Hemisphere:  Northern  ·  Constellation: Vulpecula (Vul)
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Abell 74 in Vulpecula, 



    
        

            Maciej
Abell 74 in Vulpecula
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Abell 74 in Vulpecula

Technical card

Imaging telescopes or lenses: Officina Stellare Veloce RH 200 Veloce RH 200

Imaging cameras: Atik ONE 6.0

Mounts: ASA Astrosysteme DDM 60 Standard

Guiding cameras: Unguided

Software: Pleiades Astrophoto, S.L. PixInsight 1.8 Ripley

Filters: B  ·  R  ·  Baader Planetarium L  ·  Baader Planetarium Ha 7nm  ·  Baader Planetarium G  ·  Baader Planetarium OIII 8.5 nm

Accessory: FLI Atlas focuser


Dates:Aug. 14, 2020

Frames:
B: 12x300"
Baader Planetarium G: 12x300"
Baader Planetarium Ha 7nm: 36x1200"
Baader Planetarium L: 36x300"
Baader Planetarium OIII 8.5 nm: 12x1200" bin 2x2
R: 12x300"

Integration: 22.0 hours

Avg. Moon age: 24.74 days

Avg. Moon phase: 23.77%

Bortle Dark-Sky Scale: 3.00


Basic astrometry details

Astrometry.net job: 3762502

RA center: 21h 16' 48"

DEC center: +24° 8' 9"

Pixel scale: 2.144 arcsec/pixel

Orientation: 356.168 degrees

Field radius: 0.763 degrees


Resolution: 2000x1600

Locations: Backyard observatory, Brok, Mazovian District, Poland

Data source: Backyard

Description

It is a large nebula that is confusingly similar to NGC 7293 Helix and Mesier 27. The main difference is the nearly zero OIII signal from the Abell 74 nebula. I used the f3 Officina Stellare Veloce RH200 optics and on bin 2 of my camera I managed to get a trace of an irregular spot in the center.
Presented in HaOIIILRGB combination.
Annotated version included.

Comments

Revisions

  • Abell 74 in Vulpecula, 



    
        

            Maciej
    Original
  • Abell 74 in Vulpecula, 



    
        

            Maciej
    B
  • Final
    Abell 74 in Vulpecula, 



    
        

            Maciej
    C

B

Description: Annotated

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Sky plot

Sky plot

Histogram

Abell 74 in Vulpecula, 



    
        

            Maciej