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 (ring). 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 (on December 20, 2085, at 14:40 UTC), 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.

+December 16, 2085 Solar Eclipse Times Event Time (UTC) First Penumbral External Contact 2085 December 16 at 19:52:02.9 UTC First Umbral External Contact 2085 December 16 at 20:52:55.2 UTC First Central Line 2085 December 16 at 20:53:32.4 UTC Greatest Duration 2085 December 16 at 20:53:32.4 UTC First Umbral Internal Contact 2085 December 16 at 20:54:09.7 UTC First Penumbral Internal Contact 2085 December 16 at 21:59:46.9 UTC Greatest Eclipse 2085 December 16 at 22:37:47.8 UTC Equatorial Conjunction 2085 December 16 at 22:39:48.7 UTC Ecliptic Conjunction 2085 December 16 at 22:40:48.4 UTC Last Penumbral Internal Contact 2085 December 16 at 23:15:46.8 UTC Last Umbral Internal Contact 2085 December 17 at 00:21:26.6 UTC Last Central Line 2085 December 17 at 00:22:01.1 UTC Last Umbral External Contact 2085 December 17 at 00:22:35.6 UTC Last Penumbral External Contact 2085 December 17 at 01:23:25.8 UTC

+December 16, 2085 Solar Eclipse Parameters Parameter Value Eclipse Magnitude 0.99714 Eclipse Obscuration 0.99428 Gamma 0.27864 Sun Right Ascension 17h41m09.8s Sun Declination -23°21'25.3" Sun Semi-Diameter 16'15.0" Sun Equatorial Horizontal Parallax 08.9" Moon Right Ascension 17h41m05.1s Moon Declination -23°05'11.3" Moon Semi-Diameter 15'57.1" Moon Equatorial Horizontal Parallax 0°58'32.5" ΔT 110.5 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 December 2085 December 1Descending node (full moon) December 16Ascending node (new moon) Penumbral lunar eclipseLunar Saros 117 Annular solar eclipseSolar Saros 143

Related eclipses Eclipses in 2085 A penumbral lunar eclipse on January 10. A penumbral lunar eclipse on June 8. An annular solar eclipse on June 22. A penumbral lunar eclipse on July 7. A penumbral lunar eclipse on December 1. An annular solar eclipse on December 16.

Metonic Preceded by: Solar eclipse of February 27, 2082 Followed by: Solar eclipse of October 4, 2089

Tzolkinex Preceded by: Solar eclipse of November 4, 2078 Followed by: Solar eclipse of January 27, 2093

Half-Saros Preceded by: Lunar eclipse of December 10, 2076 Followed by: Lunar eclipse of December 21, 2094

Tritos Preceded by: Solar eclipse of January 16, 2075 Followed by: Solar eclipse of November 15, 2096

Solar Saros 143 Preceded by: Solar eclipse of December 6, 2067 Followed by: Solar eclipse of December 29, 2103

Inex Preceded by: Solar eclipse of January 5, 2057 Followed by: Solar eclipse of November 27, 2114

Triad Preceded by: Solar eclipse of February 16, 1999 Followed by: Solar eclipse of October 17, 2172

Solar eclipses of 2083–2087

Saros 143

Metonic series

Tritos series

Inex series

Notes

References