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Abell 2151 (Her)
Click on the image for a larger version
| Date/Site: |
July 13th and 15th and August 6th, 2010, AAR-observatory in Presberg |
Exposure/
Filter: |
LRGB: each 3 x 600 seconds (-15°C) |
| Camera: |
SBIG ST10XME, CFW9 with SBIG LRGB-filters, AO-8, RCC1 coma-corrector |
Optics/
Instrument: |
26cm-Newton on Gemini 41 Observatory |
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Calibration, deblooming, registration and stacking: MaximDL 5,
gradient removal, denoising, LRGB-integration, stretching and curves: Pixinsight 1.8 |
Only three frames for each RGB-channel and luminance were the meager result of hard work during three nights in July and August 2010. And the frames were not dithered because guiding was on the limit anyhow. So I needed three years before I returned to the data to produce this picture.
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© Friedhelm Hübner, last revision: 03.12.2023