NGC6781/PNG041.8-02.9 (Planetary Neb.)

alexiezkoff

1381946

Deep Sky

Jun 27th, 2020

2436

NGC 6781

Resolution:: 3292x2488 px
File size:: 11726 KB

Show astrometry on hover

Photo description / processing

A bicolor combination of Ha & OIII + LRGB stars. Forgot to crop the stacking trails.

Technical information

Telescope/Lens: Sky-Watcher 200PDS
Camera: ZWO ASI1600MM Pro
Mount: Sky-Watcher AZ-EQ6 GT
Guide Scope: Sky-Watcher 200PDS
Guide Camera: Starlight Xpress Lodestar X2
Accessories: Baader MPCC Mark III, Sky-Watcher OAG, ZWO EFW 8-Position Filter Wheel
Software: MaxIm DL, CCDStack 2, StarTools, PixInsight LE, Fitswork4

Location: Светловодск, Ukraine

Light pollution

Green, Bortle 4 zone

Exposure

47 × 300″ · ISO/Gain: 200 · Ha
39 × 300″ · ISO/Gain: 200 · OIII
78 × 180″ · ISO/Gain: 76 · L
30 × 100″ · ISO/Gain: 139 · R
30 × 75″ · ISO/Gain: 139 · G
30 × 100″ · ISO/Gain: 139 · B

Total exposure: 13 h 22 m

Comments

Smirnov Andrey

What palette did you use? Where and how much narrowband signal did you add?
I'm also currently imaging this planetary nebula, but I haven't collected as much data yet.

Jun 27th, 2020

Smirnov AndreyReply to Smirnov Andrey

From the photo comment, it's not very clear which palette is used in the bicolor.

Jun 27th, 2020

alexiezkoffReply to Smirnov Andrey

Information on the number and duration of subframes in the image annotation. Bicolor—Ha to red, O3 to green and O3 to blue in a 1:1:1 ratio. Blended with colored stars in StarTools using the star mask method in the Layers module. The object is admittedly a bit small for a 1-meter focal length, but some details are present.

Jun 27th, 2020

alexiezkoffReply to alexiezkoff

I think the TAL-250 could capture more interesting shots. Good luck in our challenging but very fascinating hobby.

Jun 27th, 2020

Smirnov AndreyReply to alexiezkoff

Thank you! Now everything is clear.

Jun 27th, 2020

Smirnov AndreyReply to alexiezkoff

And good luck to you, and clear skies!

Jun 27th, 2020