April 1977 lunar eclipse

April 1977 lunar eclipse
Partial eclipse
Date	4 April 1977
Gamma	−0.91483
Magnitude	0.19289
Saros cycle	112 (63 of 72)
Partiality	94 minutes, 45.6 seconds
Penumbral	262 minutes, 57.7 seconds
P1
Contacts (UTC)
P1	02:06:47.8
U1	03:30:56.7
Greatest	04:18:15.7
U4	05:05:42.3
P4	06:29:45.5
	← November 1976 September 1977 →

A partial lunar eclipse took place on Monday, April 4, 1977, the first of two lunar eclipses in 1977. Lasting 1 hour and 34.76 minutes, 19.289% of the Moon was in shadow at maximum.^[1]

Visibilility

It was completely visible over North America, South America, Europe and Asia, seen rising over the Pacific and setting over the Middle East.

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.

1901–2100
1905 Feb 19	1923 Mar 3	1941 Mar 13

1959 Mar 24	1977 Apr 04	1995 Apr 15

2013 Apr 25	2031 May 07	2049 May 17

2067 May 28	2085 Jun 08

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.