A penumbral lunar eclipse will occur at the Moon’s descending node of orbit on Saturday, April 5, 2042, with an umbral magnitude of −0.2156. 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 1.6 days after apogee (on April 4, 2042, at 1:50 UTC), the Moon's apparent diameter will be smaller. It will occur on Easter Sunday (Gregorian only), the only such case for an eclipse between April 2015 and April 2164.
Visibility The eclipse will be completely visible over east Asia and Australia, seen rising over east Africa and west and central Asia and setting over western North America.
Eclipse details Shown below is a table displaying details about this particular eclipse. It describes various parameters pertaining to this eclipse.
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.
Related eclipses
Eclipses in 2042 A penumbral lunar eclipse on April 5. A total solar eclipse on April 20. A penumbral lunar eclipse on September 29. An annular solar eclipse on October 14. A penumbral lunar eclipse on October 28.
Metonic Preceded by: Lunar eclipse of June 17, 2038 Followed by: Lunar eclipse of January 22, 2046
Tzolkinex Preceded by: Lunar eclipse of February 22, 2035 Followed by: Lunar eclipse of May 17, 2049
Half-Saros Preceded by: Solar eclipse of March 30, 2033 Followed by: Solar eclipse of April 11, 2051
Tritos Preceded by: Lunar eclipse of May 7, 2031 Followed by: Lunar eclipse of March 4, 2053
Lunar Saros 113 Preceded by: Lunar eclipse of March 25, 2024 Followed by: Lunar eclipse of April 15, 2060
Inex Preceded by: Lunar eclipse of April 25, 2013 Followed by: Lunar eclipse of March 16, 2071
Triad Preceded by: Lunar eclipse of June 5, 1955 Followed by: Lunar eclipse of February 4, 2129
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.
Saros 113 This eclipse is a part of Saros series 113, repeating every 18 years, 11 days, and containing 71 events. The series started with a penumbral lunar eclipse on April 29, 888 AD. It contains partial eclipses from July 14, 1014 through March 10, 1411; total eclipses from March 20, 1429 through August 7, 1645; and a second set of partial eclipses from August 18, 1663 through February 21, 1970. The series ends at member 71 as a penumbral eclipse on June 10, 2150. The longest duration of totality was produced by member 38 at 103 minutes, 6 seconds on June 5, 1555. All eclipses in this series occur at the Moon’s descending node of orbit.
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.
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.
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.
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 annular solar eclipses of Solar Saros 120.
See also List of lunar eclipses and List of 21st-century lunar eclipses
Notes
External links 2042 Apr 05 chart: Eclipse Predictions by Fred Espenak, NASA/GSFC