Archive for July 21, 2014

07/21/2014 – Ephemeris – The celestial eagle: Aquila

July 21, 2014 1 comment

Ephemeris for Monday, July 21st.  Today the sun will be up for 15 hours and 2 minutes, setting at 9:19.   The moon, 3 days past last quarter, will rise at 2:52 tomorrow morning.  Tomorrow the sun will rise at 6:18.

Aquila the eagle is a constellation that lies in the Milky Way.  It’s in the southeastern sky as it gets dark.  Its brightest star, Altair is one of the stars of the Summer Triangle, a group of three bright stars dominating the eastern sky in the evening now.  Altair, in the head of the eagle, is flanked by two slightly dimmer stars, the shoulders of the eagle.  The eagle is flying northeastward through the Milky Way.  Its wings are seen in the wing tip stars. A curved group of stars to the lower right of Altair is its tail.  Within Aquila the Milky Way shows many dark clouds as part of the Great Rift that splits it here.  The other summer bird is Cygnus the swan above and left of Aquila, flying in the opposite direction.

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


The constellations Lyra, Cygnus and Aquila

Deneb with the other stars and constellations in the Summer Triangle. Created using Stellarium.