# March 1980 lunar eclipse

A penumbral lunar eclipse occurred at the Moon’s ascending node of orbit on Saturday, March 1, 1980, 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.

## Visibility

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.

## Eclipse details

Shown below is a table displaying details about this particular solar eclipse. It describes various parameters pertaining to this eclipse.
March 1, 1980 Lunar Eclipse Parameters :
| 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

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.
Eclipse season of February–March 1980 :
| 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
### Eclipses in 1980

* 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

* Preceded by: Lunar eclipse of May 13, 1976
* Followed by: Lunar eclipse of December 20, 1983

### Tzolkinex

* Preceded by: Lunar eclipse of January 18, 1973
* Followed by: Lunar eclipse of April 14, 1987

### Half-Saros

* Preceded by: Solar eclipse of February 25, 1971
* Followed by: Solar eclipse of March 7, 1989

### Tritos

* Preceded by: Lunar eclipse of April 2, 1969
* Followed by: Lunar eclipse of January 30, 1991

### Lunar Saros 142

* Preceded by: Lunar eclipse of February 19, 1962
* Followed by: Lunar eclipse of March 13, 1998

### Inex

* Preceded by: Lunar eclipse of March 23, 1951
* Followed by: Lunar eclipse of February 9, 2009

### Triad

* Preceded by: Lunar eclipse of April 30, 1893
* Followed by: Lunar eclipse of December 31, 2066

### Lunar eclipses of 1977–1980

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.
The penumbral lunar eclipse on July 27, 1980 occurs in the next lunar year eclipse set.
Lunar eclipse series sets from 1977 to 1980 :
| Ascending node | Ascending node | Ascending node | Ascending node | Descending node | Descending node | Descending node | Descending node |
| Saros | Date Viewing | Type Chart | Gamma | Saros | Date Viewing | Type Chart | Gamma |
| 112 | 1977 Apr 04 | Partial | −0.9148 | 117 | 1977 Sep 27 | Penumbral | 1.0768 |
| 122 | 1978 Mar 24 | Total | −0.2140 | 127 | 1978 Sep 16 | Total | 0.2951 |
| 132 | 1979 Mar 13 | Partial | 0.5254 | 137 | 1979 Sep 06 | Total | −0.4305 |
| 142 | 1980 Mar 01 | Penumbral | 1.2270 | 147 | 1980 Aug 26 | Penumbral | −1.1608 |

### Saros 142

This eclipse is a part of Saros series 142, repeating every 18 years, 11 days, and containing 73 events. The series started with a penumbral lunar eclipse on September 19, 1709. It contains partial eclipses from May 5, 2088 through July 10, 2196; total eclipses from July 22, 2214 through April 21, 2665; and a second set of partial eclipses from May 3, 2683 through July 29, 2827. The series ends at member 73 as a penumbral eclipse on November 17, 3007.
The longest duration of totality will be produced by member 34 at 103 minutes, 54 seconds on September 15, 2304. All eclipses in this series occur at the Moon’s ascending node of orbit.
| Greatest | First | First | First | First |
| The greatest eclipse of the series will occur on 2304 Sep 15, lasting 103 minutes, 54 seconds. | Penumbral | Partial | Total | Central |
| The greatest eclipse of the series will occur on 2304 Sep 15, lasting 103 minutes, 54 seconds. | 1709 Sep 19 | 2088 May 05 | 2214 Jul 22 | 2250 Aug 13 |
| Last ||||
| The greatest eclipse of the series will occur on 2304 Sep 15, lasting 103 minutes, 54 seconds. | Central | Total | Partial | Penumbral |
| The greatest eclipse of the series will occur on 2304 Sep 15, lasting 103 minutes, 54 seconds. | 2448 Dec 10 | 2665 Apr 21 | 2827 Jul 29 | 3007 Nov 17 |
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 7–28 occur between 1801 and 2200: :
| 7 | 7 | 8 | 8 | 9 | 9 |
| 1817 Nov 23 | 1817 Nov 23 | 1835 Dec 05 | 1835 Dec 05 | 1853 Dec 15 | 1853 Dec 15 |
| 10 | 10 | 11 | 11 | 12 | 12 |
| 1871 Dec 26 | 1871 Dec 26 | 1890 Jan 06 | 1890 Jan 06 | 1908 Jan 18 | 1908 Jan 18 |
| 13 | 13 | 14 | 14 | 15 | 15 |
| 1926 Jan 28 | 1926 Jan 28 | 1944 Feb 09 | 1944 Feb 09 | 1962 Feb 19 | 1962 Feb 19 |
| 16 | 16 | 17 | 17 | 18 | 18 |
| 1980 Mar 01 | 1980 Mar 01 | 1998 Mar 13 | 1998 Mar 13 | 2016 Mar 23 | 2016 Mar 23 |
| 19 | 19 | 20 | 20 | 21 | 21 |
| 2034 Apr 03 | 2034 Apr 03 | 2052 Apr 14 | 2052 Apr 14 | 2070 Apr 25 | 2070 Apr 25 |
| 22 | 22 | 23 | 23 | 24 | 24 |
| 2088 May 05 | 2088 May 05 | 2106 May 17 | 2106 May 17 | 2124 May 28 | 2124 May 28 |
| 25 | 25 | 26 | 26 | 27 | 27 |
| 2142 Jun 08 | 2142 Jun 08 | 2160 Jun 18 | 2160 Jun 18 | 2178 Jun 30 | 2178 Jun 30 |
| 28 ||
| 2196 Jul 10 ||

### 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.
Series members between 1801 and 2132 :
| 1805 Jul 11 (Saros 126) | 1805 Jul 11 (Saros 126) | 1816 Jun 10 (Saros 127) | 1816 Jun 10 (Saros 127) | 1827 May 11 (Saros 128) | 1827 May 11 (Saros 128) | 1838 Apr 10 (Saros 129) | 1838 Apr 10 (Saros 129) | 1849 Mar 09 (Saros 130) | 1849 Mar 09 (Saros 130) |
| 1860 Feb 07 (Saros 131) | 1860 Feb 07 (Saros 131) | 1871 Jan 06 (Saros 132) | 1871 Jan 06 (Saros 132) | 1881 Dec 05 (Saros 133) | 1881 Dec 05 (Saros 133) | 1892 Nov 04 (Saros 134) | 1892 Nov 04 (Saros 134) | 1903 Oct 06 (Saros 135) | 1903 Oct 06 (Saros 135) |
| 1914 Sep 04 (Saros 136) | 1914 Sep 04 (Saros 136) | 1925 Aug 04 (Saros 137) | 1925 Aug 04 (Saros 137) | 1936 Jul 04 (Saros 138) | 1936 Jul 04 (Saros 138) | 1947 Jun 03 (Saros 139) | 1947 Jun 03 (Saros 139) | 1958 May 03 (Saros 140) | 1958 May 03 (Saros 140) |
| 1969 Apr 02 (Saros 141) | 1969 Apr 02 (Saros 141) | 1980 Mar 01 (Saros 142) | 1980 Mar 01 (Saros 142) | 1991 Jan 30 (Saros 143) | 1991 Jan 30 (Saros 143) | 2001 Dec 30 (Saros 144) | 2001 Dec 30 (Saros 144) | 2012 Nov 28 (Saros 145) | 2012 Nov 28 (Saros 145) |
| 2023 Oct 28 (Saros 146) | 2023 Oct 28 (Saros 146) | 2034 Sep 28 (Saros 147) | 2034 Sep 28 (Saros 147) | 2045 Aug 27 (Saros 148) | 2045 Aug 27 (Saros 148) | 2056 Jul 26 (Saros 149) | 2056 Jul 26 (Saros 149) | 2067 Jun 27 (Saros 150) | 2067 Jun 27 (Saros 150) |
| 2132 Dec 22 (Saros 156) ||

### 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.
Series members between 1801 and 2200 :
| 1806 Jun 30 (Saros 136) | 1806 Jun 30 (Saros 136) | 1835 Jun 10 (Saros 137) | 1835 Jun 10 (Saros 137) | 1864 May 21 (Saros 138) | 1864 May 21 (Saros 138) |
| 1893 Apr 30 (Saros 139) | 1893 Apr 30 (Saros 139) | 1922 Apr 11 (Saros 140) | 1922 Apr 11 (Saros 140) | 1951 Mar 23 (Saros 141) | 1951 Mar 23 (Saros 141) |
| 1980 Mar 01 (Saros 142) | 1980 Mar 01 (Saros 142) | 2009 Feb 09 (Saros 143) | 2009 Feb 09 (Saros 143) | 2038 Jan 21 (Saros 144) | 2038 Jan 21 (Saros 144) |
| 2066 Dec 31 (Saros 145) | 2066 Dec 31 (Saros 145) | 2095 Dec 11 (Saros 146) | 2095 Dec 11 (Saros 146) | 2124 Nov 21 (Saros 147) | 2124 Nov 21 (Saros 147) |
| 2153 Nov 01 (Saros 148) | 2153 Nov 01 (Saros 148) | 2182 Oct 11 (Saros 149) | 2182 Oct 11 (Saros 149) |

### Half-Saros cycle

A lunar eclipse will be preceded and followed by solar eclipses by 9 years and 5.5 days (a half saros). This lunar eclipse is related to two partial solar eclipses of Solar Saros 149.
| February 25, 1971 | March 7, 1989 |