Solar eclipse of March 17, 1904

Solar eclipse of March 17, 1904
Solar eclipse of March 17, 1904
	Map
Type of eclipse
Nature	Annular
Gamma	0.1299
Magnitude	0.9367
Maximum eclipse
Duration	487 sec (8 m 7 s)
Coordinates	5°36′N 94°42′E / 5.6°N 94.7°E
Max. width of band	237 km (147 mi)
Times (UTC)
Greatest eclipse	5:40:44
References
Saros	128 (52 of 73)
Catalog # (SE5000)	9290

An annular solar eclipse occurred on March 17, 1904, also known as the "1904 St. Patrick's Day eclipse".^{[citation needed]} 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. An annular solar eclipse occurs when the Moon's apparent diameter is smaller than the Sun's, blocking most of the Sun's light and causing the Sun to look like an annulus (ring). An annular eclipse appears as a partial eclipse over a region of the Earth thousands of kilometres wide.

Related eclipses[]

Solar eclipses 1902–1907[]

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]

showSolar eclipse series sets from 1902–1907
Descending node		Ascending node
108	April 8, 1902 Partial	113	October 1, 1902
118	March 29, 1903 Annular	123	September 21, 1903 Total
128	March 17, 1904 Annular	133	September 9, 1904 Total
138	March 6, 1905 Annular	143	August 30, 1905 Total
148	February 23, 1906 Partial	153	August 20, 1906 Partial

Saros 128[]

This eclipse is a member of the Solar Saros cycle 128, which includes 73 eclipses occurring in intervals of 18 years and 11 days. The series started with partial solar eclipse on August 29, 984 AD. From May 16, 1417 through June 18, 1471 the series produced total solar eclipses, followed by hybrid solar eclipses from June 28, 1489 through July 31, 1543, and annular solar eclipses from August 11, 1561 through July 25, 2120. The series ends at member 73 as a partial eclipse on November 1, 2282. All eclipses in this series occurs at the Moon’s descending node.

showSeries members 52–68 occur between 1901 and 2200
52	53	54
March 17, 1904	March 28, 1922	April 7, 1940
55	56	57
April 19, 1958	April 29, 1976	May 10, 1994
58	59	60
May 20, 2012	June 1, 2030	June 11, 2048
61	62	63
June 22, 2066	July 3, 2084	July 15, 2102
64	65	66
July 25, 2120	August 5, 2138 (Partial)	August 16, 2156 (Partial)
67	68
August 27, 2174 (Partial)	September 6, 2192 (Partial)

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.

showSeries members between 1801 and 2100
December 21, 1805 (Saros 119)	November 19, 1816 (Saros 120)	October 20, 1827 (Saros 121)
September 18, 1838 (Saros 122)	August 18, 1849 (Saros 123)	July 18, 1860 (Saros 124)
June 18, 1871 (Saros 125)	May 17, 1882 (Saros 126)	April 16, 1893 (Saros 127)
March 17, 1904 (Saros 128)	February 14, 1915 (Saros 129)	January 14, 1926 (Saros 130)
December 13, 1936 (Saros 131)	November 12, 1947 (Saros 132)	October 12, 1958 (Saros 133)
September 11, 1969 (Saros 134)	August 10, 1980 (Saros 135)	July 11, 1991 (Saros 136)
June 10, 2002 (Saros 137)	May 10, 2013 (Saros 138)	April 8, 2024 (Saros 139)
March 9, 2035 (Saros 140)	February 5, 2046 (Saros 141)	January 5, 2057 (Saros 142)
December 6, 2067 (Saros 143)	November 4, 2078 (Saros 144)	October 4, 2089 (Saros 145)
September 4, 2100 (Saros 146)