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Sun and Moon, April 2015


The Sun


The length of daylight grows nearly 90 minutes during April.  By month’s end, the sun is in the sky for almost 14 hours in the Chicago area.  Now rising north of east and setting north of west, the sun’s daily arc across the sky grows longer each day with about 3 minutes added each day.  The blue area on the chart above shows the daylight during the month compared to the bell-shaped curve that indicates the length of daylight for the entire year.

The Moon

NASA Photo

Phase Date/Time Moonrise Moonset
Full Moon 04/04/15 (7:06 a.m.) 6:46 p.m. (04/03) 6:34 a.m.
Last Quarter 04/12/15 (10:44 p.m.) 2:11 a.m. 12:35 p.m.
New Moon 04/18/15 (11:57 a.m.) 6:07 a.m. 7:42 p.m.
First Quarter 04/25/15 (6:55 p.m.) 11:54 a.m. 2:05 a.m. (04/26)
Times are Central Daylight Time for Chicago, Illinois, from US Naval Observatory calculations. (For mjb)

Lunar Eclipse

Photo:  National Geographic

On the morning of April 4, there is a lunar eclipse, part of which is visible from the Chicago area.  The moon sets before the full eclipse occurs.  Here are the events of April 4 for Chicago:

For locations farther west, more eclipse is seen.  Observers California, Oregon and Washington can see the entire eclipse.

The Griffith Observatory’s (Los Angeles) link to a life stream of the eclipse beginning at 4 a.m. CDT:

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