January 2019 lunar eclipse

January 2019 lunar eclipse
Total eclipse
Date	21 January 2019
Gamma	0.3684
Magnitude	1.1953
Saros cycle	134 (27 of 73)
Totality	61 minutes, 59 seconds
Partiality	196 minutes, 45 seconds
Penumbral	311 minutes, 30 seconds
P1
Contacts (UTC)
P1	02:36:30
U1	03:33:54
U2	04:41:17
Greatest	05:12:16
U3	05:43:16
U4	06:50:39
P4	07:48:00
	← July 2018 July 2019 →

A total lunar eclipse will take place on 21 January 2019 UTC (Coordinated Universal Time). For observers in the Americas, the eclipse will take place between the evening of Sunday, January 20 and the early morning hours of Monday, January 21. For observers in Europe and Africa, the eclipse will occur during the morning of January 21. The eclipse will occur during a supermoon. It will also be the last total lunar eclipse until May 2021.

Visibility

The eclipse will be visible in its entirety from North and South America, as well as portions of western Europe and northwest Africa. From locations in North America, the eclipse will begin during the evening hours of January 20. Observers at locations in Europe and much parts of Africa will be able to view part of the eclipse before the Moon sets in the early morning (pre-dawn) hours of January 21.

View of Earth from Moon during greatest eclipse	Visibility map

Timing

The timing of total lunar eclipses are determined by its contacts:^[1]

P1 (First contact): Beginning of the penumbral eclipse. Earth's penumbra touches the Moon's outer limb.
U1 (Second contact): Beginning of the partial eclipse. Earth's umbra touches the Moon's outer limb.
U2 (Third contact): Beginning of the total eclipse. The Moon's surface is entirely within Earth's umbra.
Greatest eclipse: The peak stage of the total eclipse. The Moon is at its closest to the center of Earth's umbra.
U3 (Fourth contact): End of the total eclipse. The Moon's outer limb exits Earth's umbra.
U4 (Fifth contact): End of the partial eclipse. Earth's umbra leaves the Moon's surface.
P4 (Sixth contact): End of the penumbral eclipse. Earth's penumbra no longer makes contact with the Moon.

The penumbral phases of the eclipse changes the appearance of the Moon only slightly and is generally not noticeable.^[2]

Local times of contacts
Timezone adjustments from UTC		Americas					Atlantic			European/African
		-8_h	-7_h	-6_h	-5_h	-4_h	-3_h	-2_h	-1_h	0_h	+1_h	+2_h	+3_h
		PST	MST	CST	EST	AST				GMT WET	WEST CET BST	CEST EET MSK−1	FET MSK EAT
Event		Evening January 20						Morning January 21
P1	Penumbral begins*	6:37 pm	7:37 pm	8:37 pm	9:37 pm	10:37 pm	11:37 pm	12:37 am	1:37 am	2:37 am	3:37 am	4:37 am	5:37 am
U1	Partial begins	7:34 pm	8:34 pm	9:34 pm	10:34 pm	11:34 pm	12:34 am	1:34 am	2:34 am	3:34 am	4:34 am	5:34 am	6:34 am
U2	Total begins	8:41 pm	9:41 pm	10:41 pm	11:41 pm	12:41 am	1:41 am	2:41 am	3:41 am	4:41 am	5:41 am	6:41 am	7:41 am
	Mid-eclipse	9:12 pm	10:12 pm	11:12 pm	12:12 am	1:12 am	2:12 am	3:12 am	4:12 am	5:12 am	6:12 am	7:12 am	8:12 am
U3	Total ends	9:43 pm	10:43 pm	11:43 pm	12:43 am	1:43 am	2:43 am	3:43 am	4:43 am	5:43 am	6:43 am	7:43 am	8:43 am
U4	Partial ends	10:51 pm	11:51 pm	12:51 am	1:51 am	2:51 am	3:51 am	4:51 am	5:51 am	6:51 am	7:51 am	8:51 am	9:51 am
P4	Penumbral ends*	11:48 pm	12:48 am	1:48 am	2:48 am	3:48 am	4:48 am	5:48 am	6:48 am	7:48 am	8:48 am	9:48 am	10:48 am

Appearance

It will take place in the constellation of Cancer, just west of the Beehive Cluster.

Related eclipses

Lunar year series

Lunar eclipse series sets from 2016–2020
Descending node				Ascending node
Saros	Date	Type Viewing	Gamma	Saros	Date Viewing	Type Chart	Gamma
109	2016 Aug 18	Penumbral	1.56406	114	2017 Feb 11	Penumbral	−1.02548
119	2017 Aug 07	Partial	0.86690	124	2018 Jan 31	Total	−0.30143
129	2018 Jul 27	Total	0.11681	134	2019 Jan 21	Total	0.36842
139	2019 Jul 16	Partial	−0.64300	144	2020 Jan 10	Penumbral	1.07270
149	2020 Jul 05	Penumbral	−1.36387

Last set	2016 Sep 16			Last set	2016 Mar 23

Next set	2020 Jun 05			Next set	2020 Nov 30

Saros series

It is part of Saros cycle 134.

Half-Saros cycle

A lunar eclipse will be preceded and followed by solar eclipses by 9 years and 5.5 days (a half saros).^[3] This lunar eclipse is related to two annular solar eclipses of Solar Saros 141.

January 15, 2010	January 26, 2028

References

^ Clarke, Kevin. "On the nature of eclipses". Inconstant Moon. Cyclopedia Selenica. Retrieved 19 December 2010.
^ Espenak, Fred. "Lunar Eclipses for Beginners". MrEclipse. Retrieved 7 April 2014.
^ Mathematical Astronomy Morsels, Jean Meeus, p.110, Chapter 18, The half-saros

External links

2019 Jan 21 chart: Eclipse Predictions by Fred Espenak, NASA/GSFC
Hermit eclipse: 2019-01-21
Eclipse information from skyandtelescope.com, including timing in different time zones

This lunar eclipse-related article is a stub. You can help Wikipedia by expanding it.

[1] Clarke, Kevin. "On the nature of eclipses". Inconstant Moon. Cyclopedia Selenica. Retrieved 19 December 2010.

[2] Espenak, Fred. "Lunar Eclipses for Beginners". MrEclipse. Retrieved 7 April 2014.

[3] Mathematical Astronomy Morsels, Jean Meeus, p.110, Chapter 18, The half-saros

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