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M71 (Sge)
Click on the image for a larger version
| Date/Site: |
August 25th, 2011, Rifugio Monte Muro, Maurerberg, Southern Tyrol |
Exposure/
Filter: |
R: 3 x 600 seconds, G: 3 x 600 seconds, B: 3 x 600 seconds (-15°C) |
| Camera: |
SBIG ST10XME, CFW9 with SBIG LRGB-filters, AO-8 |
Optics/
Instrument: |
6"-Newton on Gemini 41 Observatory mount, RCC1 Coma-corrector |
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Focusing with Robofocus |
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Calibration, alignment and stacking: MaximDL 5.01,
Levels and curves: Photoshop CS |
Comet Garradd was just outside the field of view.
The animation, a crop of several widefield shots, shows the movement of the comet over two hours.
M71 and Komet Garradd, August 25th 2011 from 22:00 to 00:44
| Date/Site: |
August 25th, 2011, Rifugio Monte Muro, Maurerberg, Southern Tyrol |
Exposure/
Filter: |
11 x 3 minutes |
| Camera: |
Canon EOS 1000Da |
Optics/
Instrument: |
Canon EF 200mm f/2,8-lens |
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Alignment: PixInsight 1.7,
Levels, curves and animation: Photoshop CS |
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© Friedhelm Hübner, last revision: 03.12.2023