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February 2055 lunar eclipse
Astronomical event From Wikipedia, the free encyclopedia
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A total lunar eclipse will occur at the Moon’s ascending node of orbit on Thursday, February 11, 2055,[1] with an umbral magnitude of 1.2258. A lunar eclipse occurs when the Moon moves into the Earth's shadow, causing the Moon to be darkened. A total lunar eclipse occurs when the Moon's near side entirely passes into the Earth's umbral shadow. 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. A total lunar eclipse can last up to nearly two hours, while a total solar eclipse lasts only a few minutes at any given place, because the Moon's shadow is smaller. Occurring only about 15 hours before perigee (on February 12, 2055, at 13:00 UTC), the Moon's apparent diameter will be larger.[2]
This lunar eclipse will be the third of an almost tetrad, with the others being on February 22, 2054 (total); August 18, 2054 (total); and August 7, 2055 (partial).
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Visibility
The eclipse will be completely visible over Africa, Europe, and west, central, and south Asia, seen rising over much of North and South America and setting over east Asia and western Australia.[3]
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Eclipse details
Shown below is a table displaying details about this particular solar eclipse. It describes various parameters pertaining to this eclipse.[4]
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Eclipse season
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.
Related eclipses
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Eclipses in 2055
- A partial solar eclipse on January 27.
- A total lunar eclipse on February 11.
- A total solar eclipse on July 24.
- A partial lunar eclipse on August 7.
Metonic
- Preceded by: Lunar eclipse of April 26, 2051
- Followed by: Lunar eclipse of November 30, 2058
Tzolkinex
- Preceded by: Lunar eclipse of January 1, 2048
- Followed by: Lunar eclipse of March 25, 2062
Half-Saros
- Preceded by: Solar eclipse of February 5, 2046
- Followed by: Solar eclipse of February 17, 2064
Tritos
- Preceded by: Lunar eclipse of March 13, 2044
- Followed by: Lunar eclipse of January 11, 2066
Lunar Saros 134
- Preceded by: Lunar eclipse of January 31, 2037
- Followed by: Lunar eclipse of February 22, 2073
Inex
- Preceded by: Lunar eclipse of March 3, 2026
- Followed by: Lunar eclipse of January 22, 2084
Triad
- Preceded by: Lunar eclipse of April 13, 1968
- Followed by: Lunar eclipse of December 13, 2141
Lunar eclipses of 2053–2056
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 June 27, 2056 and December 22, 2056 occur in the next lunar year eclipse set.
Saros 134
This eclipse is a part of Saros series 134, repeating every 18 years, 11 days, and containing 72 events. The series started with a penumbral lunar eclipse on April 1, 1550. It contains partial eclipses from July 7, 1694 through October 13, 1856; total eclipses from October 25, 1874 through July 26, 2325; and a second set of partial eclipses from August 7, 2343 through November 12, 2505. The series ends at member 72 as a penumbral eclipse on May 28, 2830.
The longest duration of totality will be produced by member 38 at 100 minutes, 23 seconds on May 22, 2217. All eclipses in this series occur at the Moon’s ascending node of orbit.[6]
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
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
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.
Half-Saros cycle
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 total solar eclipses of Solar Saros 141.
| February 5, 2046 | February 17, 2064 |
|---|---|
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See also
Notes
External links
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