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June 1946 lunar eclipse

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June 1946 lunar eclipse
Total eclipse
The Moon's hourly motion shown right to left
DateJune 14, 1946
Gamma−0.2324
Magnitude1.3983
Saros cycle129 (34 of 71)
Totality91 minutes, 9 seconds
Partiality229 minutes, 3 seconds
Penumbral369 minutes, 12 seconds
Contacts (UTC)
P115:34:13
U116:44:19
U217:54:16
Greatest18:38:49
U319:24:24
U420:33:21
P421:43:24

A total lunar eclipse occurred at the Moon’s descending node of orbit on Friday, June 14, 1946,[1] with an umbral magnitude of 1.3983. 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 about 1.8 days after apogee (on June 12, 1946, at 22:40 UTC), the Moon's apparent diameter was smaller.[2]

This lunar eclipse was the third of an almost tetrad, with the others being on June 25, 1945 (partial); December 19, 1945 (total); and December 8, 1946 (total).

The northern tip of the Moon passed through the center of the Earth's shadow. This was the first central lunar eclipse of Lunar Saros 129.

Visibility

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The eclipse was completely visible over east Africa, central, south, and southeast Asia, western Australia, and Antarctica, seen rising over much of Africa, eastern South America, Europe, and west Asia and setting over northeast Asia and eastern Australia.[3]

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.[4]

June 14, 1946 Lunar Eclipse Parameters
Parameter Value
Penumbral Magnitude 2.46538
Umbral Magnitude 1.39833
Gamma −0.23239
Sun Right Ascension 05h29m50.7s
Sun Declination +23°15'55.5"
Sun Semi-Diameter 15'44.7"
Sun Equatorial Horizontal Parallax 08.7"
Moon Right Ascension 17h29m42.4s
Moon Declination -23°28'21.8"
Moon Semi-Diameter 14'45.4"
Moon Equatorial Horizontal Parallax 0°54'09.4"
ΔT 27.6 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. The first and last eclipse in this sequence is separated by one synodic month.

Eclipse season of May–June 1946
May 30
Ascending node (new moon)		 June 14
Descending node (full moon)		 June 29
Ascending node (new moon)
Partial solar eclipse
Solar Saros 117		 Total lunar eclipse
Lunar Saros 129		 Partial solar eclipse
Solar Saros 155
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Eclipses in 1946

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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 129

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Inex

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Triad

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Lunar eclipses of 1944–1947

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Lunar eclipse series sets from 1944–1947
Descending node   Ascending node
Saros Date
viewing 		Type
chart 		Saros Date
viewing 		Type
chart
109 1944 Jul 06
 Penumbral
 114 1944 Dec 29
 Penumbral
119 1945 Jun 25
 Partial
 124 1945 Dec 19
 Total
129 1946 Jun 14
 Total
 134 1946 Dec 08
 Total
139 1947 Jun 03
 Partial
 144 1947 Nov 28
 Penumbral

Saros 129

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Lunar saros series 129, repeating every 18 years and 11 days, containing 71 events, has 11 total lunar eclipses. The first total lunar eclipse of this series was on May 24, 1910, and last will be on September 8, 2090. The longest occurrence of this series was on July 16, 2000 when totality lasted 106 minutes and 24.6 seconds.

Greatest First

The greatest eclipse of the series occurred on 2000 Jul 16, lasting 106 minutes. 		Penumbral Partial Total Central
1351 Jun 10 1513 Sep 15 1910 May 24 1946 Jun 14
Last
Central Total Partial Penumbral
2036 Aug 7 2090 Sep 8 2469 Apr 26 2613 Jul 24
1901–2100
1910 May 24 1928 Jun 3 1946 Jun 14
1964 Jun 25 1982 Jul 6 2000 Jul 16
2018 Jul 27 2036 Aug 7 2054 Aug 18
2072 Aug 28 2090 Sep 8

It last occurred on June 3, 1928 and will next occur on June 25, 1964.

This is the 34th member of Lunar Saros 129. The previous event was the June 1928 lunar eclipse. The next event is the June 1964 lunar eclipse. Lunar Saros 129 contains 11 total lunar eclipses between 1910 and 2090. Solar Saros 136 interleaves with this lunar saros with an event occurring every 9 years 5 days alternating between each saros series.

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).[5] This lunar eclipse is related to two total solar eclipses of Solar Saros 136.

June 8, 1937 June 20, 1955

See also

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Notes

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  1. ^ "June 14–15, 1946 Total Lunar Eclipse (Blood Moon)". timeanddate. Retrieved 20 December 2024.
  2. ^ "Moon Distances for London, United Kingdom, England". timeanddate. Retrieved 20 December 2024.
  3. ^ "Total Lunar Eclipse of 1946 Jun 14" (PDF). NASA. Retrieved 20 December 2024.
  4. ^ "Total Lunar Eclipse of 1946 Jun 14". EclipseWise.com. Retrieved 20 December 2024.
  5. ^ Mathematical Astronomy Morsels, Jean Meeus, p.110, Chapter 18, The half-saros
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