Celestial hemisphere:  Northern  ·  Constellation: Vulpecula (Vul)  ·  Contains:  Extremely wide field
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Vulpecula - 75mm SLR lens and Altair Hypercam 183C, 



    
        

            Tom Gray
Vulpecula - 75mm SLR lens and Altair Hypercam 183C, 



    
        

            Tom Gray

Vulpecula - 75mm SLR lens and Altair Hypercam 183C

Getting plate-solving status, please wait...
Vulpecula - 75mm SLR lens and Altair Hypercam 183C, 



    
        

            Tom Gray
Vulpecula - 75mm SLR lens and Altair Hypercam 183C, 



    
        

            Tom Gray

Vulpecula - 75mm SLR lens and Altair Hypercam 183C

Acquisition details

Dates:
June 2, 2022
Frames:
Altair UV/IR cut (in-built): 39×60(39′) (gain: 400.00) f/4 bin 2×2
Integration:
39′
Darks:
30
Flats:
30
Avg. Moon age:
2.72 days
Avg. Moon phase:
8.13%
Bortle Dark-Sky Scale:
2.00
Temperature:
5.00

Basic astrometry details

Astrometry.net job: 5823093

RA center: 20h01m10s.3

DEC center: +21°4810

Pixel scale: 13.452 arcsec/pixel

Orientation: 177.727 degrees

Field radius: 6.025 degrees

Resolution: 2683x1789

File size: 27.5 MB

Locations: Remote 'observatory' (Bortle 2), Aberdeenshire, United Kingdom

Data source: Backyard

Description

Taken under 1 hour of 'civil darkness' from my 'dark sky' site in Scotland, this unguided image shows a 12 degree field in Vulpecula, with the tiny, but unmistakable, M27 bottom centre of the frame. Captured with my Hypercam 183C (2.4 micron pixels) attached to an old 75mm Pentax SLR zoom lens, and homemade CK to T2 adapter, using 60s unguided exposures.

With bright twilight in the North all night, rapidly giving way to dawn around 2am, needless to say there were a lot of gradients to deal with, and I lost an hour due to heavy cloud cover. That said, a joy to be back in Scotland, in the beauty and tranquility of this place, with a herd of 40 or so red deer pausing to graze the park in front of the house - what's not to enjoy.

Comments

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  • Final
    Vulpecula - 75mm SLR lens and Altair Hypercam 183C, 



    
        

            Tom Gray
    Original
  • Vulpecula - 75mm SLR lens and Altair Hypercam 183C, 



    
        

            Tom Gray
    B

B

Title: Annotated in ASTAP

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Sky plot

Sky plot

Histogram

Vulpecula - 75mm SLR lens and Altair Hypercam 183C, 



    
        

            Tom Gray