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Contains:  M 1, Crab nebula, NGC 1952
Getting plate-solving status, please wait...
M1 - Crab Nebula - SHO - Esprit 120 - ASI1600MM - CEM60 - 20 hours, 





    
        

            Rowland Archer

M1 - Crab Nebula - SHO - Esprit 120 - ASI1600MM - CEM60 - 20 hours

Technical card

Resolution: 1920x1080

Dates:Nov. 27, 2018

Frames:
ZWO Ha 1.25" 7nm: 201x300" (gain: 139.00) -15C bin 1x1
ZWO OIII 1.25" 7nm: 95x300" (gain: 139.00) -15C bin 1x1
ZWO SII 1.25" 7 nm: 178x300" (gain: 139.00) -15C bin 1x1

Integration: 39.5 hours

Avg. Moon age: 19.42 days

Avg. Moon phase: 77.41%

Astrometry.net job: 2561620

Locations: Home Observatory, Wake Forest, NC, United States

Data source: Backyard

Description

Twenty hours of SHO on M1, the Crab Nebula. Started with a straight Hubble palette, RGB = SHO, and finished with selective color in Photoshop using the mapping that normally shifts the greenish Hubble palette to a more blue and gold hued interpretation.

Data collected on multiple nights from November 2018 to February 2019.

M1 has very strong data in all three narrow band channels - SII, Ha and OIII, producing this very interesting "Coat of Many Colors" / "Remember the 60's" look :-) .

Revision C was an experiment with RGB stars captured with my EdgeHD, so didn't have enough to cover the whole field of the "final" version posted here.

Comments and critiques always welcome!

Rowland

Comments

Author

Vassar1976
Rowland Archer
License: None (All rights reserved)
2113
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Revisions

  • M1 - Crab Nebula - SHO - Esprit 120 - ASI1600MM - CEM60 - 20 hours, 





    
        

            Rowland Archer
    Original
  • Final
    M1 - Crab Nebula - SHO - Esprit 120 - ASI1600MM - CEM60 - 20 hours, 





    
        

            Rowland Archer
    B
  • M1 - Crab Nebula - SHO - Esprit 120 - ASI1600MM - CEM60 - 20 hours, 





    
        

            Rowland Archer
    C

B

Reprocessed post-stretch

C

RGB Stars

Histogram

M1 - Crab Nebula - SHO - Esprit 120 - ASI1600MM - CEM60 - 20 hours, 





    
        

            Rowland Archer