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04/02/2015 – Ephemeris – Information on Saturday morning’s lunar eclipse

April 2, 2015

Ephemeris for Thursday, April 2nd.  The Sun will rise at 7:22.  It’ll be up for 12 hours and 49 minutes, setting at 8:11.  The Moon, 2 days before full, will set at 6:56 tomorrow morning.

Saturday morning we will be able to witness the start of a lunar eclipse.  This is the third of four consecutive total lunar eclipses visible from parts of North America.  The last and best of them will occur on the evening of September 27th.  The totality of Saturday’s eclipse will only last under 5 minutes, but even that will not be visible from here.  The partial phase will begin at 6:15 a.m. with the Moon low in the west-southwest.  The Moon will progress about half way into the Earth’s shadow by the time it sets at 7:24 a.m.   This will be shortly after the 7:17 a.m. sunrise.  It is possible to see the eclipse in its entirety via the Internet.  Search for Griffith Observatory.  The will have a live feed of the eclipse if it’s clear in Los Angeles.

Update:  The URL for the LiveStream from Griffith Observatory is http://new.livestream.com/GriffithObservatoryTV/LunarEclipseApril2015

Times are for the Traverse City/Interlochen area of Michigan.  They may be different for your location.


Eclipse diagram

This is an annotated clip of the NASA Eclipse diagram. Click on it to show the entire pdf file.

In the interval P1 to U1 and U4 to P4 the Moon will be only in the Earth’s penumbra, where the Sun’s light is only partially blocked.  However for about a half hour before U1 and after U4 the Moon’s edge closest to the umbra will appear dusky.

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