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M97 (UMa)
Click on the image for a larger version
| Date/Site: |
16. April, 3. and 23. May 2014, AAR-observatory in Presberg |
Exposure/
Filter: |
L: 6 x 300
R: 9 x 300
G: 7 x 300
B: 11 x 300 seconds
Hα: 6 x 600, seconds
O3: 12 x 600 seconds (-20°C) |
| Camera: |
QSI 632 with SBIG and Baader-filters,
Guiding off-axis with Lodestar |
Optics/
Instrument: |
40cm f5 Newton on AP1200 |
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Focusing with MicroTouch and FocusMax,
image acquisition: CCD-Commander and MaximDL 5,
calibration: MaximDL 5,
processing: PixInsight 1.8 |
The main task was to capture the outer O3-shell.
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© Friedhelm Hübner, last revision: 03.12.2023