April 2099 lunar eclipse
| Partial eclipse | |||||||||||||
 The Moon's hourly motion shown right to left | |||||||||||||
| Date | April 5, 2099 | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Gamma | −0.9304 | ||||||||||||
| Magnitude | 0.1680 | ||||||||||||
| Saros cycle | 143 (23 of 73) | ||||||||||||
| Partiality | 88 minutes, 4 seconds | ||||||||||||
| Penumbral | 257 minutes, 43 seconds | ||||||||||||
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A partial lunar eclipse will occur at the Moon’s descending node of orbit on Sunday, April 5, 2099,[1] with an umbral magnitude of 0.1680. A lunar eclipse occurs when the Moon moves into the Earth's shadow, causing the Moon to be darkened. A partial lunar eclipse occurs when one part of the Moon is in the Earth's umbra, while the other part is in 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 1.4 days after perigee (on April 3, 2099, at 23:30 UTC), the Moon's apparent diameter will be larger.[2]
Visibility
[edit]The eclipse will be completely visible over North America, western South America, and the central and eastern Pacific Ocean, seen rising over northeast Asia and Australia and setting over eastern South America.[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 | 1.13534 |
| Umbral Magnitude | 0.16996 |
| Gamma | −0.93038 |
| Sun Right Ascension | 00h58m32.6s |
| Sun Declination | +06°14'54.6" |
| Sun Semi-Diameter | 15'59.6" |
| Sun Equatorial Horizontal Parallax | 08.8" |
| Moon Right Ascension | 12h56m44.9s |
| Moon Declination | -07°04'45.1" |
| Moon Semi-Diameter | 16'34.0" |
| Moon Equatorial Horizontal Parallax | 1°00'48.0" |
| ΔT | 126.2 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.
| March 21 Ascending node (new moon) |
April 5 Descending node (full moon) |
|---|---|
 |
|
| Annular solar eclipse Solar Saros 131 |
Partial lunar eclipse Lunar Saros 143 |
Related eclipses
[edit]Eclipses in 2099
[edit]- An annular solar eclipse on March 21.
- A partial lunar eclipse on April 5.
- A total solar eclipse on September 14.
- A penumbral lunar eclipse on September 29.
Metonic
[edit]- Preceded by: Lunar eclipse of June 17, 2095
- Followed by: Lunar eclipse of January 23, 2103
Tzolkinex
[edit]- Preceded by: Lunar eclipse of February 23, 2092
- Followed by: Lunar eclipse of May 17, 2106
Half-Saros
[edit]- Preceded by: Solar eclipse of March 31, 2090
- Followed by: Solar eclipse of April 11, 2108
Tritos
[edit]- Preceded by: Lunar eclipse of May 5, 2088
- Followed by: Lunar eclipse of March 6, 2110
Lunar Saros 143
[edit]- Preceded by: Lunar eclipse of March 25, 2081
- Followed by: Lunar eclipse of April 16, 2117
Inex
[edit]- Preceded by: Lunar eclipse of April 25, 2070
- Followed by: Lunar eclipse of March 16, 2128
Triad
[edit]- Preceded by: Lunar eclipse of June 4, 2012
- Followed by: Lunar eclipse of February 4, 2186
Lunar eclipses of 2096–2099
[edit]![[icon]](/wiki/File:Wiki_letter_w_cropped.svg){kind=small} | This section is empty. You can help by adding to it. (December 2024) |
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 150.
| March 31, 2090 | April 11, 2108 |
|---|---|
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See also
[edit]Notes
[edit]- ^ "April 4–5, 2099 Partial Lunar Eclipse". timeanddate. Retrieved 14 December 2024.
- ^ "Moon Distances for London, United Kingdom, England". timeanddate. Retrieved 14 December 2024.
- ^ "Partial Lunar Eclipse of 2099 Apr 05" (PDF). NASA. Retrieved 14 December 2024.
- ^ "Partial Lunar Eclipse of 2099 Apr 05". EclipseWise.com. Retrieved 14 December 2024.
- ^ Mathematical Astronomy Morsels, Jean Meeus, p.110, Chapter 18, The half-saros
External links
[edit]- 2099 Apr 05 chart Eclipse Predictions by Fred Espenak, NASA/GSFC
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