100 x 300" ISO/Gain: 120 - ZWO ASI294MM PRO + Oiii
70 x 30" ISO/Gain: 100 - ZWO ASI2600MC DUO
Blue zoneLight Pollution:
Barnaul, Russia
Aug 29th, 2025
15 h 35 m
2285
43
Three nights of shooting. Stars in RGB + background in Ha + Oiii. Applied a coloring method where the color depends on the brightness. Therefore, there are more than two colors in the background.
For example, take the hydrogen channel. Everything there is red. You can create a mask that isolates the brightest red tones and change their color. In this photo, yellow has been added to the brightest red areas. The same applies to the oxygen channel.
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