Messier 42 (Orion Nebula) from my backyard
The Orion Nebula, M42 (NGC 1976), lies in the constellation Orion and is one of the most spectacular and frequently imaged regions of the night sky. This vast emission nebula, glowing in shades of red and blue, is a stellar nursery where new stars are forming within swirling clouds of gas and dust, however even small telescopes or short exposures reveal remarkable detail and color.
I photographed this object three times with my DSLR camera roughly 20 years ago, during my early years in astrophotography, lastly in 2008.
The data calibration and registration were carried out using DeepSkyStacker, while the final image processing was completed in PixInsight


The images were taken with the following equipment:
- Date: 2008
- Location: Krefeld, Germany
- Telescope: Pentax 75
- Focal length [mm]: 500
- Focal ratio: 6.7
- Mount: Vixen GP-DX
- Camera: Canon 300Da
- Filter: OSC
- Exposure time [min]: 27
- Resolution: 4.77″/px
Another image of this object was captured in 2006 from my backyard. The data calibration and registration were performed in DeepSkyStacker, and the final image processing was completed in PixInsight.

The images were taken with the following equipment:
- Date: 2006
- Location: Krefeld, Germany
- Telescope: Pentax 75
- Focal length [mm]: 500
- Focal ratio: 6.7
- Mount: Vixen GP-DX
- Camera: Canon 300Da
- Filter: OSC
- Exposure time [min]: 19.5
- Resolution: 3.04″/px
My first successful images of this object were captured in 2005 from my backyard. The data calibration and registration were carried out using DeepSkyStacker, while the final image processing was completed in PixInsight.

The images were taken with the following equipment:
- Date: 2005
- Location: Krefeld, Germany
- Telescope: 8″ GSO Newton
- Focal length [mm]: 800
- Focal ratio: 4
- Mount: Vixen GP-DX
- Camera: Canon 300Da
- Filter: OSC
- Exposure time [min]: 12
- Resolution: 1.89″/px

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