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Welcome to the University of Michigan – Dearborn
Observatory
Founded 2007
The Summer Sky July 16, 2010
• Locate and view Saturn in the northwest sky.
• Mars and Venus are near Saturn in the sky.
• Pluto is found (against the stars of the Milky Way) in the southern sky.
• Learn how to find the Summer Triangle and other features of the summer sky.
The Summer Triangle
Bright stars Altair, Deneb, and Vega
The Summer Triangle
• Identifying the Summer Triangle will help you locate other constellations in the summer sky.
• Altair, Deneb and Vega are the bright stars at the corners of the triangle.
• Vega is the brightest star of the summer sky.• The constellations Aquila (the eagle), Cygnus
(the swan), and Lyra (the harp), respectively, contain the corner stars.
The Summer Triangle
Bright stars Altair, Deneb, and Vega
The Summer Triangle
• Delphinus is just southeast of the triangle, between Altair and Deneb. Look for the “arch of the Dolphin.”
• Hercules (look for the keystone) is just west of Lyra.
The Summer Triangle
Bright stars Altair, Deneb, and Vega
The Summer Sky
• Find the Big Dipper. Follow the handle to Arcturus (“arc to Arturus”), which is the brightest star in Bootes.
• From Arcturus, “Spike to Spica,” the brightest star in Virgo.
From the Big Dipper, “arc to Arturus”, the brightest star in Bootes.From Arcturus, “Spike to Spica,” the brightest star in Virgo.
Tonight’s Sky in Quadrants
NW E S
NW sky : Saturn, Mars, Venus; Hercules, Bootes, Big Dipper
Saturn
Mars
Venus
SW sky: Saturn, Mars, Pluto; Virgo, Corona Borealis
Saturn
Mars
Pluto
SE sky: Milky Way, Pluto; Ophiucus, Capricorn
Pluto
NE sky: Summer Triangle, Andromeda, Jupiter, Uranus
JupiterUranus
The Summer Triangle
• Can you identify the Summer Triangle without seeing the lines?