# September 2044 lunar eclipse

A total lunar eclipse will occur at the Moon’s ascending node of orbit on Wednesday, September 7, 2044, with an umbral magnitude of 1.0456. 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 5.8 days after apogee (on September 1, 2044, at 16:30 UTC), the Moon's apparent diameter will be smaller.
This lunar eclipse is the last of a tetrad, with four total lunar eclipses in series, the others being on March 25, 2043; September 19, 2043; and March 13, 2044.
This eclipse will also be the first total eclipse of Lunar Saros 138.

## Visibility

The eclipse will be completely visible over eastern Australia, northeast Asia, and northwestern North America, seen rising over much of Asia and western Australia and setting over much of North and South America.

## Eclipse details

Shown below is a table displaying details about this particular solar eclipse. It describes various parameters pertaining to this eclipse.
September 7, 2044 Lunar Eclipse Parameters :
| Parameter | Value |
| Penumbral Magnitude | 2.08792 |
| Umbral Magnitude | 1.04756 |
| Gamma | 0.43184 |
| Sun Right Ascension | 11h06m33.5s |
| Sun Declination | +05°43'12.4" |
| Sun Semi-Diameter | 15'52.4" |
| Sun Equatorial Horizontal Parallax | 08.7" |
| Moon Right Ascension | 23h05m47.2s |
| Moon Declination | -05°21'56.9" |
| Moon Semi-Diameter | 15'15.4" |
| Moon Equatorial Horizontal Parallax | 0°55'59.6" |
| ΔT | 81.8 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 August–September 2044 :
| August 23 Descending node (new moon) | September 7 Ascending node (full moon) |
| Total solar eclipse Solar Saros 126 | Total lunar eclipse Lunar Saros 138 |

## Related eclipses
### Eclipses in 2044

* An annular solar eclipse on February 28.
* A total lunar eclipse on March 13.
* A total solar eclipse on August 23.
* A total lunar eclipse on September 7.

### Metonic

* Preceded by: Lunar eclipse of November 18, 2040
* Followed by: Lunar eclipse of June 26, 2048

### Tzolkinex

* Preceded by: Lunar eclipse of July 27, 2037
* Followed by: Lunar eclipse of October 19, 2051

### Half-Saros

* Preceded by: Solar eclipse of September 2, 2035
* Followed by: Solar eclipse of September 12, 2053

### Tritos

* Preceded by: Lunar eclipse of October 8, 2033
* Followed by: Lunar eclipse of August 7, 2055

### Lunar Saros 138

* Preceded by: Lunar eclipse of August 28, 2026
* Followed by: Lunar eclipse of September 18, 2062

### Inex

* Preceded by: Lunar eclipse of September 28, 2015
* Followed by: Lunar eclipse of August 17, 2073

### Triad

* Preceded by: Lunar eclipse of November 7, 1957
* Followed by: Lunar eclipse of July 10, 2131

### Lunar eclipses of 2042–2045

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 October 28, 2042 occurs in the previous lunar year eclipse set.
Lunar eclipse series sets from 2042 to 2045 :
| Descending node | Descending node | Descending node | Descending node | Ascending node | Ascending node | Ascending 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 |

### Metonic series

The Metonic cycle repeats nearly exactly every 19 years and represents a Saros cycle plus one lunar year. Because it occurs on the same calendar date, the Earth's shadow will in nearly the same location relative to the background stars.
| 2006 Mar 14.99 - penumbral (113) 2025 Mar 14.29 - total (123) 2044 Mar 13.82 - total (133) 2063 Mar 14.67- partial (143) | 2006 Sep 07.79 - partial (118) 2025 Sep 07.76 - total (128) 2044 Sep 07.47 - partial (138) 2063 Sep 07.86 - penumbral (148) |

### Saros 138

This eclipse is a part of Saros series 138, repeating every 18 years, 11 days, and containing 82 events. The series started with a penumbral lunar eclipse on October 15, 1521. It contains partial eclipses from June 24, 1918 through August 28, 2026; total eclipses from September 7, 2044 through June 8, 2495; and a second set of partial eclipses from June 19, 2513 through August 13, 2603. The series ends at member 82 as a penumbral eclipse on March 30, 2982.
The longest duration of totality will be produced by member 48 at 105 minutes, 24 seconds on March 24, 2369. 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 2369 Mar 24, lasting 105 minutes, 24 seconds. | Penumbral | Partial | Total | Central |
| The greatest eclipse of the series will occur on 2369 Mar 24, lasting 105 minutes, 24 seconds. | 1521 Oct 15 | 1918 Jun 24 | 2044 Sep 07 | 2116 Oct 21 |
| Last ||||
| The greatest eclipse of the series will occur on 2369 Mar 24, lasting 105 minutes, 24 seconds. | Central | Total | Partial | Penumbral |
| The greatest eclipse of the series will occur on 2369 Mar 24, lasting 105 minutes, 24 seconds. | 2441 May 06 | 2495 Jun 08 | 2603 Aug 13 | 2982 Mar 30 |
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 17–38 occur between 1801 and 2200: :
| 17 | 17 | 18 | 18 | 19 | 19 |
| 1810 Apr 19 | 1810 Apr 19 | 1828 Apr 29 | 1828 Apr 29 | 1846 May 11 | 1846 May 11 |
| 20 | 20 | 21 | 21 | 22 | 22 |
| 1864 May 21 | 1864 May 21 | 1882 Jun 01 | 1882 Jun 01 | 1900 Jun 13 | 1900 Jun 13 |
| 23 | 23 | 24 | 24 | 25 | 25 |
| 1918 Jun 24 | 1918 Jun 24 | 1936 Jul 04 | 1936 Jul 04 | 1954 Jul 16 | 1954 Jul 16 |
| 26 | 26 | 27 | 27 | 28 | 28 |
| 1972 Jul 26 | 1972 Jul 26 | 1990 Aug 06 | 1990 Aug 06 | 2008 Aug 16 | 2008 Aug 16 |
| 29 | 29 | 30 | 30 | 31 | 31 |
| 2026 Aug 28 | 2026 Aug 28 | 2044 Sep 07 | 2044 Sep 07 | 2062 Sep 18 | 2062 Sep 18 |
| 32 | 32 | 33 | 33 | 34 | 34 |
| 2080 Sep 29 | 2080 Sep 29 | 2098 Oct 10 | 2098 Oct 10 | 2116 Oct 21 | 2116 Oct 21 |
| 35 | 35 | 36 | 36 | 37 | 37 |
| 2134 Nov 02 | 2134 Nov 02 | 2152 Nov 12 | 2152 Nov 12 | 2170 Nov 23 | 2170 Nov 23 |
| 38 ||
| 2188 Dec 04 ||

### 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 2200 :
| 1804 Jul 22 (Saros 116) | 1804 Jul 22 (Saros 116) | 1815 Jun 21 (Saros 117) | 1815 Jun 21 (Saros 117) | 1826 May 21 (Saros 118) | 1826 May 21 (Saros 118) | 1837 Apr 20 (Saros 119) | 1837 Apr 20 (Saros 119) | 1848 Mar 19 (Saros 120) | 1848 Mar 19 (Saros 120) |
| 1859 Feb 17 (Saros 121) | 1859 Feb 17 (Saros 121) | 1870 Jan 17 (Saros 122) | 1870 Jan 17 (Saros 122) | 1880 Dec 16 (Saros 123) | 1880 Dec 16 (Saros 123) | 1891 Nov 16 (Saros 124) | 1891 Nov 16 (Saros 124) | 1902 Oct 17 (Saros 125) | 1902 Oct 17 (Saros 125) |
| 1913 Sep 15 (Saros 126) | 1913 Sep 15 (Saros 126) | 1924 Aug 14 (Saros 127) | 1924 Aug 14 (Saros 127) | 1935 Jul 16 (Saros 128) | 1935 Jul 16 (Saros 128) | 1946 Jun 14 (Saros 129) | 1946 Jun 14 (Saros 129) | 1957 May 13 (Saros 130) | 1957 May 13 (Saros 130) |
| 1968 Apr 13 (Saros 131) | 1968 Apr 13 (Saros 131) | 1979 Mar 13 (Saros 132) | 1979 Mar 13 (Saros 132) | 1990 Feb 09 (Saros 133) | 1990 Feb 09 (Saros 133) | 2001 Jan 09 (Saros 134) | 2001 Jan 09 (Saros 134) | 2011 Dec 10 (Saros 135) | 2011 Dec 10 (Saros 135) |
| 2022 Nov 08 (Saros 136) | 2022 Nov 08 (Saros 136) | 2033 Oct 08 (Saros 137) | 2033 Oct 08 (Saros 137) | 2044 Sep 07 (Saros 138) | 2044 Sep 07 (Saros 138) | 2055 Aug 07 (Saros 139) | 2055 Aug 07 (Saros 139) | 2066 Jul 07 (Saros 140) | 2066 Jul 07 (Saros 140) |
| 2077 Jun 06 (Saros 141) | 2077 Jun 06 (Saros 141) | 2088 May 05 (Saros 142) | 2088 May 05 (Saros 142) | 2099 Apr 05 (Saros 143) | 2099 Apr 05 (Saros 143) | 2110 Mar 06 (Saros 144) | 2110 Mar 06 (Saros 144) | 2121 Feb 02 (Saros 145) | 2121 Feb 02 (Saros 145) |
| 2132 Jan 02 (Saros 146) | 2132 Jan 02 (Saros 146) | 2142 Dec 03 (Saros 147) | 2142 Dec 03 (Saros 147) | 2153 Nov 01 (Saros 148) | 2153 Nov 01 (Saros 148) | 2164 Sep 30 (Saros 149) | 2164 Sep 30 (Saros 149) | 2175 Aug 31 (Saros 150) | 2175 Aug 31 (Saros 150) |
| 2186 Jul 31 (Saros 151) | 2186 Jul 31 (Saros 151) | 2197 Jun 29 (Saros 152) | 2197 Jun 29 (Saros 152) |

### 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 :
| 1813 Feb 15 (Saros 130) | 1813 Feb 15 (Saros 130) | 1842 Jan 26 (Saros 131) | 1842 Jan 26 (Saros 131) | 1871 Jan 06 (Saros 132) | 1871 Jan 06 (Saros 132) |
| 1899 Dec 17 (Saros 133) | 1899 Dec 17 (Saros 133) | 1928 Nov 27 (Saros 134) | 1928 Nov 27 (Saros 134) | 1957 Nov 07 (Saros 135) | 1957 Nov 07 (Saros 135) |
| 1986 Oct 17 (Saros 136) | 1986 Oct 17 (Saros 136) | 2015 Sep 28 (Saros 137) | 2015 Sep 28 (Saros 137) | 2044 Sep 07 (Saros 138) | 2044 Sep 07 (Saros 138) |
| 2073 Aug 17 (Saros 139) | 2073 Aug 17 (Saros 139) | 2102 Jul 30 (Saros 140) | 2102 Jul 30 (Saros 140) | 2131 Jul 10 (Saros 141) | 2131 Jul 10 (Saros 141) |
| 2160 Jun 18 (Saros 142) | 2160 Jun 18 (Saros 142) | 2189 May 29 (Saros 143) | 2189 May 29 (Saros 143) |

### 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 total solar eclipses of Solar Saros 145.
| September 2, 2035 | September 12, 2053 |