Hemisphere:  Northern  ·  Constellation: Ursa Major (UMa)  ·  Contains:  M 101  ·  NGC 5457
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M101 The Pinwheel Galaxy, 



    
        

            Monkeybird747
M101 The Pinwheel Galaxy
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M101 The Pinwheel Galaxy

Getting plate-solving status, please wait...
M101 The Pinwheel Galaxy, 



    
        

            Monkeybird747
M101 The Pinwheel Galaxy
Powered byPixInsight

M101 The Pinwheel Galaxy

Technical card

Imaging telescopes or lenses: GSO 12" f4 Truss Newtonian

Imaging cameras: ZWO ASI183MM-Cool

Mounts: Astro-Physics Mach1 GTO CP3

Guiding cameras: ZWO ASI290MM Mini

Focal reducers: Tele Vue Paracorr Type-2

Software: PHD Labs PHD 2 Guiding  ·  Starkeeper Software Voyager  ·  Pixinsight

Filters: Chroma Blue 2" Mounted  ·  Chroma Green 2" Mounted  ·  Chroma Red 2" Mounted  ·  Chroma Ha 3nm  ·  Chroma Luminance 2" Mounted


Dates:April 24, 2019April 25, 2019

Frames:
Chroma Blue 2" Mounted: 29x180" (1h 27') bin 1x1
Chroma Green 2" Mounted: 29x180" (1h 27') bin 1x1
Chroma Ha 3nm: 13x300" (1h 5') bin 1x1
Chroma Luminance 2" Mounted: 154x120" (5h 8') (gain: 53.00) -10C bin 1x1
Chroma Red 2" Mounted: 29x180" (1h 27') bin 1x1

Integration: 10h 34'

Darks: ~30

Flats: ~15

Bias: ~150

Avg. Moon age: 20.38 days

Avg. Moon phase: 68.28%

Bortle Dark-Sky Scale: 7.00


Astrometry.net job: 2884529

RA center: 14h 3' 12"

DEC center: +54° 21' 3"

Pixel scale: 0.356 arcsec/pixel

Orientation: 269.778 degrees

Field radius: 0.319 degrees


Resolution: 5373x3552

Data source: Backyard

Description

First light with a new-to-me 12" GSO truss newtonian. The Paracorr has a 1.15x barlow effect, bringing the newt to f4.6.

Comments

Revisions

  • M101 The Pinwheel Galaxy, 



    
        

            Monkeybird747
    Original
  • M101 The Pinwheel Galaxy, 



    
        

            Monkeybird747
    B
  • M101 The Pinwheel Galaxy, 



    
        

            Monkeybird747
    C
  • M101 The Pinwheel Galaxy, 



    
        

            Monkeybird747
    E
  • Final
    M101 The Pinwheel Galaxy, 



    
        

            Monkeybird747
    F

B

Description: Sharpened and reduced reds.

Uploaded: ...

C

Description: Didn't like the sharpening. Took it out but kept the color profile.

Uploaded: ...

E

Description: Reprocess. Previous versions looked a little washed out to me.

Uploaded: ...

F

Description: Removed red cast from background.

Uploaded: ...

Sky plot

Sky plot

Histogram

M101 The Pinwheel Galaxy, 



    
        

            Monkeybird747