This Week's Sky at a Glance - What’s Up Tonight? - SkyandTelescope.com - http://www.skyandtelescope.com/letsgo...
"Look west after sunset near the horizon. Binoculars may be needed to pick Comet PanSTARRS out of the bright sky. Look too early and the sky will be too bright; too late and the comet will be too low. On the altitude scale at left, 10° is about the width of your fist held at arm's length." - Keith Pelczarski
Ooh. - Stephen Mack