Solar eclipse of July 30, 1916

Solar eclipse of July 30, 1916
Solar eclipse of July 30, 1916
	Map
Type of eclipse
Nature	Annular
Gamma	−0.7709
Magnitude	0.9447
Maximum eclipse
Duration	384 s (6 min 24 s)
Coordinates	29°00′S 132°24′E / 29°S 132.4°E
Max. width of band	313 km (194 mi)
Times (UTC)
Greatest eclipse	2:06:10
References
Saros	144 (11 of 70)
Catalog # (SE5000)	9318

An annular solar eclipse occurred at the Moon's descending node of orbit on Sunday, July 30, 1916,^[1]^[2] with a magnitude of 0.9447. 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. Annularity was visible from only one country, Australia.

Related eclipses[edit]

Solar eclipses of 1913–1917[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.^[3]

The partial solar eclipses on April 6, 1913 and September 30, 1913 occur in the previous lunar year eclipse set, and the solar eclipses on December 24, 1916 (partial), June 19, 1917 (partial), and December 14, 1917 (annular) occur in the next lunar year eclipse set.

Solar eclipse series sets from 1913 to 1917
Descending node			Ascending node
Saros	Map	Gamma	Saros	Map	Gamma
114	August 31, 1913 Partial	1.4512	119	February 25, 1914 Annular	−0.9416
124	August 21, 1914 Total	0.7655	129	February 14, 1915 Annular	−0.2024
134	August 10, 1915 Annular	0.0124	139	February 3, 1916 Total	0.4987
144	July 30, 1916 Annular	−0.7709	149	January 23, 1917 Partial	1.1508
154	July 19, 1917 Partial	−1.5101

Saros 144[edit]

This eclipse is a part of Saros series 144, repeating every 18 years, 11 days, and containing 70 events. The series started with a partial solar eclipse on April 11, 1736. It contains annular eclipses from July 7, 1880 through August 27, 2565. There are no hybrid or total eclipses in this set. The series ends at member 70 as a partial eclipse on May 5, 2980. 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 annularity will be produced by member 51 at 9 minutes, 52 seconds on December 29, 2168. All eclipses in this series occur at the Moon’s descending node of orbit.^[4]

Series members 5–26 occur between 1801 and 2200:
5	6	7
May 25, 1808	June 5, 1826	June 16, 1844
8	9	10
June 27, 1862	July 7, 1880	July 18, 1898
11	12	13
July 30, 1916	August 10, 1934	August 20, 1952
14	15	16
August 31, 1970	September 11, 1988	September 22, 2006
17	18	19
October 2, 2024	October 14, 2042	October 24, 2060
20	21	22
November 4, 2078	November 15, 2096	November 27, 2114
23	24	25
December 7, 2132	December 19, 2150	December 29, 2168
26
January 9, 2187

Notes[edit]

^ "ECLIPSE OF THE SUN. A STRIKING SPECTACLE. CROWDS USE SMOKED GLASS. WORK IN OBSERVATORY". The Age. Melbourne, Victoria, Victoria, Australia. 1916-07-31. p. 8. Retrieved 2023-12-02 – via Newspapers.com.
^ "SOLAR ECLIPSE. SPLENDID VIEW IN SYDNEY". The Sydney Morning Herald. Sydney, New South Wales, New South Wales, Australia. 1916-07-31. p. 8. Retrieved 2023-12-02 – via Newspapers.com.
^ van Gent, R.H. "Solar- and Lunar-Eclipse Predictions from Antiquity to the Present". A Catalogue of Eclipse Cycles. Utrecht University. Retrieved 6 October 2018.
^ "NASA - Catalog of Solar Eclipses of Saros 144". eclipse.gsfc.nasa.gov.