Hemisphere:  Northern  ·  Constellation: Monoceros (Mon)  ·  Contains:  NGC 2237  ·  NGC 2238  ·  NGC 2239  ·  NGC 2246  ·  Rosette A  ·  Rosette B  ·  Rosette Nebula  ·  The star 12Mon
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NGC 2244 Rosette Nebula, 



    
        

            Kathy Walker
NGC 2244 Rosette Nebula
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NGC 2244 Rosette Nebula

Getting plate-solving status, please wait...
NGC 2244 Rosette Nebula, 



    
        

            Kathy Walker
NGC 2244 Rosette Nebula
Powered byPixInsight

NGC 2244 Rosette Nebula

Technical card

Imaging telescopes or lenses: Orion 200mm f/4 Newtonian astrograph

Imaging cameras: Atik 383L+ mono

Mounts: CEM60

Guiding telescopes or lenses: KW Telescopes KWIQ Guider

Guiding cameras: QHY5

Software: Pixinsight 1.8

Filters: Astrodon 5nm Oiii  ·  Astrodon 5nm Halpha

Accessory: TeleVue Paracorr Type 2


Dates:March 3, 2021

Frames:
Astrodon 5nm Halpha: 8x600" (1h 20') bin 1x1
Astrodon 5nm Oiii: 8x900" (2h) bin 1x1

Integration: 3h 20'

Avg. Moon age: 19.36 days

Avg. Moon phase: 77.98%


Basic astrometry details

Astrometry.net job: 4275439

RA center: 06h32m24s.2

DEC center: +04°5700

Pixel scale: 1.205 arcsec/pixel

Orientation: 0.443 degrees

Field radius: 0.697 degrees


Resolution: 3328x2504

Locations: Hall's Harbour Observatory (H2O), Hall's Harbour, NS, Canada

Data source: Backyard

Description

The Rosette Nebula, in my own HO palette.

I have had quite a few comments on my palette, on this and other images. Here is what I use:

L = (H + O) / 2

R = 1.5 * H - O

G = 0.4 * H + 0.325 * O

B = O

You have to be a little careful on the red channel, with the negative Oiii term, not to clip the darks. My Oiii is always weaker than the Ha, so this is seldom a problem.

I find this palette gives a warm, natural feel to what is really a false-colour image.

Comments

Revisions

  • NGC 2244 Rosette Nebula, 



    
        

            Kathy Walker
    Original
  • Final
    NGC 2244 Rosette Nebula, 



    
        

            Kathy Walker
    B

B

Description: A slightly brighter version

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Sky plot

Sky plot

Histogram

NGC 2244 Rosette Nebula, 



    
        

            Kathy Walker