April 1921 lunar eclipse
Total eclipse | |||||||||||||||||
Date | April 22, 1921 | ||||||||||||||||
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Gamma | 0.4269 | ||||||||||||||||
Magnitude | 1.0678 | ||||||||||||||||
Saros cycle | 130 (29 of 72) | ||||||||||||||||
Totality | 40 minutes and 7 seconds | ||||||||||||||||
Partiality | 202 minutes and 2 seconds | ||||||||||||||||
Penumbral | 331 minutes and 54 seconds | ||||||||||||||||
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A total lunar eclipse took place on April 22, 1921. This was the first total lunar eclipse of Saros cycle 130. A shallow total eclipse saw the Moon in relative darkness for 40 minutes and 6 seconds. The Moon was approximately 7% of its diameter into the Earth's umbral shadow, and should have been significantly darkened. The partial eclipse lasted for 3 hours and 22 minutes in total.
Visibility[]
Related lunar eclipses[]
Saros series[]
Lunar saros series 130, repeating every 18 years and 11 days, has a total of 71 lunar eclipse events including 56 umbral lunar eclipses (42 partial lunar eclipses and 14 total lunar eclipses). Solar Saros 137 interleaves with this lunar saros with an event occurring every 9 years 5 days alternating between each saros series.
Greatest | First | |||
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![]() The greatest eclipse of the series will occur on 2029 Jun 26, lasting 102 minutes.[1] |
Penumbral | Partial | Total | Central |
1416 Jun 10 | 1560 Sep 4 | 1921 Apr 22 | 1957 May 13 | |
Last | ||||
Central | Total | Partial | Penumbral | |
2083 Jul 29 | 2155 Sep 11 | 2552 May 10 | 2678 Jul 26 |
1903 Apr 12 | 1921 Apr 22 | 1939 May 3 | |||
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1957 May 13 | 1975 May 25 | 1993 Jun 4 | |||
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2011 Jun 15 | 2029 Jun 26 | 2047 Jul 7 | |||
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2065 Jul 17 | 2083 Jul 29 | ||||
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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 annular solar eclipses of Solar Saros 137.
April 17, 1912 | April 28, 1930 |
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17 April 1912[]
!April 17, 1912
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28 April 1930[]
!April 28, 1930
I
See also[]
- List of lunar eclipses
- List of 20th-century lunar eclipses
Notes[]
- ^ Listing of Eclipses of cycle 130
- ^ Mathematical Astronomy Morsels, Jean Meeus, p.110, Chapter 18, The half-saros
External links[]
- 1921 Apr 22 chart Eclipse Predictions by Fred Espenak, NASA/GSFC
- 20th-century lunar eclipses
- 1921 in science
- Lunar eclipse stubs