April 2099 lunar eclipse
A partial lunar eclipse will occur at the Moon’s descending node of orbit on Sunday, April 5, 2099, 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, the Moon's apparent diameter will be larger.
Visibility
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.Eclipse details
Shown below is a table displaying details about this particular lunar eclipse. It describes various parameters pertaining to this eclipse.| 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
This eclipse is part of an eclipse season, a period, roughly every six months, when eclipses occur. Only two eclipse seasons occur each year, and each season lasts about 35 days and repeats just short of six months 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 | April 5 Descending node |
| Annular solar eclipse Solar Saros 131 | Partial lunar eclipse Lunar Saros 143 |
Related eclipses
Eclipses in 2099
- 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
- Preceded by: Lunar eclipse of June 17, 2095
- Followed by: Lunar eclipse of January 23, 2103
Tzolkinex
- Preceded by: Lunar eclipse of February 23, 2092
- Followed by: Lunar eclipse of May 17, 2106
Half-Saros
- Preceded by: Solar eclipse of March 31, 2090
- Followed by: Solar eclipse of April 11, 2108
Tritos
- Preceded by: Lunar eclipse of May 5, 2088
- Followed by: Lunar eclipse of March 6, 2110
Lunar Saros 143
- Preceded by: Lunar eclipse of March 25, 2081
- Followed by: Lunar eclipse of April 16, 2117
Inex
- Preceded by: Lunar eclipse of April 25, 2070
- Followed by: Lunar eclipse of March 16, 2128
Triad
- Preceded by: Lunar eclipse of June 4, 2012
- Followed by: Lunar eclipse of February 4, 2186
Lunar eclipses of 2096–2099
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 at alternating nodes of the Moon's orbit.The penumbral lunar eclipses on June 6, 2096 and November 29, 2096 occur in the previous lunar year eclipse set.
Half-Saros cycle
A lunar eclipse will be preceded and followed by solar eclipses by 9 years and 5.5 days. This lunar eclipse is related to two partial solar eclipses of Solar Saros 150.| March 31, 2090 | April 11, 2108 |