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December 1982 lunar eclipse

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December 1982 lunar eclipse
Total eclipse
The Moon's hourly motion shown right to left
DateDecember 30, 1982
Gamma0.3758
Magnitude1.1822
Saros cycle134 (25 of 73)
Totality60 minutes, 3 seconds
Partiality195 minutes, 53 seconds
Penumbral310 minutes, 34 seconds
Contacts (UTC)
P18:53:27
U19:50:48
U210:58:43
Greatest11:28:44
U311:58:46
U413:06:41
P414:04:01

A total lunar eclipse occurred at the Moon’s ascending node of orbit on Thursday, December 30, 1982,[1] with an umbral magnitude of 1.1822. A lunar eclipse occurs when the Moon moves into the Earth's shadow, causing the Moon to be darkened. A total lunar eclipse occurs when the Moon's near side entirely passes into the Earth's umbral shadow. Unlike a solar eclipse, which can only be viewed from a relatively small area of the world, a lunar eclipse may be viewed from anywhere on the night side of Earth. A total lunar eclipse can last up to nearly two hours, while a total solar eclipse lasts only a few minutes at any given place, because the Moon's shadow is smaller. Occurring only about 10.5 hours before perigee (on December 30, 1982, at 22:00 UTC), the Moon's apparent diameter was larger.[2]

This was a supermoon since perigee was on the same day. It was also a blue moon, the second full moon of December for the eastern hemisphere where the previous full moon was on December 1.[3] Since total lunar eclipses are also known as blood moons, this combination (which would not recur until January 31, 2018[3]) is known as a super blue blood moon.[3]

Visibility

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The eclipse was completely visible over north and northeast Asia, western and central North America, and the central Pacific Ocean, seen rising over northern Europe, much of Asia, and Australia and setting over eastern North America and western South America.[4]

Eclipse details

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Shown below is a table displaying details about this particular solar eclipse. It describes various parameters pertaining to this eclipse.[5]

December 30, 1982 Lunar Eclipse Parameters
Parameter Value
Penumbral Magnitude 2.15450
Umbral Magnitude 1.18219
Gamma 0.37579
Sun Right Ascension 18h36m44.9s
Sun Declination -23°10'20.5"
Sun Semi-Diameter 16'15.9"
Sun Equatorial Horizontal Parallax 08.9"
Moon Right Ascension 06h36m41.3s
Moon Declination +23°33'23.8"
Moon Semi-Diameter 16'43.7"
Moon Equatorial Horizontal Parallax 1°01'23.7"
ΔT 53.0 s

Eclipse season

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See also: Eclipse cycle

This eclipse is part of an eclipse season, a period, roughly every six months, when eclipses occur. Only two (or occasionally three) eclipse seasons occur each year, and each season lasts about 35 days and repeats just short of six months (173 days) later; thus two full eclipse seasons always occur each year. Either two or three eclipses happen each eclipse season. In the sequence below, each eclipse is separated by a fortnight.

Eclipse season of December 1982
December 15
Descending node (new moon)
 December 30
Ascending node (full moon)
Partial solar eclipse
Solar Saros 122		 Total lunar eclipse
Lunar Saros 134
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Eclipses in 1982

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Metonic

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Tzolkinex

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Half-Saros

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Tritos

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Lunar Saros 134

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Inex

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Triad

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Lunar eclipses of 1980–1984

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This eclipse is a member of a semester series. An eclipse in a semester series of lunar eclipses repeats approximately every 177 days and 4 hours (a semester) at alternating nodes of the Moon's orbit.[6]

The penumbral lunar eclipses on March 1, 1980 and August 26, 1980 occur in the previous lunar year eclipse set, and the penumbral lunar eclipses on May 15, 1984 and November 8, 1984 occur in the next lunar year eclipse set.

Lunar eclipse series sets from 1980 to 1984
Descending node   Ascending node
Saros Date
Viewing 		Type
Chart 		Gamma Saros Date
Viewing 		Type
Chart 		Gamma
109 1980 Jul 27
 Penumbral
 1.4139 114 1981 Jan 20
 Penumbral
 −1.0142
119 1981 Jul 17
 Partial
 0.7045 124 1982 Jan 09
 Total
 −0.2916
129 1982 Jul 06
 Total
 −0.0579 134 1982 Dec 30
 Total
 0.3758
139 1983 Jun 25
 Partial
 −0.8152 144 1983 Dec 20
 Penumbral
 1.0747
149 1984 Jun 13
 Penumbral
 −1.5240

Saros 134

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This eclipse is a part of Saros series 134, repeating every 18 years, 11 days, and containing 72 events. The series started with a penumbral lunar eclipse on April 1, 1550. It contains partial eclipses from July 7, 1694 through October 13, 1856; total eclipses from October 25, 1874 through July 26, 2325; and a second set of partial eclipses from August 7, 2343 through November 12, 2505. The series ends at member 72 as a penumbral eclipse on May 28, 2830.

The longest duration of totality will be produced by member 38 at 100 minutes, 23 seconds on May 22, 2217. All eclipses in this series occur at the Moon’s ascending node of orbit.[7]

Greatest First
The greatest eclipse of the series will occur on 2217 May 22, lasting 100 minutes, 23 seconds.[8] Penumbral Partial Total Central
1550 Apr 01
 1694 Jul 07
 1874 Oct 25
 2127 Mar 28
Last
Central Total Partial Penumbral
2289 Jul 04
 2325 Jul 26
 2505 Nov 12
 2830 May 28

Eclipses are tabulated in three columns; every third eclipse in the same column is one exeligmos apart, so they all cast shadows over approximately the same parts of the Earth.

Tritos series

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This eclipse is a part of a tritos cycle, repeating at alternating nodes every 135 synodic months (≈ 3986.63 days, or 11 years minus 1 month). Their appearance and longitude are irregular due to a lack of synchronization with the anomalistic month (period of perigee), but groupings of 3 tritos cycles (≈ 33 years minus 3 months) come close (≈ 434.044 anomalistic months), so eclipses are similar in these groupings.

Series members between 1801 and 2200
1808 May 10
(Saros 118) 		1819 Apr 10
(Saros 119) 		1830 Mar 09
(Saros 120) 		1841 Feb 06
(Saros 121) 		1852 Jan 07
(Saros 122)
1862 Dec 06
(Saros 123) 		1873 Nov 04
(Saros 124) 		1884 Oct 04
(Saros 125) 		1895 Sep 04
(Saros 126) 		1906 Aug 04
(Saros 127)
1917 Jul 04
(Saros 128) 		1928 Jun 03
(Saros 129) 		1939 May 03
(Saros 130) 		1950 Apr 02
(Saros 131) 		1961 Mar 02
(Saros 132)
1972 Jan 30
(Saros 133) 		1982 Dec 30
(Saros 134) 		1993 Nov 29
(Saros 135) 		2004 Oct 28
(Saros 136) 		2015 Sep 28
(Saros 137)
2026 Aug 28
(Saros 138) 		2037 Jul 27
(Saros 139) 		2048 Jun 26
(Saros 140) 		2059 May 27
(Saros 141) 		2070 Apr 25
(Saros 142)
2081 Mar 25
(Saros 143) 		2092 Feb 23
(Saros 144) 		2103 Jan 23
(Saros 145) 		2113 Dec 22
(Saros 146) 		2124 Nov 21
(Saros 147)
2135 Oct 22
(Saros 148) 		2146 Sep 20
(Saros 149) 		2157 Aug 20
(Saros 150) 		2168 Jul 20
(Saros 151) 		2179 Jun 19
(Saros 152)
2190 May 19
(Saros 153)

Half-Saros cycle

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A lunar eclipse will be preceded and followed by solar eclipses by 9 years and 5.5 days (a half saros).[9] This lunar eclipse is related to two annular solar eclipses of Solar Saros 141.

December 24, 1973 January 4, 1992

See also

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Notes

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  1. ^ "December 29–30, 1982 Total Lunar Eclipse (Blood Moon)". timeanddate. Retrieved 6 January 2025.
  2. ^ "Moon Distances for London, United Kingdom, England". timeanddate. Retrieved 6 January 2025.
  3. ^ a b c Fazekas, Andrew (29 January 2018). "Rare 'Super Blue Blood Moon' Coming—First in 35 Years". National Geographic. Archived from the original on 29 January 2018.
  4. ^ "Total Lunar Eclipse of 1982 Dec 30" (PDF). NASA. Retrieved 6 January 2025.
  5. ^ "Total Lunar Eclipse of 1982 Dec 30". EclipseWise.com. Retrieved 6 January 2025.
  6. ^ van Gent, R.H. "Solar- and Lunar-Eclipse Predictions from Antiquity to the Present". A Catalogue of Eclipse Cycles. Utrecht University. Retrieved 6 October 2018.
  7. ^ "NASA - Catalog of Lunar Eclipses of Saros 134". eclipse.gsfc.nasa.gov.
  8. ^ Listing of Eclipses of series 134
  9. ^ Mathematical Astronomy Morsels, Jean Meeus, p.110, Chapter 18, The half-saros
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