October 2016 Digital Extra B ON US WE B CONTE NT ã Eta Carinae Photo Gallery Watch the newest ideas about this explosive star unfold in 3D. ã Observing Guides Surpasses Expectations Successful first results pave the way for a future spacebased gravitational wave detector. Read the latest on the status of light pollution across the globe. TOUR THE SKY - ASTRONOMY PODCASTS ã Astronomy Almanac New and improved: Find basic astronomical data at your fingertips. (Website registration required.) ã LISA Pathfinder ã Light Pollution Report E XPLORE O UR WE B S ITE! Find expert advice for spotting asteroids, exploring planets, and spotting double stars. Image by Bill Mark ã DIY Astronomy S&T's Celestiall Globe Here are some projects for the handy and celestial minded. Enjoy a state-ofthe-art representation tation of the entire night ht sky on a 12-inch sphere. ere. NEW The S&T Celestiall Globe Gl b $99.95 $99 95 plus l shipping hi i OBSERVING HIGHLIGHTS Sign up for Newsletters and AstroAlerts THIS WEEK'S Sky at a Glance D OWNLOAD O UR APP S For Droid D I G ITAL B AC K I S S UE S: July, August, and September October 2016 sky & telescope Find us on Facebook & Twitterhttp://www.skyandtelescope.com?utm_source=gd&utm_medium=di&utm_campaign=gdstdioctober16/ http://www.skyandtelescope.com/ http://www.skyandtelescope.com/skytel http://www.skyandtelescope.com/astronomy-pictures?utm_source=GD&utm_medium=di&utm_campaign=GDstdiOctober16 http://www.skyandtelescope.com/sky-and-telescope-magazine/beyond-the-printed-page/a-3d-view-of-eta-carinae/?utm_source=GD&utm_medium=di&utm_campaign=GDstdiOctober16 http://www.skyandtelescope.com/observing/celestial-objects-to-watch/skyandtelescope-coms-almanac/?utm_source=GD&utm_medium=di&utm_campaign=GDstdiOctober16 http://www.skyandtelescope.com/astronomy-news/update-on-lisa-pathfinder/?utm_source=GD&utm_medium=di&utm_campaign=GDstdiOctober16 http://www.skyandtelescope.com/celestial-objects-observe/?utm_source=GD&utm_medium=di&utm_campaign=GDstdiOctober16 http://www.shopatsky.com/sky-and-telescopes-celestial-globe?utm_source=GD&utm_medium=di&utm_campaign=GDstdiOctober16 http://www.skyandtelescope.com/astronomy-news/measuring-the-impacts-of-light-pollution/?utm_source=GD&utm_medium=di&utm_campaign=GDstdiOctober16 http://www.skyandtelescope.com/astronomy-equipment/equipment-diy/?utm_source=GD&utm_medium=di&utm_campaign=GDstdiOctober16 http://www.skyandtelescope.com/astronomy-podcasts/?utm_source=GD&utm_medium=di&utm_campaign=GDstdiOctober16 http://www.skyandtelescope.com/astronomy-news/observing-news?utm_source=GD&utm_medium=di&utm_campaign=GDstdiOctober16 http://www.skyandtelescope.com/sky-and-stargazing-apps/?utm_source=GD&utm_medium=di&utm_campaign=GDstdiOctober16 http://www.skyandtelescope.com/observing/sky-at-a-glance/?utm_source=GD&utm_medium=di&utm_campaign=GDstdiOctober16 http://www.shopatsky.com/autumn-deep-sky-observing-projects-download?utm_source=GD&utm_medium=di&utm_campaign=GDstdiOctober16 https://itunes.apple.com/us/app/jupitermoons/id577009038?utm_source=GD&utm_medium=di&utm_campaign=GDstdiOctober16 https://itunes.apple.com/us/app/saturnmoons/id606938707?utm_source=GD&utm_medium=di&utm_campaign=GDstdiOctober16 https://itunes.apple.com/us/app/skyweek-plus/id541708339?utm_source=GD&utm_medium=di&utm_campaign=GDstdiOctober16 https://play.google.com/store/apps/details?id=com.skyandtelescope.skyweek12&hl=en?utm_source=GD&utm_medium=di&utm_campaign=GDstdiOctober16 https://www.facebook.com/pages/Sky-Telescope-Magazine/66274830772?utm_source=GD&utm_medium=di&utm_campaign=GDstdiOctober16 https://www.facebook.com/pages/Sky-Telescope-Magazine/66274830772?utm_source=GD&utm_medium=di&utm_campaign=GDstdiOctober16 http://twitter.com/#!/SkyandTelescope?utm_source=GD&utm_medium=di&utm_campaign=GDstdiOctober16