A total eclipse of the Sun occurs on Sunday 21 December, 2234 UT, with maximum eclipse at 12:37 UT. A dramatic total eclipse will plunge the Sun into darkness for 3 minutes and 42 seconds at maximum, creating an amazing spectacle for observers in a broad path up to 197 km wide.

The total eclipse lasts for 3 minutes and 42 seconds. Maximum eclipse is at 12:37:12 UT.

During this eclipse the Sun will be 0.542° in apparent diameter, 1.6% larger than average. The Moon will be at perigee, making it extremely large. At the start and end of the eclipse the Moon will be 0.557°, and at maximum eclipse 0.564°, which is 6.1% larger than average; hence it will cover the Sun, making this a total eclipse. The statistics page has information on the ranges of the sizes of the Sun and Moon.

Overview Map

This map sourced from NASA Goddard Space flight Center: GSFC Eclipse Web SiteGSFC Eclipse Web Site
The primary source of all the information on eclipses presented here at Hermit Eclipse. [NASA Goddard Space flight Center]
https://eclipse.gsfc.nasa.gov/eclipse.html
shows the visibility of the total solar eclipse. It also shows the broader area in which a partial eclipse will be seen. (Click on it for the full-sized version.)

Eclipse Season and Saros Series

This eclipse season contains 2 eclipses:

This is the 18th eclipse in solar Saros series 155.The surrounding eclipses in this Saros series are:

Eclipse Parameters

UT Date/time (max) 12:37:12 on 21 Dec UT TDT Date/time (max) 12:46:02 on 21 Dec TDT
Saros Series 155 Number in Series 17
Penumbral Magnitiude Central Magnitiude 1.0403
Gamma 0.7299 Path Width (km) 197
Delta T 8m50s Error ± 6m00s (95%)
Penumbral Duration Partial Duration
Total Duration 3m42s
Partial Rating Total Rating
Sun Distance 147229897 km (2.8%) Moon Distance 357522 km (2.2%)
Sun Diameter 0.542° Moon Diameter 0.557° - 0.564°
Apogee 06:44 on 9 Dec UT Perigee 00:57 on 22 Dec UT

Note that while all dates and times on this site (except where noted) are in UT, which is within a second of civil time, the dates and times shown in NASA's eclipse listingsGSFC Eclipse Web Site
The primary source of all the information on eclipses presented here at Hermit Eclipse. [NASA Goddard Space flight Center]
https://eclipse.gsfc.nasa.gov/eclipse.html
are in the TDT timescale.

The Sun and Moon distances are shown in km, and as a percentage of their minimum - maximum distances; hence 0% is the closest possible (Earth's perihelion, or the Moon's closest possible perigee) and 100% is the farthest (aphelion, the farthest apogee). The statistics page has information on the ranges of sizes of the Sun and Moon.

Data last updated: 2015-06-21 22:11:47 UTC.