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Ring-Nebel / M57
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Aufnahmedaten
Object.................: M57
Optics / Telescope.....: C11 focal length, f/ratio..: 1764m, f/6.3 (Alan Gee) Total exposure time....: 26 min. Film / CCD.............: ST2000ME Guiding................: Self-guided Date & location........: Spicheren / France Author.................: Sebastian Voltmer Comments...............: L: 20min, R: 2min, G: 2min, B: 2min |
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