November 2020 lunar eclipse
| Penumbral eclipse | |||||||||
| File:Penumbral lunar eclipse nov-11-2020-tlr1.jpg Penumbral eclipse as viewed from Minneapolis, MN, 9:24 UTC | |||||||||
| Date | November 30, 2020 | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| Gamma | −1.1309 | ||||||||
| Magnitude | −0.2602 | ||||||||
| Saros cycle | 116 (58 of 73) | ||||||||
| Penumbral | 260 minutes, 59 seconds | ||||||||
| |||||||||
A penumbral lunar eclipse occurred at the Moon’s ascending node of orbit on Monday, November 30, 2020,[1] with an umbral magnitude of −0.2602. 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 3.6 days after apogee (on November 26, 2020, at 19:30 UTC), the Moon's apparent diameter was smaller.[2]
This eclipse was the last of four penumbral lunar eclipses in 2020, with the others occurring on January 10, June 5, and July 5.
Visibility
[edit | edit source]The eclipse was completely visible over northeast Asia and North America, seen rising over east Asia and Australia and setting over South America.[3]
| File:Lunar eclipse from moon-2020Nov30.png File:Lunar eclipse chart close-2020Nov30.png |
| File:Visibility Lunar Eclipse 2020-11-30.png Visibility map |
Gallery
[edit | edit source]-
Minneapolis, 1:45 UT and 9:24 UT
-
9:40 UT
Eclipse details
[edit | edit source]Shown below is a table displaying details about this particular lunar eclipse. It describes various parameters pertaining to this eclipse.[4]
| Parameter | Value |
|---|---|
| Penumbral Magnitude | 0.83023 |
| Umbral Magnitude | −0.26023 |
| Gamma | −1.13094 |
| Sun Right Ascension | 16h27m40.0s |
| Sun Declination | -21°44'31.0" |
| Sun Semi-Diameter | 16'13.1" |
| Sun Equatorial Horizontal Parallax | 08.9" |
| Moon Right Ascension | 04h28m46.7s |
| Moon Declination | +20°44'46.4" |
| Moon Semi-Diameter | 14'52.4" |
| Moon Equatorial Horizontal Parallax | 0°54'35.1" |
| ΔT | 69.8 s |
Eclipse season
[edit | edit source]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.
| November 30 Ascending node (full moon) |
December 14 Descending node (new moon) |
|---|---|
| File:Lunar eclipse chart close-2020Nov30.png | File:SE2020Dec14T.png |
| Penumbral lunar eclipse Lunar Saros 116 |
Total solar eclipse Solar Saros 142 |
Related eclipses
[edit | edit source]Eclipses in 2020
[edit | edit source]- A penumbral lunar eclipse on January 10.
- A penumbral lunar eclipse on June 5.
- An annular solar eclipse on June 21.
- A penumbral lunar eclipse on July 5.
- A penumbral lunar eclipse on November 30.
- A total solar eclipse on December 14.
Metonic
[edit | edit source]- Preceded by: Lunar eclipse of February 11, 2017
- Followed by: Lunar eclipse of September 18, 2024
Tzolkinex
[edit | edit source]- Preceded by: Lunar eclipse of October 18, 2013
- Followed by: Lunar eclipse of January 12, 2028
Half-Saros
[edit | edit source]- Preceded by: Solar eclipse of November 25, 2011
- Followed by: Solar eclipse of December 5, 2029
Tritos
[edit | edit source]- Preceded by: Lunar eclipse of December 31, 2009
- Followed by: Lunar eclipse of October 30, 2031
Lunar Saros 116
[edit | edit source]- Preceded by: Lunar eclipse of November 20, 2002
- Followed by: Lunar eclipse of December 11, 2038
Inex
[edit | edit source]- Preceded by: Lunar eclipse of December 21, 1991
- Followed by: Lunar eclipse of November 9, 2049
Triad
[edit | edit source]- Preceded by: Lunar eclipse of January 30, 1934
- Followed by: Lunar eclipse of October 2, 2107
Lunar eclipses of 2020–2023
[edit | edit source]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 January 10, 2020 and July 5, 2020 occur in the previous lunar year eclipse set.
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Saros 116
[edit | edit source]This eclipse is a part of Saros series 116, repeating every 18 years, 11 days, and containing 73 events. The series started with a penumbral lunar eclipse on March 11, 993 AD. It contains partial eclipses from June 16, 1155 through September 11, 1299; total eclipses from September 21, 1317 through July 11, 1786; and a second set of partial eclipses from July 22, 1804 through October 7, 1930. The series ends at member 73 as a penumbral eclipse on May 14, 2291.
The longest duration of totality was produced by member 40 at 102 minutes, 40 seconds on May 16, 1696. All eclipses in this series occur at the Moon’s ascending node of orbit.[6]
| Greatest | First | |||
|---|---|---|---|---|
| The greatest eclipse of the series occurred on 1696 May 16, lasting 102 minutes, 40 seconds.[7] | Penumbral | Partial | Total | Central |
| 993 Mar 11 |
1155 Jun 16 |
1317 Sep 21 |
1588 Mar 13 | |
| Last | ||||
| Central | Total | Partial | Penumbral | |
| 1750 Jun 19 |
1786 Jul 11 |
1930 Oct 07 File:Lunar eclipse chart close-1930Oct07.png |
2291 May 14 | |
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.
Tritos series
[edit | edit source]This eclipse is a part of a tritos cycle, repeating at alternating nodes every 135 synodic months (≈ 3986.63 days, or 11 years minus 1 month). Their appearance and longitude are irregular due to a lack of synchronization with the anomalistic month (period of perigee), but groupings of 3 tritos cycles (≈ 33 years minus 3 months) come close (≈ 434.044 anomalistic months), so eclipses are similar in these groupings.
Inex series
[edit | edit source]This eclipse is a part of the long period inex cycle, repeating at alternating nodes, every 358 synodic months (≈ 10,571.95 days, or 29 years minus 20 days). Their appearance and longitude are irregular due to a lack of synchronization with the anomalistic month (period of perigee). However, groupings of 3 inex cycles (≈ 87 years minus 2 months) comes close (≈ 1,151.02 anomalistic months), so eclipses are similar in these groupings.
| Series members between 1801 and 2200 | |||||
|---|---|---|---|---|---|
| 1818 Apr 21 (Saros 109) |
1847 Mar 31 (Saros 110) |
1876 Mar 10 (Saros 111) | |||
| 1905 Feb 19 (Saros 112) |
1934 Jan 30 (Saros 113) |
1963 Jan 09 (Saros 114) | |||
| File:Lunar eclipse chart close-1905Feb19.png | File:Lunar eclipse from moon-1905Feb19.png | File:Lunar eclipse chart close-1934Jan30.png | File:Lunar eclipse from moon-1934Jan30.png | File:Lunar eclipse chart close-1963Jan09.png | File:Lunar eclipse from moon-1963Jan09.png |
| 1991 Dec 21 (Saros 115) |
2020 Nov 30 (Saros 116) |
2049 Nov 09 (Saros 117) | |||
| File:Lunar eclipse chart close-1991Dec21.png | File:Lunar eclipse from moon-1991Dec21.png | File:Lunar eclipse chart close-2020Nov30.png | File:Lunar eclipse from moon-2020Nov30.png | File:Lunar eclipse chart close-2049Nov09.png | File:Lunar eclipse from moon-2049Nov09.png |
| 2078 Oct 21 (Saros 118) |
2107 Oct 02 (Saros 119) |
2136 Sep 10 (Saros 120) | |||
| 2165 Aug 21 (Saros 121) |
2194 Aug 02 (Saros 122) | ||||
Half-Saros cycle
[edit | edit source]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 123.
| November 25, 2011 | December 5, 2029 |
|---|---|
| File:SE2011Nov25P.png | File:SE2029Dec05P.png |
See also
[edit | edit source]References
[edit | edit source]- ^ Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
- ^ Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
- ^ Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
- ^ Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
- ^ Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
- ^ Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
- ^ Listing of Eclipses of series 116
- ^ Mathematical Astronomy Morsels, Jean Meeus, p.110, Chapter 18, The half-saros
External links
[edit | edit source]- Saros cycle 116
- 2020 Nov 30 chart: Eclipse Predictions by Fred Espenak, NASA/GSFC
