Hemisphere:  Northern  ·  Constellation: Cassiopeia (Cas)
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Little Rosette Nebula HaRGB SH2-170, 



    
        

            Carastro
Little Rosette Nebula HaRGB SH2-170
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Little Rosette Nebula HaRGB SH2-170

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Little Rosette Nebula HaRGB SH2-170, 



    
        

            Carastro
Little Rosette Nebula HaRGB SH2-170
Powered byPixInsight

Little Rosette Nebula HaRGB SH2-170

Technical card

Imaging telescopes or lenses: Sky-Watcher 80ED

Imaging cameras: Atik 428EX Mono

Mounts: Skywatcher HEQ5 Pro Synscan Heq5pro

Focal reducers: WILLIAM OPTICS 0.8 Reducer/Field Flattner V.II

Software: photoshop  ·  RegiStar  ·  AstroArt v5 Astroart  ·  Atik artemis

Filters: Baader Ha 7nm 2"  ·  Baader LRGB 2'' Filters

Accessory: Atik EFW2 filter wheel


Dates:Aug. 24, 2019

Frames:
Baader Ha 7nm 2": 3x600" (30') -15C bin 1x1
Baader Ha 7nm 2": 12x900" (3h) -15C bin 1x1
RGB 1,25": 17x300" (1h 25') -15C bin 2x2

Integration: 4h 55'

Avg. Moon age: 23.00 days

Avg. Moon phase: 40.96%

Bortle Dark-Sky Scale: 8.00


Basic astrometry details

Astrometry.net job: 2881548

RA center: 0h 1' 47"

DEC center: +64° 36' 32"

Pixel scale: 1.913 arcsec/pixel

Orientation: 81.670 degrees

Field radius: 0.621 degrees


Resolution: 1890x1374

Locations: Home Observatory, SE London, Kent, United Kingdom

Data source: Backyard

Description

This has got to be the faintest target I have ever done and doing it from my back garden at Bortle 8 made it even more of the challenge.

I could not find any data in Oiii or Sii - probably it needs a dark sky, so I did HaRGB.

SWED80 & Atik428EX

HEQ5

Ha 3 x 600 (then realised I needed to do longer subs)

Ha 12 x 900

Red 5 x 300 binned x 2

Green 7 x 300 binned x 2

Blue 5 x 300 x 2

Comments

Revisions

  • Little Rosette Nebula HaRGB SH2-170, 



    
        

            Carastro
    Original
  • Little Rosette Nebula HaRGB SH2-170, 



    
        

            Carastro
    B
  • Final
    Little Rosette Nebula HaRGB SH2-170, 



    
        

            Carastro
    C

B

Description: Cropped edges processing artifacts

Uploaded: ...

C

Description: HLVG

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Sky plot

Sky plot

Histogram

Little Rosette Nebula HaRGB SH2-170, 



    
        

            Carastro