Fix egg shaped stars in PixInsight!

[@VisibledarkAstro]

Please consider subscribing if you haven't already. Thank you and clear skies!

[@mxquattro]

Shawn, once again you save my bacon... this is great, thank you! -Bob

[@larry5488]

Thanks Shaun. Worked beautifully to fix eggs caused by some twisting in my image train (used GAME to select that areas I wanted to reshape).

[@YTMegiddo]

This works when stars are all in the same direction, but trying to fix an issue with backfocus (yes, I need to add a .5 mm or so) where stars elongated pointing to the center. They really aren't too bad, but I know they are there ;)

[@lepetitbaigneur9073]

this video was soooo helpful! All my stars were egg shaped and now are fixed! Thanks a lot VisibleDark!

[@denbergeron]

Great video. Thanks Shawn

[@VisibledarkAstro]

Try the new BlurXterminator 2. Works really well for correcting egg stars.

[@lachezarkrastev7123]

You definetely deserve more subscribers...

[@VisibledarkAstro]

I know! lol. Wish there was more. Thanks for watching! Clear skies.

[@DylanODonnell]

Why on EARTH would I ever need THIS? *cough* 🤫

[@VisibledarkAstro]

Haha! Did the giant egg catch your attention?

[@DylanODonnell]

@@VisibledarkAstro That's an egg? I thought it was Alnitak.

[@VisibledarkAstro]

Hilarious! Alnitak. 😂 Thanks for tuning in and leaving a comment. Appreciate that. Cheers!

[@tchallalemou5307]

Hentai eggs @Dylan O'Donnell.

[@yetiman5752]

Excellent Shan. Great short and simple explanation compare to the other. It works for me ;-)

[@daniellockhart8594]

When you went back to the motion blur tab, your angular adjustment was reset back to zero.

[@VisibledarkAstro]

Must have missed that. Had to start and stop recording of video a couple times. Might have reset it by accident. The general idea/how to is still there though.

[@daniellockhart8594]

@@VisibledarkAstro Great video, nonetheless.

[@pawepiechnik6248]

Could that work with a mask for those stars that are elongated only in corners ?

[@VisibledarkAstro]

I've not tried that but elongated stars in the corners can be solved with a field flattener and proper backfocus spacing. Clear skies!

[@whatmattersmost6725]

Shawn, please show how to fix halo in stars caused by NB filters please...Thank you!

[@VisibledarkAstro]

Working on short video to show that. It certainly improves things a bit anyhow. Will share soon.

[@LogansChristmasLights]

Another great tip Shawn. Thanks

[@VisibledarkAstro]

Thanks for tuning in Logan! Cheers!

[@ziebol1]

As always, very informative! What method would you recommend to fix elongated stars coming from field curvature?

[@kryff1]

Great video, works well, Thanks Shawn.

[@rocketfast09]

Excellent video. Thanks for sharing!

[@VisibledarkAstro]

Glad you enjoyed it!

[@chatterjeevideos]

Nice and useful

[@giampieroiannone9202]

Could you use DynamicPSF and click on stars and look at the theta values to get a better idea of what a good rotation angle is?

[@VisibledarkAstro]

yes for sure! That's a good idea.

[@andyweeks2216]

Excellent Shawn! Thank you so much.

[@kowalskik.1333]

Hi, dou you maybe know a way to fix egg stars in Photoshop? KR

[@VisibledarkAstro]

There is a way but I honestly can't remember it. It's been so many years since I last PS for image processing.

[@gallgs52]

Thx for the tip! It really worked for me.

[@TheMje1963]

Nice, Thanks Shawn

[@VisibledarkAstro]

You bet! Cheers

[@jeffmarcks3256]

Great tip! I will be using this a lot. When do you use this in the workflow? Thanks!

[@dekemp1986]

In the linear phase. Before noise reduction, and after background extraction

[@VisibledarkAstro]

You want to use it early on really. Before you stretch the image.

[@GordinhoTube]

Thank you very much for that great tip. :-)

[@VisibledarkAstro]

You're welcome!

[@cliffordmarcus6683]

I'm finding it improves star shapes, but increases noise in the background.

[@Astrolips2000]

this is awesome, thank you!

[@VisibledarkAstro]

Glad you like it!

[@nireesh]

Works great, thanks!

[@soaringfranz]

Is the image already stretched? I don’t see the green underlining on the tab name, which makes me think it is.

[@AG-kd3sw]

Hello and thanks for your video! ((o: Sometime I have stars "in different direction" in the corners. Do you have an idea what can I do to fit it?

[@VisibledarkAstro]

I'm thinking you might need a field flattener for your setup. This will correct curvature in the corners that will distort your stars.

[@josephhodge7343]

Should this be done while linear or non-linear?

[@VisibledarkAstro]

Ideally it should be done before stretching.

[@Bills_APCh]

Is Pixinsight cheating ? I can apply Pixinsight to make an achromatic refractor exceed a 9000 dollar apochromatic refractor?

[@DeepSpaceDad]

No mask?