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January 2020 lunar eclipse

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January 2020 lunar eclipse
Penumbral eclipse
Near greatest eclipse in Austria, 19:10 UTC
DateJanuary 10, 2020
Gamma1.0726
Magnitude−0.1146
Saros cycle144 (16 of 71)
Penumbral244 minutes, 34 seconds
Contacts (UTC)
P117:07:45
Greatest19:09:59
P421:12:19

A penumbral lunar eclipse occurred at the Moon’s ascending node of orbit on Friday, January 10, 2020,[1] with an umbral magnitude of −0.1146. A lunar eclipse occurs when the Moon moves into the Earth's shadow, causing the Moon to be darkened. A penumbral lunar eclipse occurs when part or all of the Moon's near side passes into the Earth's penumbra. Unlike a solar eclipse, which can only be viewed from a relatively small area of the world, a lunar eclipse may be viewed from anywhere on the night side of Earth. Occurring about 2.8 days before perigee (on January 13, 2020, at 15:20 UTC), the Moon's apparent diameter was larger.[2]

This eclipse was the first of four penumbral lunar eclipses in 2020, with the others occurring on June 5, July 5, and November 30.

Visibility

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The eclipse was completely visible over east Africa, Europe, and Asia, seen rising over the west Africa and northern North America and setting over Australia and the central Pacific Ocean.[3]


Visibility map
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Eclipse details

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Shown below is a table displaying details about this particular solar eclipse. It describes various parameters pertaining to this eclipse.[4]

January 10, 2020 Lunar Eclipse Parameters
Parameter Value
Penumbral Magnitude 0.89692
Umbral Magnitude −0.11460
Gamma 1.07270
Sun Right Ascension 19h26m32.0s
Sun Declination -21°56'49.6"
Sun Semi-Diameter 16'15.9"
Sun Equatorial Horizontal Parallax 08.9"
Moon Right Ascension 07h26m45.8s
Moon Declination +23°00'02.8"
Moon Semi-Diameter 16'04.8"
Moon Equatorial Horizontal Parallax 0°59'00.8"
ΔT 69.5 s

Eclipse season

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See also: Eclipse cycle

This eclipse is part of an eclipse season, a period, roughly every six months, when eclipses occur. Only two (or occasionally three) eclipse seasons occur each year, and each season lasts about 35 days and repeats just short of six months (173 days) later; thus two full eclipse seasons always occur each year. Either two or three eclipses happen each eclipse season. In the sequence below, each eclipse is separated by a fortnight.

Eclipse season of December 2019–January 2020
December 26
Descending node (new moon)
 January 10
Ascending node (full moon)
Annular solar eclipse
Solar Saros 132		 Penumbral lunar eclipse
Lunar Saros 144
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Eclipses in 2020

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Metonic

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Tzolkinex

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Half-Saros

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Tritos

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Lunar Saros 144

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Inex

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Triad

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Lunar eclipses of 2016–2020

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This eclipse is a member of a semester series. An eclipse in a semester series of lunar eclipses repeats approximately every 177 days and 4 hours (a semester) at alternating nodes of the Moon's orbit.[5]

The penumbral lunar eclipses on March 23, 2016 and September 16, 2016 occur in the previous lunar year eclipse set, and the penumbral lunar eclipses on June 5, 2020 and November 30, 2020 occur in the next lunar year eclipse set.

Lunar eclipse series sets from 2016 to 2020
Descending node   Ascending node
Saros Date
Viewing 		Type
Chart 		Gamma Saros Date
Viewing 		Type
Chart 		Gamma
109 2016 Aug 18
 Penumbral
 1.5641 114
 2017 Feb 11
 Penumbral
 −1.0255
119
 2017 Aug 07
 Partial
 0.8669 124
 2018 Jan 31
 Total
 −0.3014
129
 2018 Jul 27
 Total
 0.1168 134
 2019 Jan 21
 Total
 0.3684
139
 2019 Jul 16
 Partial
 −0.6430 144
 2020 Jan 10
 Penumbral
 1.0727
149 2020 Jul 05
 Penumbral
 −1.3639

Saros 144

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This eclipse is a part of Saros series 144, repeating every 18 years, 11 days, and containing 71 events. The series started with a penumbral lunar eclipse on July 29, 1749. It contains partial eclipses from March 28, 2146 through June 23, 2290; total eclipses from July 4, 2308 through January 28, 2651; and a second set of partial eclipses from February 8, 2669 through June 8, 2867. The series ends at member 71 as a penumbral eclipse on September 4, 3011.

The longest duration of totality will be produced by member 38 at 104 minutes, 53 seconds on September 7, 2416. All eclipses in this series occur at the Moon’s ascending node of orbit.[6]

Greatest First
The greatest eclipse of the series will occur on 2416 Sep 07, lasting 104 minutes, 53 seconds.[7] Penumbral Partial Total Central
1749 Jul 29
 2146 Mar 28
 2308 Jul 04
 2362 Aug 06
Last
Central Total Partial Penumbral
2488 Oct 20
 2651 Jan 28
 2867 Jun 08
 3011 Sep 04

Eclipses are tabulated in three columns; every third eclipse in the same column is one exeligmos apart, so they all cast shadows over approximately the same parts of the Earth.

Half-Saros cycle

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A lunar eclipse will be preceded and followed by solar eclipses by 9 years and 5.5 days (a half saros).[8] This lunar eclipse is related to two partial solar eclipses of Solar Saros 151.

January 4, 2011 January 14, 2029

See also

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References

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  1. ^ "January 10–11, 2020 Penumbral Lunar Eclipse". timeanddate. Retrieved 17 November 2024.
  2. ^ "Moon Distances for London, United Kingdom, England". timeanddate. Retrieved 17 November 2024.
  3. ^ "Penumbral Lunar Eclipse of 2020 Jan 10" (PDF). NASA. Retrieved 17 November 2024.
  4. ^ "Penumbral Lunar Eclipse of 2020 Jan 10". EclipseWise.com. Retrieved 17 November 2024.
  5. ^ van Gent, R.H. "Solar- and Lunar-Eclipse Predictions from Antiquity to the Present". A Catalogue of Eclipse Cycles. Utrecht University. Retrieved 6 October 2018.
  6. ^ "NASA - Catalog of Lunar Eclipses of Saros 144". eclipse.gsfc.nasa.gov.
  7. ^ Listing of Eclipses of series 144
  8. ^ Mathematical Astronomy Morsels, Jean Meeus, p.110, Chapter 18, The half-saros
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