April 1977 lunar eclipse
Partial Lunar Eclipse April 4, 1977 | |
---|---|
(No photo) | |
The moon passes west to east (right to left) across the Earth's umbral shadow, shown in hourly intervals. | |
Series | 112 (63 of 72) |
Duration (hr:mn:sc) | |
Partial | 1:34:45.6 |
Penumbral | 4:22:57.7 |
Contacts | |
P1 | 02:06:47.8 UTC |
U1 | 03:30:56.7 |
Greatest | 04:18:15.7 |
U4 | 05:05:42.3 |
P4 | 06:29:45.5 |
A partial lunar eclipse took place on April 4, 1977. At maximum eclipse, a small bite out of the Moon should have been visible. The eclipse lasted for 1 hour and 34.76 minutes, with just 19.289% of the Moon in shadow at maximum.[1]
Visibilility[]
Related lunar eclipses[]
Eclipses in 1977[]
- A partial lunar eclipse on Monday, 4 April 1977.
- An annular solar eclipse on Monday, 18 April 1977.
- A penumbral lunar eclipse on Tuesday, 27 September 1977.
- A total solar eclipse on Wednesday, 12 October 1977.
Lunar year series[]
Lunar eclipse series sets from 1977–1980 | ||||||||
---|---|---|---|---|---|---|---|---|
Ascending node | Descending node | |||||||
Saros | Date Viewing |
Type Chart |
Gamma | Saros | Date Viewing |
Type Chart |
Gamma | |
112 | 1977 Apr 04 |
Partial |
-0.91483 | 117 | 1977 Sep 27 |
Penumbral |
1.07682 | |
122 | 1978 Mar 24 |
Total |
-0.21402 | 127 | 1978 Sep 16 |
Total |
0.29510 | |
132 | 1979 Mar 13 |
Partial |
0.52537 | 137 | 1979 Sep 06 |
Total |
-0.43050 | |
142 | 1980 Mar 01 |
Penumbral |
1.22701 | 147 | 1980 Aug 26 |
Penumbral |
-1.16082 | |
Last set | 1976 May 13 | Last set | 1976 Nov 06 | |||||
Next set | 1981 Jan 20 | Next set | 1980 Jul 27 |
Saros series[]
Lunar Saros series 112, repeating every 18 years and 11 days, has a total of 72 lunar eclipse events including 15 total lunar eclipses.
Greatest | First | |||
---|---|---|---|---|
The greatest eclipse of the series occurred on 1490 Jun 02, lasting 100 minutes.[2] | Penumbral | Partial | Total | Central |
859 May 20 | 985 Aug 03 | 1364 Mar 18 | 1436 Apr 30 | |
Last | ||||
Central | Total | Partial | Penumbral | |
1562 Jul 16 | 1616 Aug 27 | 2013 Apr 25 |
2139 Jul 12 |
There are 11 series events between 1901 and 2100, grouped into threes (called an exeligmos), each column with approximately the same viewing longitude on earth.
1941 Mar 13 | |||||
1959 Mar 24 | 1979 Apr 04 | 1995 Apr 15 | |||
2013 Apr 25 | 2031 May 07 | 2049 May 17 | |||
Half-Saros cycle[]
A lunar eclipse will be preceded and followed by solar eclipses by 9 years and 5.5 days (a half saros).[3] This lunar eclipse is related to two partial solar eclipses of Solar Saros 119.
March 28, 1968 | April 9, 1986 |
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See also[]
- List of lunar eclipses
- List of 20th-century lunar eclipses
Notes[]
- ^ Hermit Eclipse: Saros cycle 112
- ^ Listing of Eclipses of series 112
- ^ Mathematical Astronomy Morsels, Jean Meeus, p.110, Chapter 18, The half-saros
External links[]
- 1977 Apr 04 chart Eclipse Predictions by Fred Espenak, NASA/GSFC
Categories:
- 20th-century lunar eclipses
- 1977 in science
- April 1977 events
- Lunar eclipse stubs