May 2023 lunar eclipse
Penumbral eclipse
From Surabaya, Indonesia at 17:22 UTC
Date5 May 2023
Gamma−1.0349
Magnitude0.9636
Saros cycle141 (24 of 73)
Penumbral257 minutes, 31 seconds
Contacts (UTC)
P115:14:10
Greatest17:22:51
P419:31:41

A penumbral lunar eclipse occurred on Friday, 5 May 2023, the first of two lunar eclipses in 2023. The moon's apparent diameter was 0.1% larger than average because it occurred 5.5 days before perigee (Perigee on 11 May 2023). This was the deepest penumbral eclipse (with –0.0457 magnitude) since February 2017 and until September 2042.[1]

Visibility

It was completely visible over Asia and Australia, and was seen rising over Africa and much of Europe (basically in Eastern and Central Europe).


Visibility map

Member

This was the 24th member of Lunar Saros 141. The previous event was the April 2005 lunar eclipse. The next event is the May 2041 lunar eclipse.

Eclipses of 2023

Lunar year series

Lunar eclipse series sets from 2020–2023
Descending node   Ascending node
Saros Date Type
Viewing		 Gamma Saros Date
Viewing		 Type
Chart		 Gamma
111
 2020 Jun 05
 Penumbral
 1.24063 116
 2020 Nov 30
 Penumbral
 −1.13094
121
 2021 May 26
 Total
 0.47741 126
 2021 Nov 19
 Partial
 −0.45525
131
 2022 May 16
 Total
 −0.25324 136
 2022 Nov 08
 Total
 0.25703
141
 2023 May 05
 Penumbral
 −1.03495 146
 2023 Oct 28
 Partial
 0.94716
Last set 2020 Jul 05 Last set 2020 Jan 10
Next set 2024 Mar 25 Next set 2024 Sep 18

Saros series

Metonic series

This eclipse is the last of four Metonic cycle lunar eclipses on the same date, 4–5 May, each separated by 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 events: May 4 and October 28
Descending node Ascending node
  1. 1966 May 4 - Penumbral (111)
  2. 1985 May 4 - Total (121)
  3. 2004 May 4 - Total (131)
  4. 2023 May 5 - Penumbral (141)
  1. 1966 Oct 29 - Penumbral (116)
  2. 1985 Oct 28 - Total (126)
  3. 2004 Oct 28 - Total (136)
  4. 2023 Oct 28 - Partial (146)
  5. 2042 Oct 28 - Penumbral (156)

Tritos series

Tzolkinex

Half-Saros cycle

A lunar eclipse will be preceded and followed by solar eclipses by 9 years and 5.5 days (a half saros).[2] This lunar eclipse is related to two annular solar eclipses of Solar Saros 148.

29 April 2014 9 May 2032

See also

References

  1. ↑ "Penumbral Lunar Eclipse on May 5–6, 2023 – Where and when to See".
  2. ↑ Mathematical Astronomy Morsels, Jean Meeus, p.110, Chapter 18, The half-saros


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