Jump to content

January 1934 lunar eclipse

Edit links
From Wikipedia, the free encyclopedia
January 1934 lunar eclipse
Partial eclipse
The Moon's hourly motion shown right to left
DateJanuary 30, 1934
Gamma0.9258
Magnitude0.1120
Saros cycle113 (59 of 71)
Partiality80 minutes, 55 seconds
Penumbral304 minutes, 16 seconds
Contacts (UTC)
P114:10:10
U116:01:54
Greatest16:42:18
U417:22:49
P419:14:26

A partial lunar eclipse occurred at the Moon’s descending node of orbit on Tuesday, January 30, 1934,[1] with an umbral magnitude of 0.1120. A lunar eclipse occurs when the Moon moves into the Earth's shadow, causing the Moon to be darkened. A partial lunar eclipse occurs when one part of the Moon is in the Earth's umbra, while the other part is in the Earth's penumbra. 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. Occurring about 2.9 days after apogee (on January 27, 1934, at 18:55 UTC), the Moon's apparent diameter was smaller.[2]

Visibility

[edit]

The eclipse was completely visible over Asia and Australia, seen rising over Africa and Europe and setting over western North America and the central Pacific Ocean.[3]

Eclipse details

[edit]

Shown below is a table displaying details about this particular solar eclipse. It describes various parameters pertaining to this eclipse.[4]

January 30, 1934 Lunar Eclipse Parameters
Parameter Value
Penumbral Magnitude 1.20734
Umbral Magnitude 0.11204
Gamma 0.92581
Sun Right Ascension 20h50m17.7s
Sun Declination -17°42'54.6"
Sun Semi-Diameter 16'14.0"
Sun Equatorial Horizontal Parallax 08.9"
Moon Right Ascension 08h51m34.9s
Moon Declination +18°29'48.4"
Moon Semi-Diameter 14'49.3"
Moon Equatorial Horizontal Parallax 0°54'23.7"
ΔT 23.8 s

Eclipse season

[edit]
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 January–February 1934
January 30
Descending node (full moon)		 February 14
Ascending node (new moon)
Partial lunar eclipse
Lunar Saros 113		 Total solar eclipse
Solar Saros 139
[edit]

Eclipses in 1934

[edit]

Metonic

[edit]

Tzolkinex

[edit]

Half-Saros

[edit]

Tritos

[edit]

Lunar Saros 113

[edit]

Inex

[edit]

Triad

[edit]

Lunar eclipses of 1933–1936

[edit]

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.[5]

The penumbral lunar eclipses on March 12, 1933 and September 4, 1933 occur in the previous lunar year eclipse set.

Lunar eclipse series sets from 1933 to 1936
Descending node   Ascending node
Saros Date
Viewing 		Type
Chart 		Gamma Saros Date
Viewing 		Type
Chart 		Gamma
103 1933 Feb 10
 Penumbral
 1.5600 108 1933 Aug 05
 Penumbral
 −1.4216
113 1934 Jan 30
 Partial
 0.9258 118 1934 Jul 26
 Partial
 −0.6681
123 1935 Jan 19
 Total
 0.2498 128 1935 Jul 16
 Total
 0.0672
133 1936 Jan 08
 Total
 −0.4429 138 1936 Jul 04
 Partial
 0.8642
143 1936 Dec 28
 Penumbral
 −1.0971

Saros 113

[edit]

This eclipse is a part of Saros series 113, repeating every 18 years, 11 days, and containing 71 events. The series started with a penumbral lunar eclipse on April 29, 888 AD. It contains partial eclipses from July 14, 1014 through March 10, 1411; total eclipses from March 20, 1429 through August 7, 1645; and a second set of partial eclipses from August 18, 1663 through February 21, 1970. The series ends at member 71 as a penumbral eclipse on June 10, 2150.

The longest duration of totality was produced by member 38 at 103 minutes, 6 seconds on June 5, 1555. All eclipses in this series occur at the Moon’s descending node of orbit.[6]

Greatest First
The greatest eclipse of the series occurred on 1555 Jun 05, lasting 103 minutes, 6 seconds.[7] Penumbral Partial Total Central
888 Apr 29
 1014 Jul 14
 1429 Mar 20
 1483 Apr 22
Last
Central Total Partial Penumbral
1609 Jul 16
 1645 Aug 07
 1970 Feb 21
 2150 Jun 10

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

[edit]

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
1803 Feb 06
(Saros 101) 		1814 Jan 06
(Saros 102) 		1824 Dec 06
(Saros 103) 		1846 Oct 04
(Saros 105)
1857 Sep 04
(Saros 106) 		1868 Aug 03
(Saros 107) 		1879 Jul 03
(Saros 108) 		1890 Jun 03
(Saros 109) 		1901 May 03
(Saros 110)
1912 Apr 01
(Saros 111) 		1923 Mar 03
(Saros 112) 		1934 Jan 30
(Saros 113) 		1944 Dec 29
(Saros 114) 		1955 Nov 29
(Saros 115)
1966 Oct 29
(Saros 116) 		1977 Sep 27
(Saros 117) 		1988 Aug 27
(Saros 118) 		1999 Jul 28
(Saros 119) 		2010 Jun 26
(Saros 120)
2021 May 26
(Saros 121) 		2032 Apr 25
(Saros 122) 		2043 Mar 25
(Saros 123) 		2054 Feb 22
(Saros 124) 		2065 Jan 22
(Saros 125)
2075 Dec 22
(Saros 126) 		2086 Nov 20
(Saros 127) 		2097 Oct 21
(Saros 128) 		2108 Sep 20
(Saros 129) 		2119 Aug 20
(Saros 130)
2130 Jul 21
(Saros 131) 		2141 Jun 19
(Saros 132) 		2152 May 18
(Saros 133) 		2163 Apr 19
(Saros 134) 		2174 Mar 18
(Saros 135)
2185 Feb 14
(Saros 136) 		2196 Jan 15
(Saros 137)

Half-Saros cycle

[edit]

A lunar eclipse will be preceded and followed by solar eclipses by 9 years and 5.5 days (a half saros).[8] This lunar eclipse is related to two total solar eclipses of Solar Saros 120.

January 24, 1925 February 4, 1943

See also

[edit]

Notes

[edit]
  1. ^ "January 30–31, 1934 Partial Lunar Eclipse". timeanddate. Retrieved 17 December 2024.
  2. ^ "Moon Distances for London, United Kingdom, England". timeanddate. Retrieved 17 December 2024.
  3. ^ "Partial Lunar Eclipse of 1934 Jan 30" (PDF). NASA. Retrieved 17 December 2024.
  4. ^ "Partial Lunar Eclipse of 1934 Jan 30". EclipseWise.com. Retrieved 17 December 2024.
  5. ^ 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.
  6. ^ "NASA - Catalog of Lunar Eclipses of Saros 113". eclipse.gsfc.nasa.gov.
  7. ^ Listing of Eclipses of series 113
  8. ^ Mathematical Astronomy Morsels, Jean Meeus, p.110, Chapter 18, The half-saros
[edit]
Stub icon

This lunar eclipse-related article is a stub. You can help Wikipedia by expanding it.

Retrieved from "http://en.wiki.x.io/w/index.php?title=January_1934_lunar_eclipse&oldid=1272313749"