Hemisphere:  Northern  ·  Constellation: Canes Venatici (CVn)  ·  Contains:  IC 4277  ·  M 51  ·  NGC 5194  ·  NGC 5195  ·  Whirlpool Galaxy
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M 51 - The Whirlpool Galaxy with C2PU T 1000, 



    
        

            Jeffbax Velocicaptor
M 51 - The Whirlpool Galaxy with C2PU T 1000
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M 51 - The Whirlpool Galaxy with C2PU T 1000

Getting plate-solving status, please wait...
M 51 - The Whirlpool Galaxy with C2PU T 1000, 



    
        

            Jeffbax Velocicaptor
M 51 - The Whirlpool Galaxy with C2PU T 1000
Powered byPixInsight

M 51 - The Whirlpool Galaxy with C2PU T 1000

Technical card

Imaging cameras: SBIG STX 36*36

Software: Adobe Photoshop CS5, CS6 Adobe Phtoshop  ·  Iris  ·  SIRIL


Dates:July 9, 2021

Frames: 795x60" (13h 15')

Integration: 13h 15'

Avg. Moon age: 29.02 days

Avg. Moon phase: 0.29%


Basic astrometry details

Astrometry.net job: 4799547

RA center: 13h29m52s

DEC center: +47°1149

Pixel scale: 0.281 arcsec/pixel

Orientation: 79.126 degrees

Field radius: 0.319 degrees


Resolution: 6555x4888

Locations: C2PU, Plateau de Calern, France

Description

Third image of the serie, started last month with M 101 and NGC 4565 a few days ago. Data from David Vernet from the C2PU observatory using the 1.05-meter f:3,17 Newton. There will be one more image coming this month, in Black and white.

M51 is one of the most beautifful galaxy IMO. Imaged here with a SBIG STX 36*36 mm .
  • Luminance : 8h10
  • Colors : 1h45 per channel.
  • 60 seconds frames.


This one gave me a lot of work. Half of the luminance was taken under good conditions and good seeing. The over half of the luminance and the color layers suffered from a camera cooling system failure. The data and DOF were at ambient temperature. But the seeing was excellente during this "failure" session.

I mixed the two sessions by normalizing the images and paying attention to thermal noise during each processing step. 8h10 have been saved out of 5h + 5 h of luminance.

Please, if you have time, have a look at the 64 Mp drizzled full frame on original version! Final Version is a cropped and turned field. Enjoy 😉

JF

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Revisions

  • M 51 - The Whirlpool Galaxy with C2PU T 1000, 



    
        

            Jeffbax Velocicaptor
    Original
  • Final
    M 51 - The Whirlpool Galaxy with C2PU T 1000, 



    
        

            Jeffbax Velocicaptor
    B

B

Description: Turned and cropped version.

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Sky plot

Sky plot

Histogram

M 51 - The Whirlpool Galaxy with C2PU T 1000, 



    
        

            Jeffbax Velocicaptor