August 2027 lunar eclipse
A penumbral lunar eclipse will occur at the Moon’s ascending node of orbit on Tuesday, August 17, 2027, with an umbral magnitude of −0.5234. 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 1.9 days after apogee, the Moon's apparent diameter will be smaller.
Visibility
The eclipse will be completely visible over North and South America, seen rising over Australia and the central Pacific Ocean and setting over west Africa.Eclipse details
Shown below is a table displaying details about this particular eclipse. It describes various parameters pertaining to this eclipse.| Parameter | Value |
| Penumbral Magnitude | 0.54758 |
| Umbral Magnitude | −0.52344 |
| Gamma | 1.27974 |
| Sun Right Ascension | 09h45m58.6s |
| Sun Declination | +13°27'30.2" |
| Sun Semi-Diameter | 15'47.8" |
| Sun Equatorial Horizontal Parallax | 08.7" |
| Moon Right Ascension | 21h43m58.8s |
| Moon Declination | -12°24'40.9" |
| Moon Semi-Diameter | 14'44.9" |
| Moon Equatorial Horizontal Parallax | 0°54'07.8" |
| ΔT | 72.8 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. The first and last eclipse in this sequence is separated by one synodic month.| July 18 Ascending node | August 2 Descending node | August 17 Ascending node |
| Penumbral lunar eclipse Lunar Saros 110 | Total solar eclipse Solar Saros 136 | Penumbral lunar eclipse Lunar Saros 148 |
Related eclipses
Eclipses in 2027
- An annular solar eclipse on February 6.
- A penumbral lunar eclipse on February 20.
- A penumbral lunar eclipse on July 18.
- A total solar eclipse on August 2.
- '''A penumbral lunar eclipse on August 17.'''
Metonic
- Preceded by: Lunar eclipse of October 28, 2023
- Followed by: Lunar eclipse of June 5, 2031
Tzolkinex
- Preceded by: Lunar eclipse of July 5, 2020
- Followed by: Lunar eclipse of September 28, 2034
Half-Saros
- Preceded by: Solar eclipse of August 11, 2018
- Followed by: Solar eclipse of August 21, 2036
Tritos
- Preceded by: Lunar eclipse of September 16, 2016
- Followed by: Lunar eclipse of July 16, 2038
Lunar Saros 148
- Preceded by: Lunar eclipse of August 6, 2009
- Followed by: Lunar eclipse of August 27, 2045
Inex
- Preceded by: Lunar eclipse of September 6, 1998
- Followed by: Lunar eclipse of July 26, 2056
Triad
- Preceded by: Lunar eclipse of October 16, 1940
- Followed by: Lunar eclipse of June 18, 2114
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 155.| August 11, 2018 | August 21, 2036 |