A penumbral lunar eclipse will occur at the Moon’s descending node of orbit on Saturday, February 20, 2027,[1] with an umbral magnitude of −0.0549. 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 1.5 days after perigee (on February 19, 2027, at 11:45 UTC), the Moon's apparent diameter will be larger.[2]
| Penumbral eclipse | |||||||||
 The Moon's hourly motion shown right to left | |||||||||
| Date | February 20, 2027 | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| Gamma | −1.0480 | ||||||||
| Magnitude | −0.0549 | ||||||||
| Saros cycle | 143 (19 of 73) | ||||||||
| Penumbral | 240 minutes, 59 seconds | ||||||||
| |||||||||
Visibility
editThe eclipse will be completely visible over Africa, Europe, and west, central, and south Asia, seen rising over North and South America and setting over east Asia and western Australia.[3]
|
Eclipse details
editShown below is a table displaying details about this particular solar eclipse. It describes various parameters pertaining to this eclipse.[4]
| Parameter | Value |
|---|---|
| Penumbral Magnitude | 0.92861 |
| Umbral Magnitude | −0.05491 |
| Gamma | −1.04803 |
| Sun Right Ascension | 22h16m18.3s |
| Sun Declination | -10°43'53.9" |
| Sun Semi-Diameter | 16'10.5" |
| Sun Equatorial Horizontal Parallax | 08.9" |
| Moon Right Ascension | 10h14m23.7s |
| Moon Declination | 09°47'16.6" |
| Moon Semi-Diameter | 16'26.8" |
| Moon Equatorial Horizontal Parallax | 1°00'21.6" |
| ΔT | 72.5 s |
Eclipse season
editThis 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.
| February 6 Ascending node (new moon) |
February 20 Descending node (full moon) |
|---|---|
 |
|
| Annular solar eclipse Solar Saros 131 |
Penumbral lunar eclipse Lunar Saros 143 |
Related eclipses
editEclipses in 2027
edit- An annular solar eclipse on February 6.
- A penumbral lunar eclipse on February 20.
- A penumbral lunar eclipse on July 18.
- A total solar eclipse on August 2.
- A penumbral lunar eclipse on August 17.
Metonic
edit- Preceded by: Lunar eclipse of May 5, 2023
- Followed by: Lunar eclipse of December 9, 2030
Tzolkinex
edit- Preceded by: Lunar eclipse of January 10, 2020
- Followed by: Lunar eclipse of April 3, 2034
Half-Saros
edit- Preceded by: Solar eclipse of February 15, 2018
- Followed by: Solar eclipse of February 27, 2036
Tritos
edit- Preceded by: Lunar eclipse of March 23, 2016
- Followed by: Lunar eclipse of January 21, 2038
Lunar Saros 143
edit- Preceded by: Lunar eclipse of February 9, 2009
- Followed by: Lunar eclipse of March 3, 2045
Inex
edit- Preceded by: Lunar eclipse of March 13, 1998
- Followed by: Lunar eclipse of February 1, 2056
Triad
edit- Preceded by: Lunar eclipse of April 22, 1940
- Followed by: Lunar eclipse of December 22, 2113
Lunar eclipses of 2024–2027
edit| Lunar eclipse series sets from 2024–2027 | ||||||||
|---|---|---|---|---|---|---|---|---|
| Descending node | Ascending node | |||||||
| Saros | Date | Type Viewing |
Gamma | Saros | Date Viewing |
Type Chart |
Gamma | |
113
|
2024 Mar 25
|
Penumbral
|
1.06098 | 118
|
2024 Sep 18
|
Partial
|
−0.97920 | |
| 123 | 2025 Mar 14
|
Total
|
0.34846 | 128 | 2025 Sep 07
|
Total
|
−0.27521 | |
| 133 | 2026 Mar 03
|
Total
|
−0.37651 | 138 | 2026 Aug 28
|
Partial
|
0.49644 | |
| 143 | 2027 Feb 20
|
Penumbral
|
−1.04803 | 148 | 2027 Aug 17
|
Penumbral
|
1.27974 | |
| Last set | 2023 May 05 | Last set | 2023 Oct 28 | |||||
| Next set | 2028 Jan 12 | Next set | 2027 Jul 18 | |||||
Saros 143
editIt is part of Saros cycle 143.
Metonic series
editThis is the last of five Metonic lunar eclipses.
The Metonic cycle repeats nearly exactly every 19 years and represents a Saros cycle plus one lunar year. Because it occurs on the same calendar date, the Earth's shadow will in nearly the same location relative to the background stars.
| Descending node | Ascending node | |||||
|---|---|---|---|---|---|---|
| Saros | Date | Type | Saros | Date | Type | |
| 103 | 1951 Feb 21.88 | Penumbral | 108 | 1951 Aug 17.13 | Penumbral | |
|
| |||||
| 113 | 1970 Feb 21.35 | Partial | 118 | 1970 Aug 17.14 | Partial | |
|
| |||||
| 123 | 1989 Feb 20.64 | Total | 128 | 1989 Aug 17.13 | Total | |
|
| |||||
| 133 | 2008 Feb 21.14 | Total | 138 | 2008 Aug 16.88 | Partial | |
|
| |||||
| 143 | 2027 Feb 20.96 | Penumbral | 148 | 2027 Aug 17.30 | Penumbral | |
|
| |||||
Half-Saros cycle
editA lunar eclipse will be preceded and followed by solar eclipses by 9 years and 5.5 days (a half saros).[5] This lunar eclipse is related to two partial solar eclipses of Solar Saros 150.
| February 15, 2018 | February 27, 2036 |
|---|---|
|
|
See also
editReferences
edit- ^ "February 20–21, 2027 Penumbral Lunar Eclipse". timeanddate. Retrieved 19 November 2024.
- ^ "Moon Distances for London, United Kingdom, England". timeanddate. Retrieved 19 November 2024.
- ^ "Penumbral Lunar Eclipse of 2027 Feb 20" (PDF). NASA. Retrieved 19 November 2024.
- ^ "Penumbral Lunar Eclipse of 2027 Feb 20". EclipseWise.com. Retrieved 19 November 2024.
- ^ Mathematical Astronomy Morsels, Jean Meeus, p.110, Chapter 18, The half-saros
External links
edit- Saros cycle 143
- 2027 Feb 20 chart: Eclipse Predictions by Fred Espenak, NASA/GSFC
 | This lunar eclipse-related article is a stub. You can help Wikipedia by expanding it. |