m33 Triangulum Galaxy

[paul mc c]

Just over 5 hours of 120 sec subs ,flats,darks and bias.

102ed 533mc pro with UVir filter.

[tooth_dr]

Great detail in this Paul, the 533 is a great camera in your very capable hands. 

[paul mc c]

24 minutes ago, tooth_dr said:

Great detail in this Paul, the 533 is a great camera in your very capable hands. 

Cheers mate,means a lot coming from you...still wet round the ears but slowly getting there.

[ollypenrice]

Yes, good detail. Blues are tending towards magenta on my screen, suggesting a lack of green signal.

Olly

[AstroMuni]

14 hours ago, paul mc c said:

Just over 5 hours of 120 sec subs ,flats,darks and bias.

Great image and as Olly said, it does look bluish on my screen too. I notice you have taken darks too even though you used the 533. Do you find that makes a difference to your final image?

[paul mc c]

39 minutes ago, AstroMuni said:

Great image and as Olly said, it does look bluish on my screen too. I notice you have taken darks too even though you used the 533. Do you find that makes a difference to your final image?

Actually never not used darks, i have a dark library so i just use masters as a routine.

[paul mc c]

14 hours ago, ollypenrice said:

Yes, good detail. Blues are tending towards magenta on my screen, suggesting a lack of green signal.

Olly

Done a bit of tweaking and took your advice Olly. Maybe a bit better....

[ollypenrice]

1 hour ago, paul mc c said:

Done a bit of tweaking and took your advice Olly. Maybe a bit better....

The magenta is still there for me. I found that altering the hue to minus twelve in the blues was a one-cklick fix:

Olly

 

[ONIKKINEN]

Great M33! Do agree with the magenta thing though, but that could also be just the chromatic aberration that makes the image appear more magenta than it really is when the stars grab ones attention, but probably a little bit too magenta still overall.

How did you colour calibrate the image? I recommend photometric color calibration in Siril (and an SCNR green if necessary) or the manual color calibration with a chosen white area. You would have to know which star is roughly white to do that accurately though, sometimes calibrating on the core of a galaxy gets ok results also.