An annular solar eclipse occurred at the Moon's descending node of orbit between Saturday, July 29 and Sunday, July 30, 1916, 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. Occurring 1.75 days after apogee (on July 28, 1916, at 8:30 UTC), the Moon's apparent diameter was smaller.

Annularity was visible from only one country, Australia. A partial eclipse was visible for parts of Southeast Asia, Australia, Oceania, 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.

+July 30, 1916 Solar Eclipse Times Event Time (UTC) First Penumbral External Contact 1916 July 29 at 23:25:03.9 UTC First Umbral External Contact 1916 July 30 at 00:47:30.3 UTC First Central Line 1916 July 30 at 00:50:59.3 UTC First Umbral Internal Contact 1916 July 30 at 00:54:34.2 UTC Greatest Duration 1916 July 30 at 01:57:38.0 UTC Greatest Eclipse 1916 July 30 at 02:06:10.4 UTC Ecliptic Conjunction 1916 July 30 at 02:15:15.4 UTC Equatorial Conjunction 1916 July 30 at 02:39:41.5 UTC Last Umbral Internal Contact 1916 July 30 at 03:17:25.6 UTC Last Central Line 1916 July 30 at 03:21:00.0 UTC Last Umbral External Contact 1916 July 30 at 03:24:28.3 UTC Last Penumbral External Contact 1916 July 30 at 04:47:01.1 UTC

+July 30, 1916 Solar Eclipse Parameters Parameter Value Eclipse Magnitude 0.94470 Eclipse Obscuration 0.89247 Gamma –0.77095 Sun Right Ascension 08h35m48.5s Sun Declination +18°38'31.7" Sun Semi-Diameter 15'45.3" Sun Equatorial Horizontal Parallax 08.7" Moon Right Ascension 08h34m48.1s Moon Declination +17°59'27.9" Moon Semi-Diameter 14'44.7" Moon Equatorial Horizontal Parallax 0°54'06.8" ΔT 18.7 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.

+ Eclipse season of July 1916 July 15Ascending node (full moon) July 30Descending node (new moon) Penumbral lunar eclipseLunar Saros 118 Annular solar eclipseSolar Saros 144

Related eclipses Eclipses in 1916 A partial lunar eclipse on January 20. A total solar eclipse on February 3. A partial lunar eclipse on July 15. An annular solar eclipse on July 30. A partial solar eclipse on December 24.

Metonic Preceded by: Solar eclipse of October 10, 1912 Followed by: Solar eclipse of May 18, 1920

Tzolkinex Preceded by: Solar eclipse of June 17, 1909 Followed by: Solar eclipse of September 10, 1923

Half-Saros Preceded by: Lunar eclipse of July 25, 1907 Followed by: Lunar eclipse of August 4, 1925

Tritos Preceded by: Solar eclipse of August 30, 1905 Followed by: Solar eclipse of June 29, 1927

Solar Saros 144 Preceded by: Solar eclipse of July 18, 1898 Followed by: Solar eclipse of August 10, 1934

Inex Preceded by: Solar eclipse of August 19, 1887 Followed by: Solar eclipse of July 9, 1945

Triad Preceded by: Solar eclipse of September 28, 1829 Followed by: Solar eclipse of May 31, 2003

Solar eclipses of 1913–1917

Saros 144

Metonic series

Tritos series

Inex series

Notes

References