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I tried it on some of my images and got decent looking results :thumbsup: And I can confirm that sometimes there's a green cast in ST after Wipe (even after adjusting for dark anomalies) which isn't visible in Graxpert's diagnostic stretch. Interesting... Did you crop your broadband and narrowband s...

Hi Carles,

I will certainly try! Sometimes I have difficulties to get a flat field. That might be an option.

Did you reduce 'Gradient aggressiveness' to 0 in Wipe? There shouldn't be anything left to wipe, right?

Regards
Stefan

Hi Carles, awesome result, can't believe it's from Bortle 8 :bow-yellow: Especially the reflection nebula is remarkable. "pre-processed" for background extraction on GraXpert Does Graxpert work on linear data or did you have to stretch it for background extraction and work without tracking in ST? Re...

Thanks, Ron! As for the stars - it's kind of odd, because I look at your image and the mass of Milky Way stars don't bother me. It must be something about staring at them all up close and personal all the way through several rounds of processing that makes them seem more problematic. I get what you ...

Continuing last year's low dec challenge (https://forum.startools.org/viewtopic.php?f=11&t=2848)...I pointed the scope at M 20, not rising higher than 18° from my location. https://cdn.astrobin.com/thumbs/ZFOP5L597aiT_16536x0_ieTZ0INm.jpg Conditions haven't been easy but for being so close to the ho...

Hi Ron, that looks really good. Due to the high dynamic range it's a pretty tough target as far as I know. I haven't dared trying it, also because of the fact that the core is so bright it gives diffraction spikes with a Newt... I am bit surprised that HDR didn't have an impact on the core. Did you ...

Hi Dietmar, sorry for my late answer! :oops: Thanks for pointing out the purple cast. It's not particularly strong and as you said, many M 63 images look similar. But it's been my impression there could be a bit more differentiation of colors. How did you get your NGC 3718 so bright? Well, part of t...

You just have to love that galaxy. Amazing details, Dietmar :thumbsup: . And a well tamed core! Did you use HDR? I have the impression that the galaxy has a slight purple color cast overall. In my experience the core is yellowish and the spiral arms have some blue in them. Maybe the channel alignmen...

Well done Looks effortless which means quite something with such a difficult target. I like the faint stuff of the galaxy, the details in its companion and the rotation of the galaxy.

Regards
Stefan

With the opportunity of some clear nights I revisited NGC 3178, a warped spiral galaxy with its companion NGC 3729 and the Hickson compact group #56. Really cool target but not so easy. Hoped to get more faint stuff around NGC 3718 but with some thin clouds still being around that hasn't been in the...