August 2055 lunar eclipse

August 2055 lunar eclipse
Partial eclipse
	The moon passes west to east (right to left) across the Earth's umbral shadow, shown in hourly intervals.
Date	August 7, 2055
Gamma	−0.4769
Magnitude	0.9594
Saros cycle	139 (22 of 79)

A partial lunar eclipse will take place on August 7, 2055. It will last 3 hours, 23 minutes, and 23 seconds.[1] It will be the last of the first set of partial eclipses in Lunar Saros 139.

This eclipse is the fourth and final eclipse of an almost tetrad, the others being 22 Feb 2054 (T), 18 Aug 2054 (T), 11 Feb 2055 (T) and 7 August 2055 (P).

Visibility

Related eclipses

Saros cycle

Lunar Saros series 139, repeating every 18 years and 11 days, has a total of 79 lunar eclipse events including 42 umbral lunar eclipses (15 partial lunar eclipses and 27 total lunar eclipses)..

Greatest	First
The greatest eclipse of the series will occur on 2199 Nov 02, lasting 102 minutes.[2]	Penumbral	Partial	Total	Central
	1658 Dec 09	1947 Jun 03	2073 Aug 17	2109 Sep 09
	Last
	Central	Total	Partial	Penumbral
	2488 Apr 26	2542 May 30	2686 Aug 25	3065 Apr 13

1901–2100
1911 May 13	1929 May 23	1947 Jun 03

1965 Jun 14	1983 Jun 25	2001 Jul 05

2019 Jul 16	2037 Jul 27	2055 Aug 07

2073 Aug 17	2091 Aug 29

Lunar year series

Lunar eclipse series sets from 2053–2056
Saros	Date Viewing	Type Chart	Saros	Date Viewing	Type Chart
Ascending node			Descending node
114	2053 Mar 04	Penumbral	119	2053 Aug 29	Penumbral
124	2054 Feb 22	Total	129	2054 Aug 18	Total
134	2055 Feb 11	Total	139	2055 Aug 07	Partial
144	2056 Feb 01	Penumbral	149	2056 Jul 26	Partial

Last set	2052 Apr 14		Last set	2052 Oct 08

Next set	2056 Dec 22		Next set	2056 Jun 27

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 total solar eclipses of Solar Saros 139.

August 2, 2046	August 12, 2064

References

"Catalog of Lunar Eclipses: 2001 to 2100". NASA Goddard Space Flight Center. Archived from the original on 2009-03-22. Retrieved 20 May 2021.
Listing of Eclipses of cycle 139
Mathematical Astronomy Morsels, Jean Meeus, p.110, Chapter 18, The half-saros

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[nasa-1] "Catalog of Lunar Eclipses: 2001 to 2100". NASA Goddard Space Flight Center. Archived from the original on 2009-03-22. Retrieved 20 May 2021.

[2] Listing of Eclipses of cycle 139

[3] Mathematical Astronomy Morsels, Jean Meeus, p.110, Chapter 18, The half-saros