Solar eclipse of April 20, 2042

Solar eclipse of April 20, 2042
Solar eclipse of April 20, 2042
	Map
Type of eclipse
Nature	Total
Gamma	0.2956
Magnitude	1.0614
Maximum eclipse
Duration	291 s (4 min 51 s)
Coordinates	27°00′N 137°18′E / 27°N 137.3°E
Max. width of band	210 km (130 mi)
Times (UTC)
Greatest eclipse	2:17:30
References
Saros	139 (31 of 71)
Catalog # (SE5000)	9601

A total solar eclipse will occur at the Moon's ascending node of orbit on Sunday, April 20, 2042, with a magnitude of 1.0614. A solar eclipse occurs when the Moon passes between Earth and the Sun, thereby totally or partly obscuring the image of the Sun for a viewer on Earth. A total solar eclipse occurs when the Moon's apparent diameter is larger than the Sun's, blocking all direct sunlight, turning day into darkness. Totality occurs in a narrow path across Earth's surface, with the partial solar eclipse visible over a surrounding region thousands of kilometres wide. It will be seen significantly in Western Indonesia (particularly in Sumatra), Eastern Malaysia, Brunei and the Philippines.

Images[edit]

Animated path

Related eclipses[edit]

Solar eclipses of 2040–2043[edit]

This eclipse is a member of a semester series. An eclipse in a semester series of solar eclipses repeats approximately every 177 days and 4 hours (a semester) at alternating nodes of the Moon's orbit.^[1]

Solar eclipse series sets from 2040 to 2043
Ascending node			Descending node
Saros	Map	Gamma	Saros	Map	Gamma
119	May 11, 2040 Partial	−1.2529	124	November 4, 2040 Partial	1.0993
129	April 30, 2041 Total	−0.4492	134	October 25, 2041 Annular	0.4133
139	April 20, 2042 Total	0.2956	144	October 14, 2042 Annular	−0.303
149	April 9, 2043 Total (non-central)	1.0031	154	October 3, 2043 Annular (non-central)	1.0102

Saros 139[edit]

This eclipse is a part of Saros series 139, repeating every 18 years, 11 days, and containing 71 events. The series started with a partial solar eclipse on May 17, 1501. It contains hybrid eclipses from August 11, 1627 through December 9, 1825 and total eclipses from December 21, 1843 through March 26, 2601. There are no annular eclipses in this set. The series ends at member 71 as a partial eclipse on July 3, 2763. Its 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.

The longest duration of totality will be produced by member 61 at 7 minutes, 29.22 seconds on July 16, 2186. This date is the longest solar eclipse computed between 4000 BC and AD 6000.^[2] All eclipses in this series occur at the Moon’s ascending node of orbit.^[3]

Series members 18–39 occur between 1801 and 2200:
18	19	20
November 29, 1807	December 9, 1825	December 21, 1843
21	22	23
December 31, 1861	January 11, 1880	January 22, 1898
24	25	26
February 3, 1916	February 14, 1934	February 25, 1952
27	28	29
March 7, 1970	March 18, 1988	March 29, 2006
30	31	32
April 8, 2024	April 20, 2042	April 30, 2060
33	34	35
May 11, 2078	May 22, 2096	June 3, 2114
36	37	38
June 13, 2132	June 25, 2150	July 5, 2168
39
July 16, 2186

Inex series[edit]

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.

Inex series members between 1901 and 2100:
July 9, 1926 (Saros 135)	June 20, 1955 (Saros 136)	May 30, 1984 (Saros 137)
May 10, 2013 (Saros 138)	April 20, 2042 (Saros 139)	March 31, 2071 (Saros 140)
March 10, 2100 (Saros 141)

Metonic series[edit]

The metonic series repeats eclipses every 19 years (6939.69 days), lasting about 5 cycles. Eclipses occur in nearly the same calendar date. In addition, the octon subseries repeats 1/5 of that or every 3.8 years (1387.94 days). All eclipses in this table occur at the Moon's ascending node.

21 eclipse events, progressing from south to north between July 1, 2000 and July 1, 2076
July 1–2	April 19–20	February 5–7	November 24–25	September 12–13
117	119	121	123	125
July 1, 2000	April 19, 2004	February 7, 2008	November 25, 2011	September 13, 2015
127	129	131	133	135
July 2, 2019	April 20, 2023	February 6, 2027	November 25, 2030	September 12, 2034
137	139	141	143	145
July 2, 2038	April 20, 2042	February 5, 2046	November 25, 2049	September 12, 2053
147	149	151	153	155
July 1, 2057	April 20, 2061	February 5, 2065	November 24, 2068	September 12, 2072
157	159	161	163	165
July 1, 2076