September 2090 lunar eclipse
| Total eclipse | |||||||||||||||||
 The Moon's hourly motion shown right to left | |||||||||||||||||
| Date | September 8, 2090 | ||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Gamma | 0.4257 | ||||||||||||||||
| Magnitude | 1.0387 | ||||||||||||||||
| Saros cycle | 129 (42 of 71) | ||||||||||||||||
| Totality | 31 minutes, 51 seconds | ||||||||||||||||
| Partiality | 213 minutes, 5 seconds | ||||||||||||||||
| Penumbral | 361 minutes, 59 seconds | ||||||||||||||||
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A total lunar eclipse will occur at the Moon’s descending node of orbit on Friday, September 8, 2090,[1] with an umbral magnitude of 1.0387. 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 12 hours before apogee (on September 9, 2090, at 11:00 UTC), the Moon's apparent diameter will be smaller.[2]
This lunar eclipse will be the second of a tetrad, with four total lunar eclipses in series, the others being on March 15, 2090; March 5, 2091; and August 29, 2091.
This will the final total lunar eclipse of Lunar Saros 129.
Visibility
[edit]The eclipse will be completely visible over Africa, Europe, and the Middle East, seen rising over North and South America and setting over central, south Asia, and east 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 | 2.11781 |
| Umbral Magnitude | 1.03874 |
| Gamma | 0.42572 |
| Sun Right Ascension | 11h11m25.3s |
| Sun Declination | +05°12'29.2" |
| Sun Semi-Diameter | 15'52.5" |
| Sun Equatorial Horizontal Parallax | 08.7" |
| Moon Right Ascension | 23h10m58.1s |
| Moon Declination | -04°50'31.3" |
| Moon Semi-Diameter | 14'42.7" |
| Moon Equatorial Horizontal Parallax | 0°53'59.5" |
| ΔT | 117.7 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.
| September 8 Descending node (full moon) |
September 23 Ascending node (new moon) |
|---|---|
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| Total lunar eclipse Lunar Saros 129 |
Total solar eclipse Solar Saros 155 |
Related eclipses
[edit]Eclipses in 2090
[edit]- A total lunar eclipse on March 15.
- A partial solar eclipse on March 31.
- A total lunar eclipse on September 8.
- A total solar eclipse on September 23.
Metonic
[edit]- Preceded by: Lunar eclipse of November 20, 2086
- Followed by: Lunar eclipse of June 28, 2094
Tzolkinex
[edit]- Preceded by: Lunar eclipse of July 29, 2083
- Followed by: Lunar eclipse of October 21, 2097
Half-Saros
[edit]- Preceded by: Solar eclipse of September 3, 2081
- Followed by: Solar eclipse of September 14, 2099
Tritos
[edit]- Preceded by: Lunar eclipse of October 10, 2079
- Followed by: Lunar eclipse of August 9, 2101
Lunar Saros 129
[edit]- Preceded by: Lunar eclipse of August 28, 2072
- Followed by: Lunar eclipse of September 20, 2108
Inex
[edit]- Preceded by: Lunar eclipse of September 29, 2061
- Followed by: Lunar eclipse of August 20, 2119
Triad
[edit]- Preceded by: Lunar eclipse of November 9, 2003
- Followed by: Lunar eclipse of July 11, 2177
Lunar eclipses of 2089–2092
[edit]![[icon]](/wiki/File:Wiki_letter_w_cropped.svg){kind=small} | This section is empty. You can help by adding to it. (December 2024) |
Saros 129
[edit]Lunar saros series 129, repeating every 18 years and 11 days, containing 71 events, has 11 total lunar eclipses. The first total lunar eclipse of this series was on May 24, 1910, and last will be on September 8, 2090. The longest occurrence of this series was on July 16, 2000 when totality lasted 106 minutes and 24.6 seconds.
| Greatest | First | |||
|---|---|---|---|---|
 The greatest eclipse of the series occurred on 2000 Jul 16, lasting 106 minutes. |
Penumbral | Partial | Total | Central |
| 1351 Jun 10 | 1513 Sep 15 | 1910 May 24 | 1946 Jun 14 | |
| Last | ||||
| Central | Total | Partial | Penumbral | |
| 2036 Aug 7 | 2090 Sep 8 | 2469 Apr 26 | 2613 Jul 24 | |
| 1910 May 24 | 1928 Jun 3 | 1946 Jun 14 | |||
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| 1964 Jun 25 | 1982 Jul 6 | 2000 Jul 16 | |||
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| 2018 Jul 27 | 2036 Aug 7 | 2054 Aug 18 | |||
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| 2072 Aug 28 | 2090 Sep 8 | ||||
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It last occurred on August 18, 2054 and will next occur on September 20, 2108.
This is the 42nd member of Lunar Saros 129, and the last total eclipse. The previous event is the August 2072 lunar eclipse. Lunar Saros 129 contains 11 total lunar eclipses between 1910 and 2090. Solar Saros 136 interleaves with this lunar saros with an event occurring every 9 years 5 days alternating between each saros series.
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 total solar eclipses of Solar Saros 136.
| September 3, 2081 | September 14, 2099 |
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See also
[edit]Notes
[edit]- ^ "September 8–9, 2090 Total Lunar Eclipse (Blood Moon)". timeanddate. Retrieved 14 December 2024.
- ^ "Moon Distances for London, United Kingdom, England". timeanddate. Retrieved 14 December 2024.
- ^ "Total Lunar Eclipse of 2090 Sep 08" (PDF). NASA. Retrieved 14 December 2024.
- ^ "Total Lunar Eclipse of 2090 Sep 08". EclipseWise.com. Retrieved 14 December 2024.
- ^ Mathematical Astronomy Morsels, Jean Meeus, p.110, Chapter 18, The half-saros
External links
[edit]- 2090 Sep 08 chart Eclipse Predictions by Fred Espenak, NASA/GSFC
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