NGC 2903 in Leo, type Sb+

First light of my Artemis Art 4021 CCD camera - many thanks to my friends Liubomir Iliev and Valery Genkov (both of them professional astronomers) for their invaluable help.

FOV with my setup was 7 x 7 arcmin , that is why not entire galaxy was captured in this frame.

1. Unprocessed single frame

2. Calibrate, combine, histogram, curves, crop

 

3. Real unsharp mask technique applied

4. An experiment with SAOImage ds9 software

Staircase colours

4. Imaging setup - Artemis Art 4021 CCD on 24" Zeiss Cassegrain @ f/12.5

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