Solar eclipse of April 25, 1865


A total solar eclipse occurred at the Moon's descending node of orbit on Tuesday, April 25, 1865, with a magnitude of 1.0584. 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 1.2 days after perigee, the Moon's apparent diameter was larger.
The path of totality was visible from parts of modern-day Chile, Argentina, Uruguay, Brazil, Angola, Zambia, and extreme northwestern Mozambique. A partial solar eclipse was also visible for much of South America, Antarctica, and Africa.

Observations

The total eclipse was also witnessed by the passengers and crew of the SS Great Britain, passing the coastline of Brazil en route from Australia to England; they were able to observe stars in the daytime.

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 Contact1865 April 25 at 11:37:22.8 UTC
First Umbral External Contact1865 April 25 at 12:36:28.9 UTC
First Central Line1865 April 25 at 12:37:48.3 UTC
First Umbral Internal Contact1865 April 25 at 12:39:07.9 UTC
Equatorial Conjunction1865 April 25 at 13:56:13.5 UTC
Greatest Eclipse1865 April 25 at 14:08:34.2 UTC
Greatest Duration1865 April 25 at 14:10:32.0 UTC
Ecliptic Conjunction1865 April 25 at 14:13:31.6 UTC
Last Umbral Internal Contact1865 April 25 at 15:38:11.0 UTC
Last Central Line1865 April 25 at 15:39:29.2 UTC
Last Umbral External Contact1865 April 25 at 15:40:47.2 UTC
Last Penumbral External Contact1865 April 25 at 16:39:54.1 UTC

ParameterValue
Eclipse Magnitude1.05844
Eclipse Obscuration1.12029
Gamma−0.48262
Sun Right Ascension02h12m14.0s
Sun Declination+13°18'55.3"
Sun Semi-Diameter15'53.1"
Sun Equatorial Horizontal Parallax08.7"
Moon Right Ascension02h12m42.7s
Moon Declination+12°50'29.9"
Moon Semi-Diameter16'34.0"
Moon Equatorial Horizontal Parallax1°00'47.9"
ΔT5.6 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.
April 11
Ascending node
April 25
Descending node
Partial lunar eclipse
Lunar Saros 110		Total solar eclipse
Solar Saros 136

Related eclipses

Eclipses in 1865

Metonic

Tzolkinex

Half-Saros

Tritos

Solar Saros 136

Inex

Triad

Solar eclipses of 1862–1866

The partial solar eclipses on June 27, 1862 and December 21, 1862 occur in the previous lunar year eclipse set, and the partial solar eclipse on March 16, 1866 occurs in the next lunar year eclipse set.

Metonic series

All eclipses in this table occur at the Moon's ascending node.