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Penumbral From Wikipedia, the free encyclopedia
A penumbral lunar eclipse will take place on Tuesday 17 August 2027. It will cause a subtle dimming as 54.56% of the Moon will cross within Earth's penumbral shadow.
| Penumbral Lunar Eclipse 17 August 2027 | |
|---|---|
The moon will perceptibly dim as it passes through the Earth's northern penumbral shadow | |
| Series (and member) | 148 (4 of 71) |
| Gamma | 1.2797 |
| Magnitude | 0.5456 |
| Duration (hr:mn:sc) | |
| Penumbral | 3:38:35 |
| Contacts | |
| P1 | 5:24:29 UTC |
| Greatest | 7:13:43 |
| P4 | 9:03:03 |
It will be completely visible over the Americas, will be seen rising over New Zealand and eastern Australia, and setting over Portugal and western Africa.
| Lunar eclipse series sets from 2024–2027 | ||||||||
|---|---|---|---|---|---|---|---|---|
| Descending node | Ascending node | |||||||
| Saros | Date | Type Viewing |
Gamma | Saros | Date Viewing |
Type Chart |
Gamma | |
113 |
2024 Mar 25 |
Penumbral |
1.06098 | 118 |
2024 Sep 18 |
Partial |
−0.97920 | |
| 123 | 2025 Mar 14 |
Total |
0.34846 | 128 | 2025 Sep 07 |
Total |
−0.27521 | |
| 133 | 2026 Mar 03 |
Total |
−0.37651 | 138 | 2026 Aug 28 |
Partial |
0.49644 | |
| 143 | 2027 Feb 20 |
Penumbral |
−1.04803 | 148 | 2027 Aug 17 |
Penumbral |
1.27974 | |
| Last set | 2023 May 05 | Last set | 2023 Oct 28 | |||||
| Next set | 2028 Jan 12 | Next set | 2027 Jul 18 | |||||
It is part of Saros cycle 148.
The Metonic cycle repeats nearly exactly every 19 years and represents a Saros cycle plus one lunar year. Because it occurs on the same calendar date, the Earth's shadow will in nearly the same location relative to the background stars.
| Descending node | Ascending node | |||||
|---|---|---|---|---|---|---|
| Saros | Date | Type | Saros | Date | Type | |
| 103 | 1951 Feb 21.88 | Penumbral | 108 | 1951 Aug 17.13 | Penumbral | |
 |
 | |||||
| 113 | 1970 Feb 21.35 | Partial | 118 | 1970 Aug 17.14 | Partial | |
 |
 | |||||
| 123 | 1989 Feb 20.64 | Total | 128 | 1989 Aug 17.13 | Total | |
 |
 | |||||
| 133 | 2008 Feb 21.14 | Total | 138 | 2008 Aug 16.88 | Partial | |
 |
 | |||||
| 143 | 2027 Feb 20.96 | Penumbral | 148 | 2027 Aug 17.30 | Penumbral | |
 |
 | |||||
A lunar eclipse will be preceded and followed by solar eclipses by 9 years and 5.5 days (a half saros).[1] This lunar eclipse is related to two partial solar eclipses of Solar Saros 155.
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