Podcast: Night-sky targets for July 31-August 7, 2009
This week, Small Sagittarius Star Cloud makes a great object for beginning observers, while the open cluster NGC 6738 and the dark nebula Bernes 157 provide nice targets for telescope owners.
July 30, 2009
Each week, Astronomy magazine Senior Editor Michael Bakich, a master at explaining how to observe, posts a podcast about three objects or events you can see in the sky.
The Small Sagittarius Star Cloud spans nearly 2° and measures 0.6° wide, so it's not likely that anyone would confuse it for a comet. Still, Messier cataloged this region, and we now refer to it as M24.
Photo by Astronomy: Roen Kelly
In each episode, Michael highlights:
- One object you can see without any optical aid
- One object you can see with a small (4-inch) telescope
- One object you can see with at least an 8-inch telescope
Targets for July 31-August 7, 2009
Naked eye: Small Sagittarius Star Cloud
Small telescope: Open cluster NGC 6738
8-inch or larger telescope: Dark nebula Bernes 157
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