June 2123 lunar eclipse

June 2123 lunar eclipse
Total eclipse
Date	9 June 2123
Gamma	0.0406
Magnitude	1.7487
Saros cycle	132 (36)
Totality	106 min 6 secs
Partiality	236 min
P1
Contacts (UTC)
P1	01:54:59
U1	03:04:17
U2	04:09:07
Greatest	05:02:10
U3	05:55:12
U4	07:00:02
P4	08:09:18
	← December 2122 December 2123 →

A total lunar eclipse will occur on Wednesday, June 9, 2123, with maximum eclipse at 05:06 UTC. A dramatic total eclipse lasting 106 minutes and 6 seconds will plunge the full Moon into deep darkness, as it passes right through the centre of the Earth's umbral shadow. While the visual effect of a total eclipse is variable, the Moon may be stained a deep orange or red colour at maximum eclipse. This will be a great spectacle for everyone who sees it. The partial eclipse will last for 3 hours and 56 minutes in total. The penumbral eclipse lasts for 6 hours and 14 minutes. Maximum eclipse is at 05:06:28 UT. This will be the longest Total Lunar Eclipse since 16 July 2000 (106 minutes, 25 seconds), and the longest one until 12 May 2264 (106 minutes, 13 seconds) and 27 July 3107 (106 minutes, 21 seconds), though the eclipse on June 19, 2141 will be nearly identical in all aspects.^[3] This will also be the longest of the 22nd century and the second longest of the 3rd millennium.^[4] The eclipse on June 19, 2141 will be the second longest of the 22nd century and the third longest of the third millennium (at 106 minutes 5 seconds).

Related lunar eclipses

Lunar eclipses are related by many different eclipse cycles. The Saros cycle (18 years and 10 days) repeats the most consistently due three coinciding periods, and continue over 70 events (1200+ years). Eclipses are identified by a Saros number and a member index within each series. The lunar year (354 days) and Metonic cycles (19 years) are short period last only 8 to 10 events. The Metonic cycle is equal to one Saros cycle plus one lunar year, and so the two series progress in parallel. The Inex cycle (29 years minus 20 days) can last tens of thousands of years, so long that long perturbations in the moon's path must be taken into account for prediction. Also the eclipse qualities are less inconsistent because the moon is at different significantly positions in its elliptical orbit in sequential events. Similarly for the shorter Tritos cycle (10 years and 31 days), repeats less consistently for the same reason.^{[citation needed]}

Saros series

Lunar saros series 132, repeating every 18 years and 11 days, has a total of 71 lunar eclipse events including 44 umbral lunar eclipses (32 partial lunar eclipses and 12 total lunar eclipses).

Greatest	First
The greatest eclipse of the series will occur on 2123 Jun 9, lasting 106 minutes.^[5]	Penumbral	Partial	Total	Central
	1492 May 12	1636 Aug 16	2015 Apr 4	2069 May 6
	Last
	Central	Total	Partial	Penumbral
	2177 Jul 11	2213 Aug 2	2429 Dec 11	2754 Jun 26

There are 11 series events between 1901 and 2100, grouped into threes (called an exeligmos), each column with approximately the same viewing longitude on earth.

Half-Saros cycle

A lunar eclipse will be preceded and followed by solar eclipses by 9 years and 5.5 days (a half saros).^[6] This lunar eclipse is related to two total solar eclipses of Solar Saros 139.