Solar eclipse of August 10, 1915

An annular solar eclipse occurred at the Moon's descending node of orbit between Tuesday, August 10 and Wednesday, August 11, 1915, with a magnitude of 0.9853. 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. An annular eclipse appears as a partial eclipse over a region of the Earth thousands of kilometres wide. Occurring 5.8 days after apogee, the Moon's apparent diameter was smaller.
Annularity was visible from the Pacific Ocean, with the only land being Haha-jima Group in Japan, where the eclipse occurred on August 11 because it is west of International Date Line. A partial eclipse was visible for parts of Northeast Asia, northern Oceania, and Hawaii.

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.

Event	Time
First Penumbral External Contact	1915 August 10 at 19:56:16.8 UTC
First Umbral External Contact	1915 August 10 at 20:58:11.2 UTC
First Central Line	1915 August 10 at 20:59:11.3 UTC
Greatest Duration	1915 August 10 at 20:59:11.3 UTC
First Umbral Internal Contact	1915 August 10 at 21:00:11.3 UTC
First Penumbral Internal Contact	1915 August 10 at 22:02:04.6 UTC
Equatorial Conjunction	1915 August 10 at 22:51:48.2 UTC
Ecliptic Conjunction	1915 August 10 at 22:52:16.2 UTC
Greatest Eclipse	1915 August 10 at 22:52:24.5 UTC
Last Penumbral Internal Contact	1915 August 10 at 23:42:46.5 UTC
Last Umbral Internal Contact	1915 August 11 at 00:44:40.1 UTC
Last Central Line	1915 August 11 at 00:45:37.4 UTC
Last Umbral External Contact	1915 August 11 at 00:46:34.7 UTC
Last Penumbral External Contact	1915 August 11 at 01:48:26.3 UTC

Parameter	Value
Eclipse Magnitude	0.98528
Eclipse Obscuration	0.97078
Gamma	0.01237
Sun Right Ascension	09h18m36.8s
Sun Declination	+15°41'16.7"
Sun Semi-Diameter	15'46.8"
Sun Equatorial Horizontal Parallax	08.7"
Moon Right Ascension	09h18m37.9s
Moon Declination	+15°41'54.9"
Moon Semi-Diameter	15'18.4"
Moon Equatorial Horizontal Parallax	0°56'10.4"
ΔT	17.8 s

Eclipse season

This eclipse is part of an eclipse season, a period, roughly every six months, when eclipses occur. Only two eclipse seasons occur each year, and each season lasts about 35 days and repeats just short of six months 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. The first and last eclipse in this sequence is separated by one synodic month.

July 26 Ascending node	August 10 Descending node	August 24 Ascending node

Penumbral lunar eclipse Lunar Saros 108	Annular solar eclipse Solar Saros 134	Penumbral lunar eclipse Lunar Saros 146

Related eclipses

Eclipses in 1915

A penumbral lunar eclipse on January 31.
An annular solar eclipse on February 14.
A penumbral lunar eclipse on March 1.
A penumbral lunar eclipse on July 26.An annular solar eclipse on August 10.
A penumbral lunar eclipse on August 24.

Metonic

Preceded by: Solar eclipse of October 22, 1911
Followed by: Solar eclipse of May 29, 1919

Tzolkinex

Preceded by: Solar eclipse of June 28, 1908
Followed by: Solar eclipse of September 21, 1922

Half-Saros

Preceded by: Lunar eclipse of August 4, 1906
Followed by: Lunar eclipse of August 14, 1924

Triad

Preceded by: Solar eclipse of October 9, 1828
Followed by: Solar eclipse of June 10, 2002