| 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 |
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.
Visibility
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.
Related eclipses
Eclipses in 2027
- An annular solar eclipse on 6 February.
- A penumbral lunar eclipse on 20 February.
- A penumbral lunar eclipse on 18 July.
- A total solar eclipse on 2 August.
- A penumbral lunar eclipse on 17 August.
Lunar year series
| 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 | |||||
Saros series
It is part of Saros cycle 148.
Metonic cycle (19 years)
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 | |
 |  | |||||
Half-Saros cycle
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.
| 11 August 2018 | 21 August 2036 |
|---|---|
 |  |
See also
References
External links
- Saros cycle 148
- 2027 Aug 17 chart: Eclipse Predictions by Fred Espenak, NASA/GSFC