OBSERVING September 2016 In This Section 42 Sky at a Glance 42 Northern Hemisphere Sky Chart 43 Binocular Highlight: City of a Million Stars 48 Celestial Calendar 48 Map Asteroid Shapes by Video 50 Two Good Asteroid Occultations Coming Up 52 Exploring the Solar System: Uranus Ascending Deep-Sky Wonders: Lonely Hearts of Summer 44 Planetary Almanac 45 Northern Hemisphere's Sky: Shoreless Seas, Stars Uncounted 54 46 Sun, Moon & Planets: Parting Ways Additional Observing Stories: 22 Observing Through a Truly Large Telescope IMAGE: THE OBSERVATORIES OF THE CARNEGIE INSTITUTION FOR SCIENCE COLLECTION AT THE HUNTINGTON LIBRARY, SAN MARINO, CA. 30 Find Your Dawes Limit Workers transport the 100-inch mirror cell to Mount Wilson Observatory by truck, 1916; see page 22. SkyandTelescope.com September 2016 41http://www.SkyandTelescope.com