July 1981 lunar eclipse

Partial lunar eclipse July 17, 1981

Partial eclipseDate17 July 1981Gamma0.70454Magnitude0.54860Saros cycle119 (60 of 83)Partiality163 minutes, 15 secondsPenumbral319 minutes, 43 seconds

Contacts (UTC)
P1	02:06:56
U1	03:25:14
Greatest	04:46:48
U4	06:08:29
P4	07:26:39

← January 1981

January 1982 →

A partial lunar eclipse took place on Friday, July 17, 1981, the second of two lunar eclipses in 1981. The Earth's shadow on the Moon was clearly visible in this eclipse, with 55% of the Moon in shadow; the partial eclipse lasted for 2 hours and 43 minutes.^[1]

Visibility

The partial phase of this lunar eclipse was visible in southeastern North America, South America, western Africa, seen rising over northern North America, and setting over Western Europe and Eastern Africa.

Related lunar eclipses

Eclipses in 1981

A penumbral lunar eclipse on Tuesday, 20 January 1981.
An annular solar eclipse on Wednesday, 4 February 1981.
A partial lunar eclipse on Friday, 17 July 1981.
A total solar eclipse on Friday, 31 July 1981.

Lunar year series

Lunar eclipse series sets from 1980–1984
Descending node				Ascending node
Saros	Date Viewing	Type Chart	Gamma	Saros	Date Viewing	Type Chart	Gamma
109	1980 Jul 27	Penumbral	1.41391	114	1981 Jan 20	Penumbral	−1.01421
119	1981 Jul 17	Partial	0.70454	124	1982 Jan 09	Total	−0.29158
129	1982 Jul 06	Total	−0.05792	134	1982 Dec 30	Total	0.37579
139	1983 Jun 25	Partial	−0.81520	144	1983 Dec 20	Penumbral	1.07468
149	1984 Jun 13	Penumbral	−1.52403

Last set	1980 Aug 26			Last set	1980 Mar 13

Next set	1984 May 15			Next set	1984 Nov 08

Saros series

It was part of Saros series 119.

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 total solar eclipses of Solar Saros 126.

July 10, 1972	July 22, 1990

Tritos series

Preceded: Lunar eclipse of August 17, 1970
Followed: Lunar eclipse of June 15, 1992

Tzolkinex

Preceded: Lunar eclipse of June 4, 1974
Followed: Lunar eclipse of August 27, 1988

Notes

^ Hermit Eclipse: Saros cycle 119
^ Mathematical Astronomy Morsels, Jean Meeus, p.110, Chapter 18, The half-saros

External links

1981 Jul 17 chart Eclipse Predictions by Fred Espenak, NASA/GSFC

Lunar eclipses

Lists of lunar eclipses

Lunar eclipses
by era

Modern era
- 20th
- 21st
Future
- 22nd

Lunar eclipses
by saros series

Partial eclipses

Total eclipses

Penumbral eclipses

Partial	23 Mar 1940 22 Apr 1940 16 Oct 1940 1951 Feb 21 1951 Mar 23 1951 Aug 17 1951 Sep 15 1955 Jan 08 1955 Jun 05 1958 Apr 04 1958 Oct 27 1959 Sep 17 1962 Feb 19 1962 Jul 17 1962 Aug 15 1965 Dec 08 1966 May 04 1966 Oct 29 1969 Apr 02 1969 Aug 27 1969 Sep 25 1973 Jan 18 1973 Jun 15 1973 Jul 15 1976 Nov 06 1977 Sep 27 1980 Mar 01 1980 Jul 27 1980 Aug 26 1983 Dec 20 1984 May 15 1984 Jun 13 1984 Nov 08 1987 Apr 14 1987 Oct 07 1991 Jan 30 1991 Jun 27 1991 Jul 26 1994 Nov 18 1995 Oct 08 1998 Mar 13 1998 Aug 08 1998 Sep 06 2001 Dec 30 2002 May 26 2002 Jun 24 2002 Nov 20 2005 Apr 24 2009 Feb 09 2009 Jul 07 2009 Aug 06 2012 Nov 28 2013 May 25 2013 Oct 18 2016 Mar 23 2016 Aug 18 2016 Sep 16 2017 Feb 11 2020 Jan 10 2020 Jun 05 2020 Jul 05 2020 Nov 30 2023 May 05 2024 Mar 25 → 2027 Feb 20 2027 Jul 18 2027 Aug 17 2030 Dec 09 2031 May 07 2031 Jun 05 2031 Oct 30 2034 Apr 03 2035 Feb 22 2038 Jan 21 2038 Jun 17 2038 Jul 16 2038 Dec 11 2042 Apr 05 2042 Oct 28 2045 Mar 03 2045 Aug 27 2048 Dec 20 2049 May 17 2049 Jun 15 2049 Nov 09 2052 Apr 14 2053 Mar 04 2060 Nov 08 2107 May 7
Total	1963 Jan 09 1981 Jan 20 1988 Mar 03 1999 Jan 31 2006 Mar 14 → 2053 Aug 29 2070 Apr 25

Partial