This is a widefield image of the entire Veil Nebula (the Cygnus Loop) including: The Eastern Veil (NGC 6995) at left, The Southeastern Knot at lower left, Pickering's Triangle at top right, and the Western Veil (NGC 6960; Witch's Broom; Filamentary Nebula) at middle right. There are numerous other structures present as well.
I wanted to try out a new 0.8x reducer/flattener, but I see a few oval stars at the corners, especially. I'm not sure if this was due to the reducer/flattener or if it was the wind, which was whipping around pretty good last night (10/22/22) (Guiding error was a little higher than usual as well; between 1-2"). I'll have to try it out again on a calm night.
Unfortunately, I inadvertently had 2x2 binning selected in my exposure options so the image appears a little softer than it might otherwise. I can still make out some detail, though, so not a total loss. And yet another lesson learned: check binning before imaging!
AT60ED w/ 0.8x reducer/flattener (288mm fL)
ASI2600MC Pro (OSC camera) -- 2x2 binning (not intentional!)
SkyGuider Pro with guiding via ASIAir Plus using an ASI120mm mini and a 30mm F4 guide scope
Antlia ALP-T Ha/OIII dual narrowband filter
180s x 79 [Total Exposure 3:57]; with dark, flat, and dark-flat frames
Pre-processed in PixInsight and post-processed in Photoshop
Greg
Now that is an awesome shot! Field of view, processing, detail. Checks all the boxes for me!
Binning, schminning!
-P-
Now that is an awesome shot! Field of view, processing, detail. Checks all the boxes for me!
Binning, schminning!
-P-
You're funny, Peter! 😀 Yeah, I guess if everything went just the way I wanted it to and I didn't forget to check something -- it wouldn't be astrophotography! Where's the fun in that?
Seriously, thanks very much for the kind words!
Greg
Wow -- that is stunning!
Wow -- that is stunning!
Thank you, Mark!
Greg
This is a widefield image of the entire Veil Nebula (the Cygnus Loop) including: The Eastern Veil (NGC 6995) at left, The Southeastern Knot at lower left, Pickering's Triangle at top right, and the Western Veil (NGC 6960; Witch's Broom; Filamentary Nebula) at middle right. There are numerous other structures present as well.
I wanted to try out a new 0.8x reducer/flattener, but I see a few oval stars at the corners, especially. I'm not sure if this was due to the reducer/flattener or if it was the wind, which was whipping around pretty good last night (10/22/22) (Guiding error was a little higher than usual as well; between 1-2"). I'll have to try it out again on a calm night.
Unfortunately, I inadvertently had 2x2 binning selected in my exposure options so the image appears a little softer than it might otherwise. I can still make out some detail, though, so not a total loss. And yet another lesson learned: check binning before imaging!
AT60ED w/ 0.8x reducer/flattener (288mm fL)
ASI2600MC Pro (OSC camera) -- 2x2 binning (not intentional!)
SkyGuider Pro with guiding via ASIAir Plus using an ASI120mm mini and a 30mm F4 guide scope
Antlia ALP-T Ha/OIII dual narrowband filter
180s x 79 [Total Exposure 3:57]; with dark, flat, and dark-flat frames
Pre-processed in PixInsight and post-processed in PhotoshopGreg
Greg, fabulous shot! I don't know how I missed it.. not intention. Love the colors and the scale.
Terri
This is a widefield image of the entire Veil Nebula (the Cygnus Loop) including: The Eastern Veil (NGC 6995) at left, The Southeastern Knot at lower left, Pickering's Triangle at top right, and the Western Veil (NGC 6960; Witch's Broom; Filamentary Nebula) at middle right. There are numerous other structures present as well.
I wanted to try out a new 0.8x reducer/flattener, but I see a few oval stars at the corners, especially. I'm not sure if this was due to the reducer/flattener or if it was the wind, which was whipping around pretty good last night (10/22/22) (Guiding error was a little higher than usual as well; between 1-2"). I'll have to try it out again on a calm night.
Unfortunately, I inadvertently had 2x2 binning selected in my exposure options so the image appears a little softer than it might otherwise. I can still make out some detail, though, so not a total loss. And yet another lesson learned: check binning before imaging!
AT60ED w/ 0.8x reducer/flattener (288mm fL)
ASI2600MC Pro (OSC camera) -- 2x2 binning (not intentional!)
SkyGuider Pro with guiding via ASIAir Plus using an ASI120mm mini and a 30mm F4 guide scope
Antlia ALP-T Ha/OIII dual narrowband filter
180s x 79 [Total Exposure 3:57]; with dark, flat, and dark-flat frames
Pre-processed in PixInsight and post-processed in PhotoshopGreg
Greg, fabulous shot! I don't know how I missed it.. not intention. Love the colors and the scale.
Terri
Thanks, Terri!! It was nice to test out the 0.8x flattener/reducer. I noticed some oval stars in the upper corners. I haven't had a chance to test/rotate the flattener to see if something's up with it, but otherwise it's great.
Greg
