Timezone / Date

You have not selected a timezone for eclipse timings, so all times are shown in UT (essentially GMT).

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 ± 38m26s (with 95% confidence). This equates to an error in longitude of ± 9 degrees, or around ± 1004 km (624 miles) at the latitude of greatest eclipse.

A total eclipse of the Moon occurred on 31 May, 1246 BC UT Old Style, with maximum eclipse at 17:36 UT. A shallow total eclipse saw the Moon in relative darkness for 1 hour and 4 minutes. The Moon was 19% of its diameter into the Earth's umbral shadow, and should have been significantly darkened. The partial eclipse lasted for 3 hours and 23 minutes in total.

The penumbral eclipse lasted for 5 hours and 23 minutes. The partial eclipse lasted for 3 hours and 23 minutes. The total eclipse lasted for 1 hour and 4 minutes. Maximum eclipse was at 17:36:10 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 was the 40th eclipse in lunar Saros series 20.The surrounding eclipses in this Saros series are:

This Saros series, lunar Saros series 20, is linked to solar Saros series 27. The nearest partner eclipses in that series are:

Eclipse Parameters

UT Date/time (max) 17:36:10 on 31 May UT TDT Date/time (max) 01:54:31 on 1 Jun TDT
Saros Series 20 Number in Series 40
Penumbral Magnitiude 2.1662 Central Magnitiude 1.1909
Gamma -0.3702 Path Width (km)
Delta T 8h18m Error ± 38m26s (95%)
Penumbral Duration 5h23m Partial Duration 3h23m
Total Duration 1h04m
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. For this eclipse, this makes the date shown on this site different to NASA's date.

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