# March 1998 lunar eclipse

A penumbral lunar eclipse occurred at the Moon’s ascending node of orbit on Friday, March 13, 1998, with an umbral magnitude of −0.3824. 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 2.3 days before apogee (on March 15, 1998, at 12:40 UTC), the Moon's apparent diameter was smaller.

## Visibility

The eclipse was completely visible over much of North America, South America, west Africa and western Europe, seen rising over northwestern North America and the central Pacific Ocean and setting over much of Europe, much of Africa, and west and central Asia.

## Eclipse details

Shown below is a table displaying details about this particular solar eclipse. It describes various parameters pertaining to this eclipse.
March 13, 1998 Lunar Eclipse Parameters :
| Parameter | Value |
| Penumbral Magnitude | 0.70862 |
| Umbral Magnitude | −0.38237 |
| Gamma | 1.19644 |
| Sun Right Ascension | 23h32m02.0s |
| Sun Declination | -03°01'14.6" |
| Sun Semi-Diameter | 16'05.6" |
| Sun Equatorial Horizontal Parallax | 08.8" |
| Moon Right Ascension | 11h33m20.6s |
| Moon Declination | +04°02'58.3" |
| Moon Semi-Diameter | 14'45.1" |
| Moon Equatorial Horizontal Parallax | 0°54'08.2" |
| ΔT | 63.0 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 1998 :
| February 26 Descending node (new moon) | March 13 Ascending node (full moon) |
| Total solar eclipse Solar Saros 130 | Penumbral lunar eclipse Lunar Saros 142 |

## Related eclipses
### Eclipses in 1998

* A total solar eclipse on February 26.
* A penumbral lunar eclipse on March 13.
* A penumbral lunar eclipse on August 8.
* An annular solar eclipse on August 22.
* A penumbral lunar eclipse on September 6.

### Metonic

* Preceded by: Lunar eclipse of May 25, 1994
* Followed by: Lunar eclipse of December 30, 2001

### Tzolkinex

* Preceded by: Lunar eclipse of January 30, 1991
* Followed by: Lunar eclipse of April 24, 2005

### Half-Saros

* Preceded by: Solar eclipse of March 7, 1989
* Followed by: Solar eclipse of March 19, 2007

### Tritos

* Preceded by: Lunar eclipse of April 14, 1987
* Followed by: Lunar eclipse of February 9, 2009

### Lunar Saros 142

* Preceded by: Lunar eclipse of March 1, 1980
* Followed by: Lunar eclipse of March 23, 2016

### Inex

* Preceded by: Lunar eclipse of April 2, 1969
* Followed by: Lunar eclipse of February 20, 2027

### Triad

* Preceded by: Lunar eclipse of May 13, 1911
* Followed by: Lunar eclipse of January 10, 2085

### Lunar eclipses of 1995–1998

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 August 8, 1998 occurs in the next lunar year eclipse set.
Lunar eclipse series sets from 1995 to 1998 :
| 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 | 1995 Apr 15 | Partial | −0.9594 | 117 | 1995 Oct 08 | Penumbral | 1.1179 |
| 122 | 1996 Apr 04 | Total | −0.2534 | 127 | 1996 Sep 27 | Total | 0.3426 |
| 132 | 1997 Mar 24 | Partial | 0.4899 | 137 | 1997 Sep 16 | Total | −0.3768 |
| 142 | 1998 Mar 13 | Penumbral | 1.1964 | 147 | 1998 Sep 06 | Penumbral | −1.1058 |

### 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 2183 :
| 1801 Sep 22 (Saros 124) | 1801 Sep 22 (Saros 124) | 1812 Aug 22 (Saros 125) | 1812 Aug 22 (Saros 125) | 1823 Jul 23 (Saros 126) | 1823 Jul 23 (Saros 126) | 1834 Jun 21 (Saros 127) | 1834 Jun 21 (Saros 127) | 1845 May 21 (Saros 128) | 1845 May 21 (Saros 128) |
| 1856 Apr 20 (Saros 129) | 1856 Apr 20 (Saros 129) | 1867 Mar 20 (Saros 130) | 1867 Mar 20 (Saros 130) | 1878 Feb 17 (Saros 131) | 1878 Feb 17 (Saros 131) | 1889 Jan 17 (Saros 132) | 1889 Jan 17 (Saros 132) | 1899 Dec 17 (Saros 133) | 1899 Dec 17 (Saros 133) |
| 1910 Nov 17 (Saros 134) | 1910 Nov 17 (Saros 134) | 1921 Oct 16 (Saros 135) | 1921 Oct 16 (Saros 135) | 1932 Sep 14 (Saros 136) | 1932 Sep 14 (Saros 136) | 1943 Aug 15 (Saros 137) | 1943 Aug 15 (Saros 137) | 1954 Jul 16 (Saros 138) | 1954 Jul 16 (Saros 138) |
| 1965 Jun 14 (Saros 139) | 1965 Jun 14 (Saros 139) | 1976 May 13 (Saros 140) | 1976 May 13 (Saros 140) | 1987 Apr 14 (Saros 141) | 1987 Apr 14 (Saros 141) | 1998 Mar 13 (Saros 142) | 1998 Mar 13 (Saros 142) | 2009 Feb 09 (Saros 143) | 2009 Feb 09 (Saros 143) |
| 2020 Jan 10 (Saros 144) | 2020 Jan 10 (Saros 144) | 2030 Dec 09 (Saros 145) | 2030 Dec 09 (Saros 145) | 2041 Nov 08 (Saros 146) | 2041 Nov 08 (Saros 146) | 2052 Oct 08 (Saros 147) | 2052 Oct 08 (Saros 147) | 2063 Sep 07 (Saros 148) | 2063 Sep 07 (Saros 148) |
| 2074 Aug 07 (Saros 149) | 2074 Aug 07 (Saros 149) | 2085 Jul 07 (Saros 150) | 2085 Jul 07 (Saros 150) | 2096 Jun 06 (Saros 151) | 2096 Jun 06 (Saros 151) | 2107 May 07 (Saros 152) | 2107 May 07 (Saros 152) | | |
| | | | | 2151 Jan 02 (Saros 156) | 2151 Jan 02 (Saros 156) | | | 2172 Oct 31 (Saros 158) | 2172 Oct 31 (Saros 158) |
| 2183 Oct 01 (Saros 159) ||

### 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 :
| 1824 Jul 11 (Saros 136) | 1824 Jul 11 (Saros 136) | 1853 Jun 21 (Saros 137) | 1853 Jun 21 (Saros 137) | 1882 Jun 01 (Saros 138) | 1882 Jun 01 (Saros 138) |
| 1911 May 13 (Saros 139) | 1911 May 13 (Saros 139) | 1940 Apr 22 (Saros 140) | 1940 Apr 22 (Saros 140) | 1969 Apr 02 (Saros 141) | 1969 Apr 02 (Saros 141) |
| 1998 Mar 13 (Saros 142) | 1998 Mar 13 (Saros 142) | 2027 Feb 20 (Saros 143) | 2027 Feb 20 (Saros 143) | 2056 Feb 01 (Saros 144) | 2056 Feb 01 (Saros 144) |
| 2085 Jan 10 (Saros 145) | 2085 Jan 10 (Saros 145) | 2113 Dec 22 (Saros 146) | 2113 Dec 22 (Saros 146) | 2142 Dec 03 (Saros 147) | 2142 Dec 03 (Saros 147) |
| 2171 Nov 12 (Saros 148) | 2171 Nov 12 (Saros 148) | 2200 Oct 23 (Saros 149) | 2200 Oct 23 (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.
| March 7, 1989 | March 19, 2007 |