbral Lunar Eclipse: 3011 Sep 04

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 151.

December 13, 1974 December 24, 1992

Tzolkinex

See also

Notes
  1. Hermit Eclipse: Saros cycle 144
  2. Mathematical Astronomy Morsels, Jean Meeus, p.110, Chapter 18, The half-saros


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