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Solar eclipse of June 20, 1974

Total eclipse

Summary

Total eclipse

FieldValue
previousSolar eclipse of December 24, 1973
nextSolar eclipse of December 13, 1974

A total solar eclipse occurred at the Moon's descending node of orbit on Thursday, June 20, 1974, with a magnitude of 1.0592. A solar eclipse occurs when the Moon passes between Earth and the Sun, thereby totally or partly obscuring the view of the Sun for a viewer on Earth. A total solar eclipse occurs when the Moon's apparent diameter is larger than the Sun's, blocking all direct sunlight, turning day into darkness. Totality occurs in a narrow path across Earth's surface, with the partial solar eclipse visible over a surrounding region thousands of kilometres wide. Occurring about 1.4 days before perigee (on June 21, 1974, at 14:50 UTC), the Moon's apparent diameter was larger.

The path of totality passed over the Indian Ocean, Amsterdam Island, and Western Australia. A partial eclipse was visible for parts of the Malagasy Republic (today's Madagascar), Indonesia, Australia, and the southwestern coast of South Island, New Zealand.

Eclipse details

Shown below are two tables displaying details about this particular solar eclipse. The first table outlines times at which the Moon's penumbra or umbra attains the specific parameter, and the second table describes various other parameters pertaining to this eclipse.

EventTime (UTC)
First Penumbral External Contact1974 June 20 at 02:33:32.2 UTC
First Umbral External Contact1974 June 20 at 03:47:06.1 UTC
First Central Line1974 June 20 at 03:49:24.2 UTC
First Umbral Internal Contact1974 June 20 at 03:51:46.3 UTC
Greatest Duration1974 June 20 at 04:47:57.2 UTC
Greatest Eclipse1974 June 20 at 04:48:04.4 UTC
Equatorial Conjunction1974 June 20 at 04:55:25.3 UTC
Ecliptic Conjunction1974 June 20 at 04:56:24.3 UTC
Last Umbral Internal Contact1974 June 20 at 05:44:15.8 UTC
Last Central Line1974 June 20 at 05:46:39.4 UTC
Last Umbral External Contact1974 June 20 at 05:48:59.2 UTC
Last Penumbral External Contact1974 June 20 at 07:02:30.3 UTC
ParameterValue
Eclipse Magnitude1.05919
Eclipse Obscuration1.12189
Gamma−0.82388
Sun Right Ascension05h53m26.3s
Sun Declination+23°26'00.3"
Sun Semi-Diameter15'44.3"
Sun Equatorial Horizontal Parallax08.7"
Moon Right Ascension05h53m07.9s
Moon Declination+22°36'22.0"
Moon Semi-Diameter16'30.9"
Moon Equatorial Horizontal Parallax1°00'36.8"
ΔT44.9 s

Eclipse season

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.

June 4
Ascending node (full moon)
June 20
Descending node (new moon)
[[File:Lunar eclipse chart close-1974Jun04.png200px]][[File:SE1974Jun20T.png200px]]
Partial lunar eclipse
Lunar Saros 120Total solar eclipse
Solar Saros 146

References

References

  1. "June 20, 1974 Total Solar Eclipse". timeanddate.
  2. "Moon Distances for London, United Kingdom, England". timeanddate.
  3. Duncombe, Julena S.. (June 15, 1973). "Total Solar Eclipse of 20 June 1974". United States Naval Observatory Circular.
  4. "Total Solar Eclipse of 1974 Jun 20". EclipseWise.com.
Wikipedia Source

This article was imported from Wikipedia and is available under the Creative Commons Attribution-ShareAlike 4.0 License. Content has been adapted to SurfDoc format. Original contributors can be found on the article history page.

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