M 101 |
Technical Data |
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Optics |
Takahashi TOA-150 refractor (D=150mm, F7.3) with 67 field flattener |
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Camera | modified Canon EOS 5DII | |
Tracking | Takahashi EM-400 mount, 7cm/F8 guide scope, QHY5 CCD camera autoguiding with PHD guiding | |
Exposure |
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Time | 2011/02/01,02,03, 2012/03/17 | |
Location | Tataka, Yushan National Park, Taiwan (2011) Mt. Ho-Huan, Taiwan (2012) |
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Note |
Images stacked in DeepSkyStacker and mosaicked with Registar. Final processing in Photoshop. |
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Larger Images | high resolution (1.8 MB) |
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There are many distant galaxies (small yellowish dots) visible in the high-resolution image. |