Full resolution, full FOV and more details: https://astro.sleeman.at/images/25
- Date / Location 2025
- Telescope AG Optical iDK 14.5
- Camera Moravian Instruments G4-16000
- Filters LRGB & Ha
- Integration 58.0 hours
Facts:
- Object: Messier 51 (Whirlpool Galaxy) + NGC 5195
- Object type: Interacting spiral galaxy pair
- Constellation: Canes Venatici
- Distance: ~23 million light-years
Exposure Times:
- Luminance (UV/IR Cut): 17h (200 x 300s)
- Red: 8h (100 x 300s)
- Green: 8h (100 x 300s)
- Blue: 8h (100 x 300s)
- Hα: 17h (200 x 300s)
- Total integration: 58h
Processing Workflow:
I prepare the masters in Pix (BX, ColorCalibration, Continuum Substraction, HT-stretches and maybe SX or NX.. for galaxies I rarely use SX though).
The rest is usually all done in PhotoShop (blending the stretches together, HighPass-Filter as Soft-Light layer, Color balance/saturation, etc.)
by MichaelCR970