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Open cluster NGC 7790, the Cave Nebula, and spiral galaxy NGC 7184

September 22–29, 2011: Open cluster NGC 7790 in Cassiopeia offers small-telescope owners a nice view, while large-telescope owners can seek out the Cave Nebula in Cepheus and spiral galaxy NGC 7184 in Aquarius.

Cassiopeia
Magnitude 8.5 open cluster NGC 7790, this week's small-telescope target, lies 2.5° northwest of magnitude 2.3 Caph (Beta [β] Cassiopeiae).
Astronomy: Roen Kelly
Each week, Astronomy magazine Senior Editor Michael E. Bakich, a master at explaining how to observe, posts a podcast about three objects or events you can see in the sky.

Targets for September 22–29, 2011

Small telescope: Open cluster NGC 7790
Large telescope: The Cave Nebula (Sharples 2–155)
Large telescope: Spiral galaxy NGC 7184

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