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Contains:  NGC 2252, NGC 2244, Rosette nebula, NGC 2239, The star 12Mon
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The Rosette Nebula

Technical card

Imaging telescopes or lenses:Takahashi Epsilon 130DTakahashi CCA250

Imaging cameras:Nikon D810AQSI 583ws

Mount:Vixen AXD

Guiding telescope or lens:Takahashi GT-40

Guiding camera:Starlight Xpress Superstar

Focal reducer:Takahashi Reducer 645 (x 0,72)

Software:PixInsight 1.8Adobe Photoship CC 2017

Resolution: 2023x2383

Dates:Oct. 17, 2014Dec. 30, 2016

12x40" ISO200
36x300" ISO800
Astrodon H-alpha 5nm: 6x900" -25C
Astrodon O3 5nm: 18x900" -25C
Astrodon S2 5nm: 12x900" -25C

Integration: 12.1 hours

Avg. Moon age: 12.39 days

Avg. Moon phase: 17.80% job: 1711546

RA center: 97.985 degrees

DEC center: 5.001 degrees

Pixel scale: 2.586 arcsec/pixel

Orientation: 1.279 degrees

Field radius: 1.123 degrees

Locations: Kahorigaoka, Asahi-city, Chiba, Japan


(Composite study of RGB and HsOOh to make stars smaller)



Toshiya Arai
License: None (All rights reserved)



This is RGB image (Nikon D810A)


This is HsOOh image. I adjusted the color with reference to the previous RGB image.

Sky plot

Sky plot


The Rosette Nebula, 


            Toshiya Arai