July 2037 lunar eclipse explained

Type:partial
Date:July 27, 2037
Gamma:−0.5582
Magnitude:0.8108
Saros Ser:139
Saros No:23 of 81
Partiality:192 minutes, 25 seconds
Penumbral:340 minutes, 49 seconds
P1:1:19:29
U1:2:33:41
Greatest:4:09:53
U4:5:46:05
P4:7:00:17
Previous:January 2037
Next:January 2038

A partial lunar eclipse will occur at the Moon’s descending node of orbit on Monday, July 27, 2037,[1] with an umbral magnitude of 0.8108. 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 4.1 days before apogee (on July 31, 2037, at 8:30 UTC), the Moon's apparent diameter will be smaller.[2]

This lunar eclipse will be the last of an almost tetrad, with the others being on February 11, 2036 (total); August 7, 2036 (total); and January 31, 2037 (total).

Visibility

The eclipse will be completely visible over eastern North America and South America, seen rising over western North America and the eastern Pacific Ocean and setting over Africa and Europe.[3]

Eclipse details

Shown below is a table displaying details about this particular solar eclipse. It describes various parameters pertaining to this eclipse.[4]

July 27, 2037 Lunar Eclipse Parameters! Parameter! Value
Penumbral Magnitude1.85965
Umbral Magnitude0.81075
Gamma−0.55822
Sun Right Ascension08h27m18.9s
Sun Declination+19°07'58.8"
Sun Semi-Diameter15'45.0"
Sun Equatorial Horizontal Parallax08.7"
Moon Right Ascension20h27m37.3s
Moon Declination-19°38'25.9"
Moon Semi-Diameter15'00.9"
Moon Equatorial Horizontal Parallax0°55'06.5"
ΔT77.8 s

Eclipse season

See also: Eclipse cycle. 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 2037

Metonic

Tzolkinex

Half-Saros

Tritos

Lunar Saros 139

Inex

Triad

Half-Saros cycle

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 146.

See also

Notes and References

  1. Web site: July 26–27, 2037 Partial Lunar Eclipse. timeanddate. 29 November 2024.
  2. Web site: Moon Distances for London, United Kingdom, England. timeanddate. 29 November 2024.
  3. Web site: Partial Lunar Eclipse of 2037 Jul 27. NASA. 29 November 2024.
  4. Web site: Partial Lunar Eclipse of 2037 Jul 27. EclipseWise.com. 29 November 2024.
  5. Mathematical Astronomy Morsels, Jean Meeus, p.110, Chapter 18, The half-saros