Solar eclipse of December 16, 2085


An annular solar eclipse will occur at the Moon's ascending node of orbit between Sunday, December 16 and Monday, December 17, 2085, with a magnitude of 0.9971. 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 3.7 days before perigee, the Moon's apparent diameter will be larger.
The path of annularity will be visible from parts of Micronesia and southwestern Mexico. A partial solar eclipse will also be visible for parts of northern Australia, Oceania, Hawaii, and western North America.

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 Contact2085 December 16 at 19:52:02.9 UTC
First Umbral External Contact2085 December 16 at 20:52:55.2 UTC
First Central Line2085 December 16 at 20:53:32.4 UTC
Greatest Duration2085 December 16 at 20:53:32.4 UTC
First Umbral Internal Contact2085 December 16 at 20:54:09.7 UTC
First Penumbral Internal Contact2085 December 16 at 21:59:46.9 UTC
Greatest Eclipse2085 December 16 at 22:37:47.8 UTC
Equatorial Conjunction2085 December 16 at 22:39:48.7 UTC
Ecliptic Conjunction2085 December 16 at 22:40:48.4 UTC
Last Penumbral Internal Contact2085 December 16 at 23:15:46.8 UTC
Last Umbral Internal Contact2085 December 17 at 00:21:26.6 UTC
Last Central Line2085 December 17 at 00:22:01.1 UTC
Last Umbral External Contact2085 December 17 at 00:22:35.6 UTC
Last Penumbral External Contact2085 December 17 at 01:23:25.8 UTC

ParameterValue
Eclipse Magnitude0.99714
Eclipse Obscuration0.99428
Gamma0.27864
Sun Right Ascension17h41m09.8s
Sun Declination-23°21'25.3"
Sun Semi-Diameter16'15.0"
Sun Equatorial Horizontal Parallax08.9"
Moon Right Ascension17h41m05.1s
Moon Declination-23°05'11.3"
Moon Semi-Diameter15'57.1"
Moon Equatorial Horizontal Parallax0°58'32.5"
ΔT110.5 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.
December 1
Descending node
December 16
Ascending node
Penumbral lunar eclipse
Lunar Saros 117		Annular solar eclipse
Solar Saros 143

Related eclipses

Eclipses in 2085

Metonic

Tzolkinex

Half-Saros

Tritos

Solar Saros 143

Inex

Triad