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08/02/11 – Ephemeris – The constellation of Aquila the eagle

August 2, 2011 Comments off

Note: this is  a repeat due to Internet problems for the July 25th program with one alteration.

Tuesday, August 2nd.  The sun rises at 6:29.  It’ll be up for 14 hours and 37 minutes, setting at 9:06.   The moon, 3 days past new, will set at 10:19 this evening.

The southernmost star in the Summer Triangle of three bright stars is Altair, high in the south southeast in the evening.  It’s in the head of the constellation Aquila the Eagle.  Altair is flanked by two stars, the eagle’s shoulders, and farther out are the wing tips.  Other stars to the lower right are in its body and a last three in its tail.  Near the tail binoculars will show a fuzzy spot that telescopes show as a compact star cluster, sometimes called the Wild Duck Cluster for its nearly triangular shape.  Aquila is flying northeastward through the Milky Way, where it is split in two by a cloud of gas and dust, the edges of which can be seen in binoculars.  According to mythology the Trojan boy Ganymede was taken to heaven at the behest of the god Zeus by this eagle.

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

Addendum

Finder chart for M11, the Wild Duck Cluster, Created using Stellarium.

Finder chart for M11, the Wild Duck Cluster, Created using Stellarium.