Hemisphere:  Northern  ·  Constellation: Cassiopeia (Cas)  ·  Contains:  NGC 281
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NGC 281 Pacman Nebula SHO Narrowband - Esprit 120 - ASI1600MM, 



    
        

            Rowland Archer
NGC 281 Pacman Nebula SHO Narrowband - Esprit 120 - ASI1600MM
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NGC 281 Pacman Nebula SHO Narrowband - Esprit 120 - ASI1600MM

Getting plate-solving status, please wait...
NGC 281 Pacman Nebula SHO Narrowband - Esprit 120 - ASI1600MM, 



    
        

            Rowland Archer
NGC 281 Pacman Nebula SHO Narrowband - Esprit 120 - ASI1600MM
Powered byPixInsight

NGC 281 Pacman Nebula SHO Narrowband - Esprit 120 - ASI1600MM

Technical card

Imaging telescopes or lenses: Sky-Watcher Esprit 120

Imaging cameras: ZWO ASI1600MM-Cool

Mounts: Paramount MyT

Guiding telescopes or lenses: Orion StarShoot Autoguider

Guiding cameras: Orion Starshoot Autoguider Pro

Focal reducers: Sky-Watcher Field Flattener Esprit 120

Software: PHD2  ·  PixInsight 1.8 Ripley  ·  Main Sequence Software SequenceGeneratorPro

Filters: OIII 3nm  ·  Astrodon H-alpha 5nm  ·  SII 3nm

Accessory: ZWO 8x 1.25" EFW


Dates:Dec. 11, 2017

Frames:
Astrodon Ha 5nm: 57x300" (4h 45') (gain: 200.00) -20C bin 1x1
Astrodon Narrowband Filters (3-5 nm) Astrodon 3nm Oiii: 48x300" (4h) (gain: 200.00) -20C bin 1x1
Astrodon Narrowband Filters (3-5 nm) Astrodon 3nm Sii: 59x300" (4h 55') (gain: 200.00) -20C bin 1x1

Integration: 13h 40'

Darks: 30

Flats: 30

Bias: 200

Avg. Moon age: 23.30 days

Avg. Moon phase: 37.90%

Bortle Dark-Sky Scale: 5.00

Mean SQM: 19.70


Basic astrometry details

Astrometry.net job: 2018516

RA center: 00h52m25s

DEC center: +56°4033

Pixel scale: 0.913 arcsec/pixel

Orientation: 40.282 degrees

Field radius: 0.541 degrees


Resolution: 3402x2570

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

Data source: Backyard

Description

Imaged the first half of last December, tossed about 20% of the subs but what was left was fairly decent data. 13.7 hours - not crazy deep, but enough that I only needed a small amount of noise reduction, MLT in the linear state and GREYCStoration final touch-up while non-linear.

Did most processing in PI, and finished with star halo reduction and local contrast enhancement (Bodoni toos) in PS.

See other revisions for a different color blend.

Comments

Revisions

  • NGC 281 Pacman Nebula SHO Narrowband - Esprit 120 - ASI1600MM, 



    
        

            Rowland Archer
    Original
  • NGC 281 Pacman Nebula SHO Narrowband - Esprit 120 - ASI1600MM, 



    
        

            Rowland Archer
    B
  • NGC 281 Pacman Nebula SHO Narrowband - Esprit 120 - ASI1600MM, 



    
        

            Rowland Archer
    C
  • NGC 281 Pacman Nebula SHO Narrowband - Esprit 120 - ASI1600MM, 



    
        

            Rowland Archer
    D
  • Final
    NGC 281 Pacman Nebula SHO Narrowband - Esprit 120 - ASI1600MM, 



    
        

            Rowland Archer
    E

B

Description: Color profile sRGB

Uploaded: ...

C

Description: Alternate color blending: R = 50% Ha, 50% SII G = 20% Ha, 80% OIII B = OIII

Uploaded: ...

D

Description: Monochrome - extracted L channel from the "HOO" flavored blend (actually R= 50% S, 50% H; G= 80% O, 20% H; B = O)

Uploaded: ...

E

Description: Applied Bob Franke's Hubble Palette SelectiveColor changes in PS - thanks Adam Phillips on CN for the tip!

Uploaded: ...

Sky plot

Sky plot

Histogram

NGC 281 Pacman Nebula SHO Narrowband - Esprit 120 - ASI1600MM, 



    
        

            Rowland Archer

In these public groups

ZWO ASI1600MM/QHY163M