Penumbral eclipse | |||||||||
![]() The Moon's hourly motion shown right to left | |||||||||
Date | September 25, 1969 | ||||||||
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Gamma | 1.0656 | ||||||||
Magnitude | −0.0952 | ||||||||
Saros cycle | 146 (8 of 72) | ||||||||
Penumbral | 245 minutes, 9 seconds | ||||||||
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A penumbral lunar eclipse occurred at the Moon’s ascending node of orbit on Thursday, September 25, 1969, [1] with an umbral magnitude of −0.0952. 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 3.4 days after perigee (on September 22, 1969, at 11:45 UTC), the Moon's apparent diameter was larger. [2]
The eclipse was completely visible over Europe, Africa, and Asia, seen rising over eastern South America and west Africa and setting over northeast Asia and Australia. [3]
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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 | 0.90080 |
Umbral Magnitude | −0.09519 |
Gamma | 1.06558 |
Sun Right Ascension | 12h09m26.5s |
Sun Declination | -01°01'23.8" |
Sun Semi-Diameter | 15'57.2" |
Sun Equatorial Horizontal Parallax | 08.8" |
Moon Right Ascension | 00h07m25.1s |
Moon Declination | +01°56'11.3" |
Moon Semi-Diameter | 16'01.1" |
Moon Equatorial Horizontal Parallax | 0°58'47.2" |
ΔT | 39.9 s |
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. The first and last eclipse in this sequence is separated by one synodic month.
August 27 Ascending node (full moon) | September 11 Descending node (new moon) | September 25 Ascending node (full moon) |
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Penumbral lunar eclipse Lunar Saros 108 | Annular solar eclipse Solar Saros 134 | Penumbral lunar eclipse Lunar Saros 146 |
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 eclipse on August 27, 1969 occurs in the next lunar year eclipse set.
Lunar eclipse series sets from 1966 to 1969 | ||||||||
---|---|---|---|---|---|---|---|---|
Descending node | Ascending node | |||||||
Saros | Date Viewing | Type Chart | Gamma | Saros | Date Viewing | Type Chart | Gamma | |
111 | 1966 May 04 ![]() | Penumbral![]() | 1.0554 | 116 | 1966 Oct 29 ![]() | Penumbral![]() | −1.0600 | |
121 | 1967 Apr 24 ![]() | Total![]() | 0.2972 | 126 | 1967 Oct 18 ![]() | Total![]() | −0.3653 | |
131 | 1968 Apr 13 ![]() | Total![]() | −0.4173 | 136 | 1968 Oct 06 ![]() | Total![]() | 0.3605 | |
141 | 1969 Apr 02 ![]() | Penumbral![]() | −1.1765 | 146 | 1969 Sep 25 ![]() | Penumbral![]() | 1.0656 |
This eclipse is a part of Saros series 146, repeating every 18 years, 11 days, and containing 72 events. The series started with a penumbral lunar eclipse on July 11, 1843. It contains partial eclipses from October 17, 2005 through May 14, 2348; total eclipses from May 25, 2366 through November 16, 2654; and a second set of partial eclipses from November 27, 2672 through June 12, 2997. The series ends at member 72 as a penumbral eclipse on August 29, 3123.
The longest duration of totality will be produced by member 37 at 99 minutes, 22 seconds on August 8, 2492. All eclipses in this series occur at the Moon’s ascending node of orbit. [6]
Greatest | First | |||
---|---|---|---|---|
The greatest eclipse of the series will occur on 2492 Aug 08, lasting 99 minutes, 22 seconds. [7] | Penumbral | Partial | Total | Central |
1843 Jul 11 | 2005 Oct 17 ![]() | 2366 May 25 | 2438 Jul 07 | |
Last | ||||
Central | Total | Partial | Penumbral | |
2546 Sep 11 | 2654 Nov 16 | 2997 Jun 12 | 3123 Aug 29 |
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.
Series members 1–20 occur between 1843 and 2200: | |||||
---|---|---|---|---|---|
1 | 2 | 3 | |||
1843 Jul 11 | 1861 Jul 21 | 1879 Aug 02 | |||
4 | 5 | 6 | |||
1897 Aug 12 | 1915 Aug 24 | 1933 Sep 04 | |||
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7 | 8 | 9 | |||
1951 Sep 15 | 1969 Sep 25 | 1987 Oct 07 | |||
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10 | 11 | 12 | |||
2005 Oct 17 | 2023 Oct 28 | 2041 Nov 08 | |||
![]() | ![]() | ![]() | ![]() | ![]() | ![]() |
13 | 14 | 15 | |||
2059 Nov 19 | 2077 Nov 29 | 2095 Dec 11 | |||
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16 | 17 | 18 | |||
2113 Dec 22 | 2132 Jan 02 | 2150 Jan 13 | |||
19 | 20 | ||||
2168 Jan 24 | 2186 Feb 04 | ||||
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 153.
September 20, 1960 | October 2, 1978 |
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A penumbral lunar eclipse occurred at the Moon’s descending node of orbit on Sunday, September 6, 1998, with an umbral magnitude of −0.1544. 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 1.8 days before perigee, the Moon's apparent diameter was larger.
A partial lunar eclipse occurred at the Moon’s descending node of orbit on Saturday, June 25, 1983, with an umbral magnitude of 0.3348. A lunar eclipse occurs when the Moon moves into the Earth's shadow, causing the Moon to be darkened. A partial lunar eclipse occurs when one part of the Moon is in the Earth's umbra, while the other part is in 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 3.7 days before apogee, the Moon's apparent diameter was smaller.
A penumbral lunar eclipse occurred at the Moon’s ascending node of orbit on Wednesday, October 7, 1987, with an umbral magnitude of −0.0095. 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 3.1 days after perigee, the Moon's apparent diameter was larger.
A penumbral lunar eclipse occurred at the Moon’s descending node of orbit on Tuesday, April 14, 1987, with an umbral magnitude of −0.2312. 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 4.6 days before perigee, the Moon's apparent diameter was larger.
A total lunar eclipse will occur at the Moon’s ascending node of orbit on Monday, September 8, 2025, with an umbral magnitude of 1.3638. 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 about 2.6 days after perigee, the Moon's apparent diameter will be larger.
A penumbral lunar eclipse occurred at the Moon’s descending node of orbit on Tuesday, September 27, 1977, with an umbral magnitude of −0.1361. 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 6.25 days before apogee, the Moon's apparent diameter was smaller.
A total lunar eclipse occurred at the Moon’s descending node of orbit on Saturday, September 16, 1978, with an umbral magnitude of 1.3268. 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 about 2.4 days after perigee, the Moon's apparent diameter was larger.
A total lunar eclipse occurred at the Moon’s descending node of orbit on Thursday, September 6, 1979, with an umbral magnitude of 1.0936. 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 5 hours after perigee, the Moon's apparent diameter was larger.
A penumbral lunar eclipse occurred at the Moon’s descending node of orbit on Tuesday, August 26, 1980, with an umbral magnitude of −0.2531. 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 1.7 days before perigee, the Moon's apparent diameter was larger.
A partial lunar eclipse will occur at the Moon’s descending node of orbit on Thursday, September 28, 2034, with an umbral magnitude of 0.0155. A lunar eclipse occurs when the Moon moves into the Earth's shadow, causing the Moon to be darkened. A partial lunar eclipse occurs when one part of the Moon is in the Earth's umbra, while the other part is in 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 1.9 days before perigee, the Moon's apparent diameter will be larger.
A penumbral lunar eclipse occurred at the Moon’s ascending node of orbit on Friday, June 15, 1973, with an umbral magnitude of −0.6020. 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 only about 3 hours after apogee, the Moon's apparent diameter was smaller.
A penumbral lunar eclipse occurred at the Moon’s descending node of orbit on Saturday, November 6, 1976, with an umbral magnitude of −0.2593. 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 only about 8 hours after apogee, the Moon's apparent diameter was smaller.
A penumbral lunar eclipse occurred at the Moon’s ascending node of orbit on Wednesday, August 27, 1969, with an umbral magnitude of −0.9514. 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 2.25 days after perigee, the Moon's apparent diameter was larger.
A penumbral lunar eclipse occurred at the Moon’s descending node of orbit on Thursday, January 18, 1973, with an umbral magnitude of −0.1292. 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 2 days after perigee, the Moon's apparent diameter was larger.
A penumbral lunar eclipse occurred at the Moon’s ascending node of orbit on Sunday, July 15, 1973, with an umbral magnitude of −0.9581. 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 days after apogee, the Moon's apparent diameter was smaller.
A penumbral lunar eclipse occurred at the Moon’s descending node of orbit on Wednesday, April 2, 1969, with an umbral magnitude of −0.3046. 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 4.2 days before perigee, the Moon's apparent diameter was larger.
A penumbral lunar eclipse occurred at the Moon’s ascending node of orbit on Saturday, October 29, 1966, with an umbral magnitude of −0.1249. 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 4 days after apogee, the Moon's apparent diameter was smaller.
A total lunar eclipse will occur at the Moon’s ascending node of orbit on Saturday, September 19, 2043, with an umbral magnitude of 1.2575. 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 about 2.8 days before perigee, the Moon's apparent diameter will be larger.
A penumbral lunar eclipse occurred at the Moon’s ascending node of orbit on Saturday, September 15, 1951, with an umbral magnitude of −0.1927. 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 perigee, the Moon's apparent diameter was larger.
A penumbral lunar eclipse occurred at the Moon’s ascending node of orbit on Monday, September 4, 1933, with an umbral magnitude of −0.7336. 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 3.9 days after perigee, the Moon's apparent diameter was larger.