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November 2021 lunar eclipse

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November 2021 lunar eclipse
Partial eclipse
Starkville, Mississippi at maximum, 9:03 UTC
Date19 November 2021
Gamma-0.4552[1]
Magnitude0.9742[1]
Saros cycle126 (46 of 72[1])
Partiality208 minutes, 23 seconds[1]
Penumbral361 minutes, 29 seconds[1]
Contacts (UTC)
P16:02:09[1]
U17:18:41[1]
Greatest9:02:53[1]
U410:47:04[1]
P412:03:38[1]

A partial lunar eclipse occurred on 19 November 2021. The eclipse occurred towards a micromoon.[2] This was the longest partial lunar eclipse since 18 February 1440, and the longest until 8 February, 2669; however, many eclipses, including the November 2022 lunar eclipse, have a longer period of umbral contact at next to 3 hours 40 minutes.[3] It was often referred to as a "Beaver Blood Moon" although not technically fulfilling the criteria for a true blood moon (totality).

This lunar eclipse was the second of an almost tetrad, the others being 26 May 2021 (T), 16 May 2022 (T) and 08 Nov 2022 (T).

Visibility

In northern and western Europe and the westernmost parts of Africa, the first phase of the eclipse was visible, as the Moon set below the horizon on the morning of Friday, 19 November 2021. The fullest extent of the lunar eclipse was visible over North and South America after midnight on Friday, with the event beginning in the latest hours of Thursday night over parts of Alaska and Hawaii. The entirety of the eclipse, from one side of the Earth's shadow to the other, occurred with the Moon visible above the horizon in nearly all of North America.[4]

In the Eastern Hemisphere, as the partially-eclipsed Moon began to rise at dusk, the eclipse became visible across the Pacific Ocean, Australia, and much of Asia. At places in extreme northern latitudes and areas in northern and eastern Russia, such as Kamchatka, the Moon was already visible by the time the eclipse began on Friday (and the eclipse ended just near Saturday midnight). There was little or no visibility for most of Africa, eastern Europe, and western or southern parts of Asia, including the Middle East and much of the Indian subcontinent.[5]


Visibility map

Observations

Other eclipses of 2021

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

Tritos series

The tritos series repeats 31 days short of 11 years at alternating nodes. Sequential events have incremental Saros cycle indices.

This series produces 20 total eclipses between April 24, 1967 and August 11, 2185, only being partial on November 19, 2021.

Tritos eclipse series (subset 1901–2087)
Descending node   Ascending node
Saros Date
Viewing 		Type
chart 		Saros Date
Viewing 		Type
chart
115 1901 Oct 27
 Partial
 116 1912 Sep 26
 Partial
117 1923 Aug 26
 Partial
 118 1934 Jul 26
 Partial
119 1945 Jun 25
 Partial
 120 1956 May 24
 Partial
121 1967 Apr 24
 Total
 122 1978 Mar 24
 Total
123 1989 Feb 20
 Total
 124 2000 Jan 21
 Total
125 2010 Dec 21
 Total
 126 2021 Nov 19
 Partial
127 2032 Oct 18
 Total
 128 2043 Sep 19
 Total
129 2054 Aug 18
 Total
 130 2065 Jul 17
 Total
131 2076 Jun 17
 Total
 132 2087 May 17
 Total
133 2098 Apr 15
 Total

Saros series

It is part of saros series 126.

Lunar saros series 126, repeating every 18 years and 11 days, has a total of 70 lunar eclipse events including 14 total lunar eclipses. Solar Saros 133 interleaves with this lunar saros with an event occurring every 9 years 5 days alternating between each saros series.

First penumbral lunar eclipse: 18 July 1228

First partial lunar eclipse: 24 March 1625

First total lunar eclipse: 19 June 1769

First central lunar eclipse: 11 July 1805

Greatest eclipse of the lunar saros 126: 13 August 1859, lasting 106 minutes.

Last central lunar eclipse: 26 September 1931

Last total lunar eclipse: 9 November 2003

Last partial lunar eclipse: 5 June 2346

Last penumbral lunar eclipse: 19 August 2472

1901-2100

15 September 1913

26 September 1931

7 October 1949

18 October 1967

28 October 1985

9 November 2003

19 November 2021

30 November 2039

11 December 2057

22 December 2075

1 January 2094


Metonic series

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 133.

13 November 2012 25 November 2030

Tzolkinex

See also

References

  1. ^ a b c d e f g h i j 2021 Nov 19 chart: Eclipse Predictions by Fred Espenak, NASA/GSFC
  2. ^ "Longest partial eclipse in centuries bathes Moon in red". www.aljazeera.com. Aljazeera. Retrieved 19 November 2021.
  3. ^ "What makes certain lunar eclipses so special? (Beginner) - Curious About Astronomy? Ask an Astronomer". curious.astro.cornell.edu. Cornell Astronomy. Retrieved 14 November 2021.
  4. ^ News, Sa (15 November 2021). "Chandra Grahan 2021: Longest Partial Lunar Eclipse of the Millennium". SA News Channel. Retrieved 19 November 2021. {{cite web}}: |last= has generic name (help)
  5. ^ Wright, Molly Wasser and Ernie. "An Almost Total Lunar Eclipse". Moon: NASA Science. Retrieved 19 November 2021.
  6. ^ Mathematical Astronomy Morsels, Jean Meeus, p.110, Chapter 18, The half-saros
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