Hemisphere:  Northern  ·  Constellation: Coma Berenices (Com)  ·  Contains:  NGC 4651  ·  Umbrella Galaxy
A near futile attempt at the umbrella galaxy, 



    
        

            Dennys_T
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A near futile attempt at the umbrella galaxy

A near futile attempt at the umbrella galaxy, 



    
        

            Dennys_T
Powered byPixInsight

A near futile attempt at the umbrella galaxy

Technical card

Imaging telescopes or lenses: Celestron 8" SCT GT Series SCT 8"

Imaging cameras: ZWO ASI1600MC-Cool

Mounts: Celestron CG-5 Advanced GT

Guiding telescopes or lenses: ZWO 60mm f/4.6 Guidescope ZWO 60mm

Guiding cameras: Orion SSAG StarShoot AutoGuider

Focal reducers: Antares f/6.3 Focal Reducer for SCT

Software: APT - Astro Photography Tool  ·  Stark Labs PHD 1.14.0  ·  Adobe Photoshop CS3 PS CS3

Accessory: QHYCCD PoleMaster


Dates:June 7, 2019March 20, 2020March 21, 2020

Frames:
7x240" (28') bin 2x2
17x300" (1h 25') bin 2x2
30x180" (1h 30') (gain: 139.00) -20C bin 2x2

Integration: 3h 23'

Darks: 25

Flats: 25

Bias: 100

Avg. Moon age: 19.12 days

Avg. Moon phase: 13.70%

Bortle Dark-Sky Scale: 6.00

Temperature: -6.00


RA center: 12h43m50s.363

DEC center: +16°2247.66

Pixel scale: 1.082 arcsec/pixel

Orientation: 6.081 degrees

Field radius: 0.273 degrees

More info:Open 


Resolution: 1540x964

Locations: St Alexandre, St Alexandre, Quebec, Canada

Data source: Traveller

Description

My first subs of this target were aimed at resolving properly the galaxy's core while my second set was to pull out the umbrella part.

Integrating both set of frames proved more a challenge than I imagined.

Safe to say that I need at least 2-3x the integration data to pull this one off.

Comments

Sky plot

Sky plot

Histogram

A near futile attempt at the umbrella galaxy, 



    
        

            Dennys_T