July 2038 lunar eclipse

July 2038 lunar eclipse
Penumbral eclipse
	The Moon's hourly motion shown right to left
Date	July 16, 2038
Gamma	−1.2837
Magnitude	−0.4938
Saros cycle	149 (4 of 72)
Penumbral	192 minutes, 27 seconds
P1
Contacts (UTC)
P1	9:58:13
Greatest	11:35:56
P4	13:10:40
	← June 2038 December 2038 →

A penumbral lunar eclipse will occur at the Moon’s descending node of orbit on Friday, July 16, 2038,^[1] with an umbral magnitude of −0.4938. 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 4.9 days before perigee (on July 11, 2038, at 15:35 UTC), the Moon's apparent diameter will be larger.^[2]

This eclipse will be the third of four penumbral lunar eclipses in 2038, with the others occurring on January 21, June 17, and December 11.

Visibility

The eclipse will be completely visible over Australia, Antarctica, and the Pacific Ocean, seen rising over east Asia and setting over North and South America.^[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 16, 2038 Lunar Eclipse Parameters
Parameter	Value
Penumbral Magnitude	0.50125
Umbral Magnitude	−0.49383
Gamma	−1.28381
Sun Right Ascension	07h43m47.7s
Sun Declination	+21°17'34.6"
Sun Semi-Diameter	15'44.2"
Sun Equatorial Horizontal Parallax	08.7"
Moon Right Ascension	19h44m13.1s
Moon Declination	-22°31'51.1"
Moon Semi-Diameter	15'48.9"
Moon Equatorial Horizontal Parallax	0°58'02.4"
ΔT	78.3 s

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. The first and last eclipse in this sequence is separated by one synodic month.

Eclipse season of June–July 2038
June 17 Descending node (full moon)	July 2 Ascending node (new moon)	July 16 Descending node (full moon)

Penumbral lunar eclipse Lunar Saros 111	Annular solar eclipse Solar Saros 137	Penumbral lunar eclipse Lunar Saros 149

Related eclipses

Lunar eclipses of 2035–2038

Lunar eclipse series sets from 2035-2038
Saros	Date Viewing	Type Chart	Saros	Date Viewing	Type Chart
Ascending node			Descending node
114	2035 Feb 22	Penumbral	119	2035 Aug 19	Partial
124	2036 Feb 11	Total	129	2036 Aug 07	Total
134	2037 Jan 31	Total	139	2037 Jul 27	Partial
144	2038 Jan 21	Penumbral	149	2038 Jul 16	Penumbral

Last set	2034 Apr 03		Last set	2034 Sep 28

Next set	2038 Jun 17		Next set	2038 Dec 11

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 156.