March 1980 lunar eclipse
| Penumbral eclipse | |||||||||
 The Moon's hourly motion shown right to left | |||||||||
| Date | March 1, 1980 | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| Gamma | 1.2270 | ||||||||
| Magnitude | −0.4404 | ||||||||
| Saros cycle | 142 (16 of 74) | ||||||||
| Penumbral | 238 minutes, 29 seconds | ||||||||
| |||||||||
A penumbral lunar eclipse occurred at the Moon’s ascending node of orbit on Saturday, March 1, 1980,[1] with an umbral magnitude of −0.4404. 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 1.6 days before apogee (on March 3, 1980, at 10:50 UTC), the Moon's apparent diameter was smaller.[2]
Visibility
[edit]The eclipse was completely visible over Africa, Europe, and much of Asia, seen rising over northeastern North America and eastern South America and setting over northeast Asia and Australia.[3]
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Eclipse details
[edit]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 | 0.65455 |
| Umbral Magnitude | −0.44043 |
| Gamma | 1.22701 |
| Sun Right Ascension | 22h51m28.5s |
| Sun Declination | -07°16'40.3" |
| Sun Semi-Diameter | 16'08.2" |
| Sun Equatorial Horizontal Parallax | 08.9" |
| Moon Right Ascension | 10h52m45.6s |
| Moon Declination | +08°20'13.6" |
| Moon Semi-Diameter | 14'44.2" |
| Moon Equatorial Horizontal Parallax | 0°54'05.2" |
| ΔT | 50.7 s |
Eclipse season
[edit]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.
| February 16 Descending node (new moon) |
March 1 Ascending node (full moon) |
|---|---|
 |
|
| Total solar eclipse Solar Saros 130 |
Penumbral lunar eclipse Lunar Saros 142 |
Related eclipses
[edit]Eclipses in 1980
[edit]- A total solar eclipse on February 16.
- A penumbral lunar eclipse on March 1.
- A penumbral lunar eclipse on July 27.
- An annular solar eclipse on August 10.
- A penumbral lunar eclipse on August 26.
Metonic
[edit]- Preceded by: Lunar eclipse of May 13, 1976
- Followed by: Lunar eclipse of December 20, 1983
Tzolkinex
[edit]- Preceded by: Lunar eclipse of January 18, 1973
- Followed by: Lunar eclipse of April 14, 1987
Half-Saros
[edit]- Preceded by: Solar eclipse of February 25, 1971
- Followed by: Solar eclipse of March 7, 1989
Tritos
[edit]- Preceded by: Lunar eclipse of April 2, 1969
- Followed by: Lunar eclipse of January 30, 1991
Lunar Saros 142
[edit]- Preceded by: Lunar eclipse of February 19, 1962
- Followed by: Lunar eclipse of March 13, 1998
Inex
[edit]- Preceded by: Lunar eclipse of March 23, 1951
- Followed by: Lunar eclipse of February 9, 2009
Triad
[edit]- Preceded by: Lunar eclipse of April 30, 1893
- Followed by: Lunar eclipse of December 31, 2066
Lunar eclipses of 1977–1980
[edit]| Lunar eclipse series sets from 1977–1980 | ||||||||
|---|---|---|---|---|---|---|---|---|
| Ascending node | Descending node | |||||||
| Saros | Date viewing |
Type chart |
Gamma | Saros | Date viewing |
Type chart |
Gamma | |
| 112 | 1977 Apr 04
|
Partial
|
−0.91483 | 117 | 1977 Sep 27
|
Penumbral
|
1.07682 | |
| 122 | 1978 Mar 24
|
Total
|
−0.21402 | 127 | 1978 Sep 16
|
Total
|
0.29510 | |
| 132 | 1979 Mar 13
|
Partial
|
0.52537 | 137 | 1979 Sep 06
|
Total
|
−0.43050 | |
| 142 | 1980 Mar 01
|
Penumbral
|
1.22701 | 147 | 1980 Aug 26
|
Penumbral
|
−1.16082 | |
| Last set | 1976 May 13 | Last set | 1976 Nov 06 | |||||
| Next set | 1981 Jan 20 | Next set | 1980 Jul 27 | |||||
Half-Saros cycle
[edit]A 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 149.
| February 25, 1971 | March 7, 1989 |
|---|---|
|
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See also
[edit]Notes
[edit]- ^ "March 1–2, 1980 Penumbral Lunar Eclipse". timeanddate. Retrieved 4 January 2025.
- ^ "Moon Distances for London, United Kingdom, England". timeanddate. Retrieved 4 January 2025.
- ^ "Penumbral Lunar Eclipse of 1980 Mar 01" (PDF). NASA. Retrieved 4 January 2025.
- ^ "Penumbral Lunar Eclipse of 1980 Mar 01". EclipseWise.com. Retrieved 4 January 2025.
- ^ Mathematical Astronomy Morsels, Jean Meeus, p.110, Chapter 18, The half-saros
External links
[edit]- 1980 Mar 01 chart Eclipse Predictions by Fred Espenak, NASA/GSFC
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