I decided to reprocess some older data of the Orion nebula and surrounding area that was gathered in December 2023. This was some of the first data collected after my father gifted me a star tracker. The first image is the original stacked and processed image done in DSS(deep sky stacker) and Photoshop. Where as the second image was stacked and processed in Siril and Photoshop with newer techniques that I’ve learned in the last year. The Orion Nebula is one of my favorite subjects and I’m looking forward to collecting more data in the following years.

Original Orion Nebula details

Nikon D3500 stock

Sigma 135mm Lens

ISO 800

f/2.8

30 light frames @120 seconds each

10 dark frames

20 flat frames

iOptron SkyGuider (https://www.ioptron.com/product-p/3500.htm)

Reprocessed image details

Nikon D3500 stock

Sigma 135mm Lens

ISO 800f/2.8

30 light frames @120 seconds each

10 dark frames

20 flat frames

20 bias frames – pulled from another session as i did not know the full benefit of including all calibration frames at the time.

iOptron SkyGuider (https://www.ioptron.com/product-p/3500.htm)

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