Hemisphere:  Northern  ·  Constellation: Cygnus (Cyg)  ·  Contains:  Extremely wide field
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Albireo but where’s the colour?, 



    
        

            Tom Gray
Albireo but where’s the colour?
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Albireo but where’s the colour?

Getting plate-solving status, please wait...
Albireo but where’s the colour?, 



    
        

            Tom Gray
Albireo but where’s the colour?
Powered byPixInsight

Albireo but where’s the colour?

Technical card

Imaging telescopes or lenses: Meade 2080 SCT 8" LX5

Imaging cameras: Meade DSI 3 Pro

Mounts: Meade Fork mount w/wedge Meade

Focal reducers: Meade f3.3 focal reducer/field flattener Meade Focal reducer

Software: Han Klein ASTAP v0.915  ·  SiliconFields / Ivo Jager Startools v1.7  ·  PHD2 Guiding V 2.6  ·  Meade Envisage V4.10

Filters: Meade LRGB 1.25"

Accessory: Bahtinov Mask


Dates:July 16, 2021

Frames: 45x15" (11' 15")

Integration: 11' 15"

Avg. Moon age: 6.40 days

Avg. Moon phase: 39.64%


Basic astrometry details

Astrometry.net job: 4930593

RA center: 19h30m48s

DEC center: +27°5721

Pixel scale: 1.682 arcsec/pixel

Orientation: 179.743 degrees

Field radius: 0.379 degrees


Resolution: 1316x950

Locations: Home 'observatory' (Bortle 5), Derbyshire, United Kingdom

Data source: Backyard

Description

What a disappointment! While waiting for the short hours of darkness we experience at this time of year, I decided to image my favourite double star, Albireo (beta 1 Cyg), and beta 2 Cyg which have such wonderful colours in the eyepiece - gold and sapphire blue respectively. My 15s exposures were too much, and the halo surrounding the stars prevented me from drawing out any colour.

I’m posting this as a reminder to myself, to try again with much shorter exposures, perhaps layering these into the deeper starfield.

Comments

Revisions

  • Albireo but where’s the colour?, 



    
        

            Tom Gray
    Original
  • Final
    Albireo but where’s the colour?, 



    
        

            Tom Gray
    B

B

Description: Here's the best I can do with my LRGB data - Albireo is over-exposed, although I am quite happy with the overall starfield. I have added gentle star spikes to accentuate the lovely colours in this famous double star.

Uploaded: ...

Sky plot

Sky plot

Histogram

Albireo but where’s the colour?, 



    
        

            Tom Gray