| Total eclipse | |||||||||||||||||
 The Moon's hourly motion shown right to left | |||||||||||||||||
| Date | March 25, 2043 | ||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Gamma | 0.3849 | ||||||||||||||||
| Magnitude | 1.1161 | ||||||||||||||||
| Saros cycle | 123 (54 of 72) | ||||||||||||||||
| Totality | 53 minutes, 24 seconds | ||||||||||||||||
| Partiality | 214 minutes, 37 seconds | ||||||||||||||||
| Penumbral | 359 minutes, 16 seconds | ||||||||||||||||
| |||||||||||||||||
A totallunar eclipse will occur at the Moon’sdescending node of orbit on Wednesday, March 25, 2043,[1] with an umbralmagnitude of 1.1161. 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 3.4 days beforeapogee (on March 29, 2043, at 1:30 UTC), the Moon's apparent diameter will be smaller.[2]
This lunar eclipse is the first of atetrad, with four total lunar eclipses in series, the others being onSeptember 19, 2043;March 13, 2044; andSeptember 7, 2044.
The eclipse will be completely visible overeast Asia,Australia, and the westernPacific Ocean, seen rising overcentral andeast Africa,eastern Europe, andwest,central, andsouth Asia and setting over much ofNorth America.[3]
 |
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 | 2.19197 |
| Umbral Magnitude | 1.11611 |
| Gamma | 0.38490 |
| Sun Right Ascension | 00h17m45.9s |
| Sun Declination | +01°55'21.5" |
| Sun Semi-Diameter | 16'02.4" |
| Sun Equatorial Horizontal Parallax | 08.8" |
| Moon Right Ascension | 12h18m26.9s |
| Moon Declination | -01°36'57.6" |
| Moon Semi-Diameter | 14'54.5" |
| Moon Equatorial Horizontal Parallax | 0°54'42.9" |
| ΔT | 81.0 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.
| March 25 Descending node (full moon) | April 9 Ascending node (new moon) |
|---|---|
|  |
| Total lunar eclipse Lunar Saros 123 | Total solar eclipse Solar Saros 149 |
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 eclipse onOctober 28, 2042 occurs in the previous lunar year eclipse set.
| Lunar eclipse series sets from 2042 to 2045 | ||||||||
|---|---|---|---|---|---|---|---|---|
| Descending node | Ascending node | |||||||
| Saros | Date Viewing | Type Chart | Gamma | Saros | Date Viewing | Type Chart | Gamma | |
| 113 | 2042 Apr 05 | Penumbral | 1.1080 | 118 | 2042 Sep 29 | Penumbral | −1.0261 | |
| 123 | 2043 Mar 25 | Total | 0.3849 | 128 | 2043 Sep 19 | Total | −0.3316 | |
| 133 | 2044 Mar 13 | Total | −0.3496 | 138 | 2044 Sep 07 | Total | 0.4318 | |
| 143 | 2045 Mar 03 | Penumbral | −1.0274 | 148 | 2045 Aug 27 | Penumbral | 1.2060 | |
This eclipse is a part ofSaros series 123, repeating every 18 years, 11 days, and containing 72 events. The series started with a penumbral lunar eclipse on August 16, 1087. It contains partial eclipses from May 2, 1520 through July 6, 1610; total eclipses from July 16, 1628 throughApril 4, 2061; and a second set of partial eclipses fromApril 16, 2079 through July 2, 2205. The series ends at member 72 as a penumbral eclipse on October 8, 2367.
The longest duration of totality was produced by member 37 at 105 minutes, 58 seconds on September 20, 1736. All eclipses in this series occur at the Moon’sdescending node of orbit.[6]
| Greatest | First | |||
|---|---|---|---|---|
| The greatest eclipse of the series occurred on1736 Sep 20, lasting 105 minutes, 58 seconds.[7] | Penumbral | Partial | Total | Central |
| 1087 Aug 16 | 1520 May 02 | 1628 Jul 16 | 1682 Aug 18 | |
| Last | ||||
| Central | Total | Partial | Penumbral | |
1953 Jan 29 | 2061 Apr 04 | 2205 Jul 02 | 2367 Oct 08 | |
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 41–62 occur between 1801 and 2200: | |||||
|---|---|---|---|---|---|
| 41 | 42 | 43 | |||
| 1808 Nov 03 | 1826 Nov 14 | 1844 Nov 24 | |||
| 44 | 45 | 46 | |||
| 1862 Dec 06 | 1880 Dec 16 | 1898 Dec 27 | |||
| 47 | 48 | 49 | |||
| 1917 Jan 08 | 1935 Jan 19 | 1953 Jan 29 | |||
 |  |  |  | |  |
| 50 | 51 | 52 | |||
| 1971 Feb 10 | 1989 Feb 20 | 2007 Mar 03 | |||
 |  |  |  |  |  |
| 53 | 54 | 55 | |||
| 2025 Mar 14 | 2043 Mar 25 | 2061 Apr 04 | |||
 |  | | | ||
| 56 | 57 | 58 | |||
| 2079 Apr 16 | 2097 Apr 26 | 2115 May 08 | |||
| 59 | 60 | 61 | |||
| 2133 May 19 | 2151 May 30 | 2169 Jun 09 | |||
| 62 | |||||
| 2187 Jun 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 | |||||
|---|---|---|---|---|---|
| 1811 Sep 02 (Saros 115) | 1840 Aug 13 (Saros 116) | 1869 Jul 23 (Saros 117) | |||
| 1898 Jul 03 (Saros 118) | 1927 Jun 15 (Saros 119) | 1956 May 24 (Saros 120) | |||
 |  |  |  | ||
| 1985 May 04 (Saros 121) | 2014 Apr 15 (Saros 122) | 2043 Mar 25 (Saros 123) | |||
 |  |  |  | | |
| 2072 Mar 04 (Saros 124) | 2101 Feb 14 (Saros 125) | 2130 Jan 24 (Saros 126) | |||
| 2159 Jan 04 (Saros 127) | 2187 Dec 15 (Saros 128) | ||||
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 total solar eclipses ofSolar Saros 130.
| March 20, 2034 | March 30, 2052 |
|---|---|
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