| Total eclipse | |||||||||||||||||
 The Moon's hourly motion shown right to left | |||||||||||||||||
| Date | February 22, 2054 | ||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Gamma | −0.3242 | ||||||||||||||||
| Magnitude | 1.2781 | ||||||||||||||||
| Saros cycle | 124 (51 of 74) | ||||||||||||||||
| Totality | 72 minutes, 8 seconds | ||||||||||||||||
| Partiality | 200 minutes, 53 seconds | ||||||||||||||||
| Penumbral | 314 minutes, 45 seconds | ||||||||||||||||
| |||||||||||||||||
A totallunar eclipse will occur at the Moon’sascending node of orbit on Sunday, February 22, 2054,[1] with an umbralmagnitude of 1.2781. A lunar eclipse occurs when theMoon moves into theEarth'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 asolar eclipse, which can only be viewed from a relatively small area of the world, a lunar eclipse may be viewed from anywhere on thenight 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'sshadow is smaller. Occurring about 1.2 days beforeperigee (on February 21, 2054, at 2:55 UTC), the Moon's apparent diameter will be larger.[2]
This lunar eclipse will be the first of analmost tetrad, with the others being onAugust 18, 2054 (total);February 11, 2055 (total); andAugust 7, 2055 (partial).
The eclipse will be completely visible overNorth andSouth America, seen rising over much ofAfrica andEurope and setting overnortheast Asia and easternAustralia.[3]
 |
Shown below is a table displaying details about this particular solar eclipse. It describes various parameters pertaining to this eclipse.[4]
| Parameter | Value |
|---|---|
| Penumbral Magnitude | 2.25022 |
| Umbral Magnitude | 1.27805 |
| Gamma | −0.32419 |
| Sun Right Ascension | 22h23m02.4s |
| Sun Declination | -10°05'18.4" |
| Sun Semi-Diameter | 16'10.2" |
| Sun Equatorial Horizontal Parallax | 08.9" |
| Moon Right Ascension | 10h22m40.9s |
| Moon Declination | +09°46'14.8" |
| Moon Semi-Diameter | 16'38.0" |
| Moon Equatorial Horizontal Parallax | 1°01'02.7" |
| ΔT | 87.8 s |
This eclipse is part of aneclipse 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 afortnight.
| February 22 Ascending node (full moon) | March 9 Descending node (new moon) |
|---|---|
|  |
| Total lunar eclipse Lunar Saros 124 | Partial solar eclipse Solar Saros 150 |
This eclipse is a member of asemester series. An eclipse in a semester series of lunar eclipses repeats approximately every 177 days and 4 hours (a semester) at alternatingnodes of the Moon's orbit.[5]
The penumbral lunar eclipses onJune 27, 2056 andDecember 22, 2056 occur in the next lunar year eclipse set.
| Lunar eclipse series sets from 2053 to 2056 | ||||||||
|---|---|---|---|---|---|---|---|---|
| Ascending node | Descending node | |||||||
| Saros | Date Viewing | Type Chart | Gamma | Saros | Date Viewing | Type Chart | Gamma | |
| 114 | 2053 Mar 04 | Penumbral | −1.0530 | 119 | 2053 Aug 29 | Penumbral | 1.0165 | |
| 124 | 2054 Feb 22 | Total | −0.3242 | 129 | 2054 Aug 18 | Total | 0.2806 | |
| 134 | 2055 Feb 11 | Total | 0.3526 | 139 | 2055 Aug 07 | Partial | −0.4769 | |
| 144 | 2056 Feb 01 | Penumbral | 1.0682 | 149 | 2056 Jul 26 | Partial | −1.2048 | |
This eclipse is a part ofSaros series 124, repeating every 18 years, 11 days, and containing 73 events. The series started with a penumbral lunar eclipse on August 17, 1152. It contains partial eclipses from March 21, 1513 through June 15, 1639; total eclipses from June 25, 1657 through April 18, 2144; and a second set of partial eclipses from April 29, 2162 through July 14, 2288. The series ends at member 73 as a penumbral eclipse on October 21, 2450.
The longest duration of totality was produced by member 39 at 101 minutes, 27 seconds on August 30, 1765. All eclipses in this series occur at the Moon’sascending node of orbit.[6]
| Greatest | First | |||
|---|---|---|---|---|
| The greatest eclipse of the series occurred on1765 Aug 30, lasting 101 minutes, 27 seconds.[7] | Penumbral | Partial | Total | Central |
| 1152 Aug 17 | 1513 Mar 21 | 1657 Jun 25 | 1711 Jul 29 | |
| Last | ||||
| Central | Total | Partial | Penumbral | |
1909 Nov 27 | 2144 Apr 18 | 2288 Jul 14 | 2450 Oct 21 | |
Eclipses are tabulated in three columns; every third eclipse in the same column is oneexeligmos apart, so they all cast shadows over approximately the same parts of the Earth.
| Series members 37–59 occur between 1801 and 2200: | |||||
|---|---|---|---|---|---|
| 37 | 38 | 39 | |||
| 1801 Sep 22 | 1819 Oct 03 | 1837 Oct 13 | |||
| 40 | 41 | 42 | |||
| 1855 Oct 25 | 1873 Nov 04 | 1891 Nov 16 | |||
| 43 | 44 | 45 | |||
| 1909 Nov 27 | 1927 Dec 08 | 1945 Dec 19 | |||
|  |  |  |  |  |
| 46 | 47 | 48 | |||
| 1963 Dec 30 | 1982 Jan 09 | 2000 Jan 21 | |||
 |  |  |  |  |  |
| 49 | 50 | 51 | |||
| 2018 Jan 31 | 2036 Feb 11 | 2054 Feb 22 | |||
 |  |  |  | | |
| 52 | 53 | 54 | |||
| 2072 Mar 04 | 2090 Mar 15 | 2108 Mar 27 | |||
| 55 | 56 | 57 | |||
| 2126 Apr 07 | 2144 Apr 18 | 2162 Apr 29 | |||
| 58 | 59 | ||||
| 2180 May 09 | 2198 May 20 | ||||
This eclipse is a part of atritos cycle, repeating at alternating nodes every 135synodic months (≈ 3986.63 days, or 11 years minus 1 month). Their appearance and longitude are irregular due to a lack of synchronization with theanomalistic 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.
| Series members between 1801 and 2200 | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| 1803 Feb 06 (Saros 101) | 1814 Jan 06 (Saros 102) | 1824 Dec 06 (Saros 103) | 1846 Oct 04 (Saros 105) | ||||||
| 1857 Sep 04 (Saros 106) | 1868 Aug 03 (Saros 107) | 1879 Jul 03 (Saros 108) | 1890 Jun 03 (Saros 109) | 1901 May 03 (Saros 110) | |||||
 |  | ||||||||
| 1912 Apr 01 (Saros 111) | 1923 Mar 03 (Saros 112) | 1934 Jan 30 (Saros 113) | 1944 Dec 29 (Saros 114) | 1955 Nov 29 (Saros 115) | |||||
 |  |  |  |  |  |  |  |  |  |
| 1966 Oct 29 (Saros 116) | 1977 Sep 27 (Saros 117) | 1988 Aug 27 (Saros 118) | 1999 Jul 28 (Saros 119) | 2010 Jun 26 (Saros 120) | |||||
 |  |  |  |  |  |  |  |  |  |
| 2021 May 26 (Saros 121) | 2032 Apr 25 (Saros 122) | 2043 Mar 25 (Saros 123) | 2054 Feb 22 (Saros 124) | 2065 Jan 22 (Saros 125) | |||||
 |  |  |  |  |  | | | ||
| 2075 Dec 22 (Saros 126) | 2086 Nov 20 (Saros 127) | 2097 Oct 21 (Saros 128) | 2108 Sep 20 (Saros 129) | 2119 Aug 20 (Saros 130) | |||||
| 2130 Jul 21 (Saros 131) | 2141 Jun 19 (Saros 132) | 2152 May 18 (Saros 133) | 2163 Apr 19 (Saros 134) | 2174 Mar 18 (Saros 135) | |||||
| 2185 Feb 14 (Saros 136) | 2196 Jan 15 (Saros 137) | ||||||||
This eclipse is a part of the long periodinex cycle, repeating at alternating nodes, every 358synodic months (≈ 10,571.95 days, or 29 years minus 20 days). Their appearance and longitude are irregular due to a lack of synchronization with theanomalistic 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 | |||||
|---|---|---|---|---|---|
| 1822 Aug 03 (Saros 116) | 1851 Jul 13 (Saros 117) | 1880 Jun 22 (Saros 118) | |||
| 1909 Jun 04 (Saros 119) | 1938 May 14 (Saros 120) | 1967 Apr 24 (Saros 121) | |||
 |  |  |  |  |  |
| 1996 Apr 04 (Saros 122) | 2025 Mar 14 (Saros 123) | 2054 Feb 22 (Saros 124) | |||
 |  |  |  | | |
| 2083 Feb 02 (Saros 125) | 2112 Jan 14 (Saros 126) | 2140 Dec 23 (Saros 127) | |||
| 2169 Dec 04 (Saros 128) | 2198 Nov 13 (Saros 129) | ||||
A lunar eclipse will be preceded and followed by solar eclipses by 9 years and 5.5 days (ahalf saros).[8] This lunar eclipse is related to two solar eclipses ofSolar Saros 131.
| February 16, 2045 | February 28, 2063 |
|---|---|
 |  |
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