NGC 1491 and PN Ou1

Image Title: NGC 1491 and PN Ou1

Copyright: Chris Parfett

Date image was taken: December 29, 2023

Location: Bittern Lake, Alberta, Canada

Image Description and Details: When I set out to image this target, my plan was an LRGB image with Ha mixed in.  With all the non-clear nights and the moon being in the way it ended up becoming a SHO target instead.  I wanted to do something different than the traditional Hubble palette so I found a Pixelmath combination that offered something different than normal.  I used the following:

R: .5*Ha + .5* Sii

G: .8*Oiii + .2* Sii

B: .9*Oiii + .1* Sii

The center area of the target became a purple color with a very small center light blue area. There is quite a bit of OIII in this target, so I wanted to bring some of that back into this image. I also did a standard style Hubble palette, and I ended up masking the blue the best I could, and adding the new Pixelmath version to it. That way more blue could show through, and I think it improved the outcome.
Ha - 170 x 300s
Sii - 91 x 300s
Oiii - 71 x 300s
Plus RGB stars at 20 x 60 seconds each

Equipment Details: Acquisition set-up:

William Optics GT102
Flat 68III
ZWO ASI 2600MM Pro
Antlia LRGBSHO filters
ZWO 7 position 2" filter wheel
WO 50mm UniGuide/ZWO ASI 290mm mini
Sky-Watcher AZ-EQ6 Pro
ZWO ASI Air Pro
Pixinsight & Photoshop
Location: Central Alberta, Canada

Askar PHQ 107 and William Optics GT102
ZWO ASI 2600MM Pro
Antlia LRGBSHO filters
ZWO 7 position 2" filter wheel
WO 50mm UniGuide/ZWO ASI 290mm mini
Sky-Watcher EQ6r Pro
ZWO ASI Air Plus / ZWO EAF
Pixinsight & Photoshop