Observing podcast: Open cluster NGC 7261, globular cluster 47 Tucanae, and Bond's Galaxy
October 7-14, 2010: Open cluster NGC 7261 makes a nice target for beginning observers, while globular cluster 47 Tucanae and Bond's Galaxy provide nice targets for telescope owners.
October 7, 2010
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 Southern constellation Tucana is probably best known as the home of the Small Magellanic Cloud, one of the satellite galaxies of the Milky Way. But Tucana also hosts another famous object that shines thousands of lights, like a magnificent, oversized diamond in the sky: the globular cluster 47 Tucanae. More popularly known as 47 Tuc, it is surpassed in size and brightness by only one other globular cluster, Omega Centauri.
Photo by ESO
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 October 7-14, 2010
Naked eye: Open cluster NGC 7261
Small telescope: Globular cluster 47 Tucanae
8-inch or larger telescope: Bond's Galaxy
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