Solar eclipse of July 20, 1925


An annular solar eclipse occurred at the Moon's ascending node of orbit between Monday, July 20 and Tuesday, July 21, 1925, with a magnitude of 0.9436. 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 about 8 hours after apogee, the Moon's apparent diameter was smaller.
Annularity was visible from northern part of Northland Region and the whole Kermadec Islands in New Zealand on July 21, and Rapa Iti in French Polynesia on July 20. A partial eclipse was visible for parts of Eastern Australia and Oceania.

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.
EventTime
First Penumbral External Contact1925 July 20 at 19:03:41.7 UTC
First Umbral External Contact1925 July 20 at 20:23:08.9 UTC
First Central Line1925 July 20 at 20:26:27.5 UTC
First Umbral Internal Contact1925 July 20 at 20:29:50.5 UTC
Ecliptic Conjunction1925 July 20 at 21:40:09.2 UTC
Greatest Duration1925 July 20 at 21:46:03.5 UTC
Greatest Eclipse1925 July 20 at 21:48:41.6 UTC
Equatorial Conjunction1925 July 20 at 21:57:08.7 UTC
Last Umbral Internal Contact1925 July 20 at 23:07:26.9 UTC
Last Central Line1925 July 20 at 23:10:49.8 UTC
Last Umbral External Contact1925 July 20 at 23:14:08.3 UTC
Last Penumbral External Contact1925 July 21 at 00:33:37.3 UTC

ParameterValue
Eclipse Magnitude0.94358
Eclipse Obscuration0.89035
Gamma−0.71927
Sun Right Ascension07h58m46.0s
Sun Declination+20°38'42.8"
Sun Semi-Diameter15'44.4"
Sun Equatorial Horizontal Parallax08.7"
Moon Right Ascension07h58m29.8s
Moon Declination+20°00'11.9"
Moon Semi-Diameter14'42.0"
Moon Equatorial Horizontal Parallax0°53'57.1"
ΔT23.7 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.
July 20
Ascending node 		August 4
Descending node
Annular solar eclipse
Solar Saros 125		Partial lunar eclipse
Lunar Saros 137

Related eclipses

Eclipses in 1925

Metonic

Tzolkinex

Half-Saros

Tritos

Solar Saros 125

Inex

Triad