Total Lunar Eclipse

Waimea, Hawaii—Hawaii Fans of Keck Observatory are in prime position to view a total lunar eclipse tonight—one of two expected this year.

After the full moon rises at sunset, the eclipse will begin just 11 minutes later, at 6:53 pm HST. The partial phase will begin at about 7:53 pm making the moon appear red or black depending on atmospheric conditions, as the moon travels into the shadow of Earth. The total eclipse starts at 9:07 pm, at this rare juxtaposition between the Sun, Earth and Moon, at which point the moon will be very dark. At 10:25, the moon will leave the shadow of the Earth and begin to lighten.

The gusty trade winds are bringing drier than normal air and quickly blowing away most clouds, increasing the chance of good viewing. Leeward locations are best.

The next total lunar eclipse will come on the evening of October 7th, with the partial phase starting at 11:14 pm HST and the total eclipse at 12:25 am on October 8th.

Check out this great video by Michael Zeiler for more information about the ecslipe: http://bit.ly/1hyML4m

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The sky is ready for MOSFIRE and NIRC2-NGS. Our observers from KECK/UCSC and CIT are also ready. Sun set 06:37:00pm rise 06:31:00am
Keck 1 MOSFIRE is scheduled with CIT observers. Keck 2 NIRC2-LGS is scheduled for UH observers. Sun set 06:37:00pm rise 06:32:00am
We are setting up MOSFIRE on Keck 1 for CIT observers, NIRC2-LGS on Keck 2 for UH observers. Sun set 06:37:00pm rise 06:32:00am
.@LindaLy79 Excellent question! Here is the best way to know: mkwc.ifa.hawaii.edu. It's dedicated just to Mauna Kea weather
CIT observers will work with MOSFIRE tonight. And UCI observers will work with DEIMOS. Sun set 06:36:00pm rise 06:33:00am