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Hohe Wand, 25. April 2007, 23:00
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The Great Globular Cluster in Hercules (M13 or NGC 6205) is a
globular cluster in the Hercules constellation, 25000ly (light years)
away from Earth. With a diameter of about 145ly, M13 is composed of
serveral hundred thousand stars, the brightest of which is the
variable star V11 with an apparent magnitude of 11.95. |
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| | Instrument: | Pentax 75 SDHF | | | Camera: | Canon 20D (modified) | | | Mount: | Vixen GP-DX | | | Exposure: | 46 minutes total at ISO800 (15x2min + 4x4 min) w/ IDAS LPS-P2 | | | Conditions: | average seeing, very bright moonlight | | | Image Processing: | Iris, Photoshop CS2 |
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