Celestial hemisphere:  Northern  ·  Constellation: Monoceros (Mon)  ·  Contains:  12 Mon  ·  12.53  ·  238 Hypatia  ·  NGC 2237  ·  NGC 2238  ·  NGC 2239  ·  NGC 2244  ·  NGC 2246  ·  NGC 2252  ·  Rosette nebula  ·  Sh2-275  ·  The star 12Mon
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NGC 2244 - Rosette Nebula in HSO, Rich Sky
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NGC 2244 - Rosette Nebula in HSO

Getting plate-solving status, please wait...
NGC 2244 - Rosette Nebula in HSO, Rich Sky
Powered byPixInsight

NGC 2244 - Rosette Nebula in HSO

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Description

NGC 2244/2237 or Caldwell 49 in SHO colors.

I used the following mix of colors:

Red channel : (60 S-II + 40 Ha)

Green channel : (30 S-II + 30 H-a + 40 O-III)

Blue channel : (100 O-III)

H-a: Clear night. Some frames with fwhm of 2.2

O-III: Clear night with Low clouds

S-II :Clear night with high clouds

S-II data average FWHM = 5.50, 2 points higher than the other data.

O-III data - strong gradient (increase # frames ? or new flats ?) FWHM = 3.8

H-a data - no issues FWHM = 3.5

Processing note: Using the 3 filters, fewer issues and simpler processing, Bin, crop, wipe, stretch, mix channel in %, increase contrast slightly, rotate image, crop image save.

Issues with software, framing and centering.

This project is now done!

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NGC 2244 - Rosette Nebula in HSO, Rich Sky