Timezone / Date

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Accuracy

Due to the erratic rotation of the Earth, the time and location of the eclipse cannot be forecast perfectly. This eclipse's time is estimated to be accurate ± 1h23m (with 95% confidence). This equates to an error in longitude of ± 20 degrees, or around ± 2284 km (1419 miles) at the latitude of greatest eclipse.

A total eclipse of the Moon occurred on 21 April, 1690 BC UT Old Style, with maximum eclipse at 05:06 UT. The Moon was plunged into darkness for 1 hour and 13 minutes, in a deep total eclipse which saw the Moon 25% of its diameter inside the Earth's umbral shadow. The visual effect of this depends on the state of the Earth's atmosphere, but the Moon may have been stained a deep red colour. The partial eclipse lasted for 3 hours and 33 minutes in total.

The penumbral eclipse lasted for 5 hours and 40 minutes. The partial eclipse lasted for 3 hours and 33 minutes. The total eclipse lasted for 1 hour and 13 minutes. Maximum eclipse was at 05:06:44 UT.

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 eclipse. (Click on it for the full-sized version.)

Eclipse Season and Saros Series

This eclipse season contains 2 eclipses:

This eclipse belongs to lunar Saros series 14.The surrounding eclipses in this Saros series are:

This Saros series, lunar Saros series 14, is linked to solar Saros series 21. The nearest partner eclipses in that series are:

Eclipse Parameters

UT Date/time (max) 05:06:44 on 21 Apr UT TDT Date/time (max) 16:00:07 on 21 Apr TDT
Saros Series 14 Number in Series
Penumbral Magnitiude 2.2609 Central Magnitiude 1.2498
Gamma 0.3284 Path Width (km)
Delta T 10h53m Error ± 1h23m (95%)
Penumbral Duration 5h40m Partial Duration 3h33m
Total Duration 1h13m
Partial Rating Total Rating

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.

Data last updated: 2015-06-21 22:11:39 UTC.