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)
Gamma1.2797
Magnitude0.5456
Duration (hr:mn:sc)
Penumbral3:38:35
Contacts
P15:24:29 UTC
Greatest7:13:43
P49:03:03

A penumbral lunar eclipse will take place on Tuesday, August 17, 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.

Eclipses in 2027

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.

Metonic lunar eclipse sets 1951–2027
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

  1. ↑ Mathematical Astronomy Morsels, Jean Meeus, p.110, Chapter 18, The half-saros


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