Celestial hemisphere:  Northern  ·  Constellation: Cygnus (Cyg)  ·  Contains:  NGC 6997  ·  NGC 7000  ·  North America nebula
Getting plate-solving status, please wait...
North America Nebula, Don Walters
North America Nebula
Powered byPixInsight

North America Nebula

Getting plate-solving status, please wait...
North America Nebula, Don Walters
North America Nebula
Powered byPixInsight

North America Nebula

Equipment

Loading...

Acquisition details

Loading...

Description

This was my first time using an off-axis guider, and I'm glad I did! My guide RMS is now less than half what I was getting with a guide scope. I saw as low as 0.4, but typically got from 0.6-1.0.

I also increased my dithering to 20 pixels, since I had to change it anyway for the OAG.

All calibration, stacking, and processing done in PixInsight:

Calibrated my Flats with Flat-Darks

Calibrated my lights against a master dark and master flats (no bias)

Integrated all calibration frames with Winsoried clipping

Integrated my Ha/OIII/SII masters with linear fit clipping

Drizzle up by 2x

Resample down by 1/2

MLT (noise reduction) to each master

Combined using Pixelmath:

R = Ha

G = 65%*Ha / 35%*OIII

B = OIII

Histogram transformation

Unsharp mask

HDRMT (with star mask)

Comments

Sky plot

Sky plot

Histogram

North America Nebula, Don Walters