Hemisphere:  Northern  ·  Constellation: Canes Venatici (CVn)  ·  Contains:  IC 4263  ·  M 51  ·  NGC 5194  ·  NGC 5195  ·  Whirlpool galaxy
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M51, 



    
        

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M51
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M51

Getting plate-solving status, please wait...
M51, 



    
        

            hy
M51
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M51

Technical card

Imaging telescopes or lenses: Williams Optics Zenithstar 105 ED Triplet APO

Imaging cameras: ZWO ASI1600mm Pro Cooled

Mounts: Orion Atlas AZ/EQ Pro

Guiding telescopes or lenses: 9x50 Finder Scope

Guiding cameras: QHY5L-II-M

Focal reducers: William Optics 0.8x Reducer/Flattener Flat6A II

Software: KStars Ekos/INDI, Stellarmate OS  ·  Adobe Phosotshop CC  ·  Adobe Lighroom CC Classic  ·  PixInsight 1.8

Filters: Astronomik Ha 31mm 6nm  ·  Astronomik Blue 31mm  ·  Astronomik Green 31mm  ·  Astronomik Red 31mm


Frames:
Astronomik Blue 31mm: 75x240" (gain: 75.00) -25C bin 1x1
Astronomik Green 31mm: 88x240" (gain: 75.00) -25C bin 1x1
Astronomik Ha 31mm 6nm: 15x240" (gain: 139.00) -25C
Astronomik Red 31mm: 95x240" (gain: 75.00) -25C bin 1x1

Integration: 18.2 hours

Darks: ~25

Flats: ~25

Bias: ~100

Bortle Dark-Sky Scale: 5.00


Basic astrometry details

Astrometry.net job: 2699892

RA center: 13h 29' 49"

DEC center: +47° 14' 9"

Pixel scale: 0.668 arcsec/pixel

Orientation: 28.777 degrees

Field radius: 0.565 degrees


Resolution: 4925x3582

Data source: Backyard

Description

M51 taken from my backyard in Silicon Valley.
Continuing to learn how to add Ha to RGB images.
Taken nights of 4/23/19 - 4/26/19.

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