Hemisphere:  Northern  ·  Constellation: Ursa Major (UMa)  ·  Contains:  M 101  ·  NGC 5457  ·  NGC 5473  ·  NGC 5477
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M101 - Pinwheel Galaxy (Redone with PI), 



    
        

            Frank Schmitz
M101 - Pinwheel Galaxy (Redone with PI)
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M101 - Pinwheel Galaxy (Redone with PI)

Getting plate-solving status, please wait...
M101 - Pinwheel Galaxy (Redone with PI), 



    
        

            Frank Schmitz
M101 - Pinwheel Galaxy (Redone with PI)
Powered byPixInsight

M101 - Pinwheel Galaxy (Redone with PI)

Equipment

Imaging Telescopes Or Lenses
GSO 6" f/4 Imaging Newtonian Telescope
Imaging Cameras
ZWO Optical ASI1600MM-Cool Pro
Mounts
Skywatcher HEQ5 Pro
Filters
Baader Planetarium L 31mm · Baader Planetarium RGB 31mm · Baader Planetarium Ha 31mm 7nm
Accessories
ZWO Optical ZWO 5x1.25 MiniEFW · GPU Pal Gyulai GPU 2" Aplanatic Coma Corrector
Software
Seqence Generator Pro · Adobe Photoshop CC 2017 · Astro Pixel Processor
Guiding Telescopes Or Lenses
TS-Optics Deluxe 50 mm Guidescope
Guiding Cameras
ALccd / QHYCCD ALccd/QHY 5L-IIc

Acquisition details

Dates:
Feb. 15, 2018 ·  Feb. 22, 2018 ·  Feb. 24, 2018 ·  April 17, 2018
Frames:
Baader Planetarium Ha 31mm 7nm: 50x180" (2h 30') (gain: 139.00) -20°C bin 1x1
Baader Planetarium L 31mm: 120x180" (6h) (gain: 139.00) -20°C bin 1x1
Baader Planetarium RGB 31mm: 150x180" (7h 30') (gain: 139.00) -20°C bin 1x1
Integration:
16h
Darks:
30
Flats:
30
Bias:
100
Avg. Moon age:
11.45 days
Avg. Moon phase:
26.61%
Bortle Dark-Sky Scale:
5.00

Basic astrometry details

Astrometry.net job: 2018469

RA center: 14h02m51s.6

DEC center: +54°2313

Pixel scale: 1.197 arcsec/pixel

Orientation: 273.429 degrees

Field radius: 0.705 degrees

Resolution: 3293x2673

Description

Being on vacation at the moment I thought I work on my PI processing skill and rework my M101 (link above). Star shape not as nice as I would love them to be but that was mostly because of the old scope and the not so optimized working distance from the coma corrector to the cam. Would love to hear your comments what else could be improved.

Comments

Sky plot

Sky plot

Histogram

M101 - Pinwheel Galaxy (Redone with PI), 



    
        

            Frank Schmitz