Hemisphere:  Northern  ·  Constellation: Canes Venatici (CVn)  ·  Contains:  M 3  ·  NGC 5272
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M3, 



    
        

            David Redwine
M3
Powered byPixInsight

M3

Getting plate-solving status, please wait...
M3, 



    
        

            David Redwine
M3
Powered byPixInsight

M3

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

Imaging cameras: ZWO ASI1600MC

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: Topaz Labs DeNoise AI  ·  Celestron CPWI  ·  PHD2 Guiding  ·  Adobe Photoshop Version: 21.1.3  ·  PixInsight  ·  APT

Filters: Baader Moon & Skyglow Filter 1.25"

Accessory: Skyshed POD  ·  Zwo Filter Wheel 1.25", 5 slot, Electric


Dates:June 14, 2020

Frames: 200x10" (33' 20")

Integration: 33' 20"

Avg. Moon age: 23.25 days

Avg. Moon phase: 38.42%


Astrometry.net job: 4351930

RA center: 13h 42' 11"

DEC center: +28° 22' 4"

Pixel scale: 0.534 arcsec/pixel

Orientation: 108.611 degrees

Field radius: 0.308 degrees


Resolution: 3326x2495

Locations: Bluff Creek Observatory, Coleman, MI, United States

Data source: Backyard

Description

When I shot this last Summer I had trouble getting PixInsight to stack the data so I stacked it is DSS, which over corrected. The results were terrible but I didn't have time to re-shoot.

Since last Summer I've learned the basics of adjusting RANSAC parameters in Pixinsight, so I am able to get a much better stack. I had started shooting too soon after Sunset so I had to clip 0.5% of the dark pixels just to be a able to stretch this to a reasonable level.

Looking back at my limited notes, I was shooting this with the roughly aligned CGX-L while waiting for the sky to get dark enough to start entering more stars into the alignment model.

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