Hemisphere:  Northern  ·  Constellation: Canes Venatici (CVn)  ·  Contains:  IC 4277  ·  IC4278  ·  M 51  ·  M51  ·  NGC 5194  ·  NGC 5195  ·  NGC5195  ·  Whirlpool Galaxy  ·  Whirlpool galaxy
Getting plate-solving status, please wait...
Messier 51: The Whirlpool, 



    
        

            David Redwine
Powered byPixInsight

Messier 51: The Whirlpool

Getting plate-solving status, please wait...
Messier 51: The Whirlpool, 



    
        

            David Redwine
Powered byPixInsight

Messier 51: The Whirlpool

Imaging telescopes or lenses: Celestron 8" EdgeHD  ·  CELESTRON EdgeHD 800

Imaging cameras: ZWO ASI1600 MM Pro

Mounts: Celestron CGX-L

Guiding telescopes or lenses: Celestron RACI

Guiding cameras: Zwo ASI 120 MM-S

Focal reducers: Celestron Edge HD 800 f/0.7

Software: Software Bisque The SkyX Serious  ·  Topaz Labs DeNoise AI  ·  Celestron CPWI  ·  PHD2 Guiding  ·  Adobe Photoshop Version: 21.1.3  ·  PixInsight  ·  APT

Filters: ZWO 1.25" L  ·  Zwo Green 1.25"  ·  Zwo Blue 1.25"  ·  ZWO Red 1.25"

Accessory: Zwo 8 position 1.25" Filter wheel  ·  Skyshed POD


Dates:Feb. 16, 2021

Frames:
ZWO 1.25" L: 22x240" (1h 28') (gain: 100.00) -35C bin 1x1
ZWO Red 1.25": 24x240" (1h 36') (gain: 100.00) -35C bin 1x1
Zwo Blue 1.25": 21x240" (1h 24') (gain: 100.00) -35C bin 1x1
Zwo Green 1.25": 22x240" (1h 28') (gain: 100.00) -35C bin 1x1

Integration: 5h 56'

Avg. Moon age: 4.46 days

Avg. Moon phase: 20.88%

Bortle Dark-Sky Scale: 3.00

Mean SQM: 20.60


Astrometry.net job: 4233085

RA center: 13h 29' 54"

DEC center: +47° 12' 10"

Pixel scale: 0.532 arcsec/pixel

Orientation: -96.688 degrees

Field radius: 0.329 degrees


Resolution: 3556x2667

Data source: Backyard

Comments

Revisions

  • Messier 51: The Whirlpool, 



    
        

            David Redwine
    Original
  • Messier 51: The Whirlpool, 



    
        

            David Redwine
    B
  • Final
    Messier 51: The Whirlpool, 



    
        

            David Redwine
    C

B

Description: 2X Drizzle for noise reduction. Applied a 2 pixel Gauss blur then resampled 50% (both in PS). This gives a much smoother image to start with although it did seem to lose a little color (mostly green).

Uploaded: ...

C

Description: Cleaned-up some dry pixels in the core of the galaxy. Dry pixels from drizzle are common in bright low contrast regions. Slightly increased the contrast in the M51b structures.

Uploaded: ...

Sky plot

Sky plot

Histogram

Messier 51: The Whirlpool, 



    
        

            David Redwine