Solar eclipse of September 21, 1903

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Template:Short description Script error: No such module "Solar eclipse". A total solar eclipse occurred at the Moon's ascending node of orbit on Monday, September 21, 1903,[1][2][3][4] with a magnitude of 1.0316. 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. Occurring about 2.1 days after perigee (on September 19, 1904, at 2:00 UTC), the Moon's apparent diameter was larger.[5]

The path of totality crossed Antarctica and the south Indian Ocean. A partial eclipse was visible for parts of Southeast Africa, Southern Australia, New Zealand, and Antarctica.

Eclipse details

Shown below are two tables displaying details about this particular solar eclipse. The first table outlines times at which the moon's penumbra or umbra attains the specific parameter, and the second table describes various other parameters pertaining to this eclipse.[6]

September 21, 1903 Solar Eclipse Times
Event Time (UTC)
First Penumbral External Contact 1903 September 21 at 02:27:46.5 UTC
First Umbral External Contact 1903 September 21 at 03:52:01.4 UTC
First Central Line 1903 September 21 at 03:53:33.3 UTC
First Umbral Internal Contact 1903 September 21 at 03:55:07.6 UTC
Ecliptic Conjunction 1903 September 21 at 04:30:40.1 UTC
Greatest Duration 1903 September 21 at 04:38:45.6 UTC
Greatest Eclipse 1903 September 21 at 04:39:51.9 UTC
Equatorial Conjunction 1903 September 21 at 05:10:23.8 UTC
Last Umbral Internal Contact 1903 September 21 at 05:24:15.9 UTC
Last Central Line 1903 September 21 at 05:25:48.2 UTC
Last Umbral External Contact 1903 September 21 at 05:27:18.0 UTC
Last Penumbral External Contact 1903 September 21 at 06:51:47.0 UTC
September 21, 1903 Solar Eclipse Parameters
Parameter Value
Eclipse Magnitude 1.03156
Eclipse Obscuration 1.06411
Gamma −0.89674
Sun Right Ascension 11h49m03.6s
Sun Declination +01°11'08.7"
Sun Semi-Diameter 15'55.9"
Sun Equatorial Horizontal Parallax 08.8"
Moon Right Ascension 11h47m57.9s
Moon Declination +00°20'09.1"
Moon Semi-Diameter 16'19.2"
Moon Equatorial Horizontal Parallax 0°59'53.7"
ΔT 2.2 s

Eclipse season

Script error: No such module "Labelled list hatnote". 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.

Eclipse season of September–October 1903
September 21
Ascending node (new moon)		 October 6
Descending node (full moon)
File:SE1903Sep21T.png File:Lunar eclipse chart close-1903Oct06.png
Total solar eclipse
Solar Saros 123

Partial lunar eclipse
Lunar Saros 135

Related eclipses

Eclipses in 1903

Metonic

Tzolkinex

Half-Saros

Tritos

Solar Saros 123

Inex

Triad

Solar eclipses of 1902–1906

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.[7]

The partial solar eclipses on May 7, 1902 and October 31, 1902 occur in the previous lunar year eclipse set, and the partial solar eclipse on July 21, 1906 occurs in the next lunar year eclipse set.

Solar eclipse series sets from 1902 to 1906
Descending node   Ascending node
Saros Map Gamma Saros Map Gamma
108 April 8, 1902
File:SE1902Apr08P.png
Partial 		1.5024 113 October 1, 1902
118 March 29, 1903
File:SE1903Mar29A.png
Annular 		0.8413 123 September 21, 1903
File:SE1903Sep21T.png
Total 		−0.8967
128 March 17, 1904
File:SE1904Mar17A.png
Annular 		0.1299 133 September 9, 1904
File:SE1904Sep09T.png
Total 		−0.1625
138 March 6, 1905
File:SE1905Mar06A.png
Annular 		−0.5768 143
File:PSM V68 D565 Sun corona of August 30 1905 taken with 40 foot camera.png 		August 30, 1905
File:SE1905Aug30T.png
Total 		0.5708
148 February 23, 1906
File:SE1906Feb23P.png
Partial 		−1.2479 153 August 20, 1906
File:SE1906Aug20P.png
Partial 		1.3731

Saros 123

Template:Solar Saros series 123

Metonic series

Template:Solar Metonic series 1880–1964

Tritos series

Template:Solar Tritos series 2001 December 14

Inex series

Template:Solar Inex series 2019 July 2

Notes

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References

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