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Contains:  Andromeda galaxy, Great Nebula in Andromeda, M 31, M31, NGC 224
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The core of the Andromeda Galaxy and Hubble's Cepheid, 



    
        

            Christoph Lichtblau
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The core of the Andromeda Galaxy and Hubble's Cepheid

Technical card

Imaging telescopes or lenses:Orion Optics UK CT10 F4.8

Imaging cameras:ZWO ASI 1600MM-Pro

Mounts:Skywatcher EQ-6R pro

Guiding telescopes or lenses:Williams Optics Megrez90

Guiding cameras:zwo ASI 120mc

Focal reducers:GPU Pal Gyulai GPU 2" Aplanatic Coma Corrector

Software:PixInsightAdobe PS CS2Deepsky stacker

Filters:Baader Filterset 2"


Dates:Nov. 1, 2019

Frames: 258x150"

Integration: 10.8 hours

Avg. Moon age: 4.62 days

Avg. Moon phase: 22.26%


Astrometry.net job: 3043857

RA center: 0h 42' 43"

DEC center: +41° 16' 12"

Pixel scale: 0.665 arcsec/pixel

Orientation: 89.193 degrees

Field radius: 0.499 degrees


Resolution: 3294x4277

Locations: Backyard, Eschborn, Hessen, Germany

Data source: Backyard

Description

This is a project I was working quite long on. Beginning with a wonderful clear night in september I decided to go on this stunning target with my CLS CCD filter and exposed in three steps of duration. My wish was a final image without outburned core in addition with some nice details in the outer regions with soft colours. You can find a lot of version at which the processing is overdone just to rise up the outer regions and during the processing marathon I came to similar results, which I didn't really like. After several tries I dediced to share this version according to my feeling, that mostly a little bit less is better than too much. Of course this will not match to everyones taste but I hope you like it nevertheless...
CS, Christoph

Hubble's Cepheid
The marked tiny little star is the cepheid, famous astronomer Edwin Powell Hubble was searching for so long. Basing on the important works of Henritta Leavitt, Hubble could prove 1923-24 using the famous Hooker telescope for imaging on glas photo plates that M31 is not just a nebula of our milky way, but an idependently galaxy with an enormous distance. So this little variable star in the Andromeda Galaxie changed our complete view to our universe in a dramatic way...

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Author

Christophorus
Christoph Lichtblau
License: None (All rights reserved)
7384
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Revisions

  • Final
    The core of the Andromeda Galaxy and Hubble's Cepheid, 



    
        

            Christoph Lichtblau
    Original
  • The core of the Andromeda Galaxy and Hubble's Cepheid, 



    
        

            Christoph Lichtblau
    F

Sky plot

Sky plot

Histogram

The core of the Andromeda Galaxy and Hubble's Cepheid, 



    
        

            Christoph Lichtblau

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