Two planetary nebulae in Centaurus and Copeland’s Septet
April 19–26, 2012: The Blue Planetary (NGC 3918) in Centaurus offers small-telescope owners a nice view, while large-telescope owners can seek out the planetary nebula NGC 3918 in Centaurus and Copeland's Septet in Leo.
April 19, 2012
Each week, Astronomy magazine Senior Editor Michael E. Bakich, a master at explaining how to observe, posts a podcast about three or more objects or events you can see in the sky.
This week's podcast features two planetary nebulae in Centaurus. The small-telescope target, the Blue Planetary (NGC 3918), lies 3.6° west-northwest of magnitude 2.8 Delta (δ) Crucis. The large-scope object, NGC 3699, sits 0.7° southwest of the magnitude 5.0 double star Omicron (ο) Centauri.
Photo by Astronomy: Roen Kelly
Targets for April 19–26, 2012
Small telescope: The Blue Planetary (NGC 3918)
Large telescope: Planetary nebula NGC 3699
Large telescope: Copeland's Septet
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