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| 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.
Visibility[edit]
Related eclipses[edit]
Saros cycle[edit]
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 | |
| 1911 May 13 | 1929 May 23 | 1947 Jun 03 | |||
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| 1965 Jun 14 | 1983 Jun 25 | 2001 Jul 05 | |||
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| 2019 Jul 16 | 2037 Jul 27 | 2055 Aug 07 | |||
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| 2073 Aug 17 | 2091 Aug 29 | ||||
Lunar year series[edit]
| Ascending node | Descending node | |||||
|---|---|---|---|---|---|---|
| Saros | Date Viewing |
Type Chart |
Saros | Date Viewing |
Type Chart | |
| 114 | 2053 Mar 04
|
Penumbral
|
119 | 2053 Aug 29 |
Penumbral
| |
| 124 | 2054 Feb 22
|
Total
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129 | 2054 Aug 18
|
Total
| |
| 134 | 2055 Feb 11
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Total
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139 | 2055 Aug 07
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Partial
| |
| 144 | 2056 Feb 01
|
Penumbral
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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[edit]
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 |
|---|---|
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References[edit]
- ^ "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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