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



    
        

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

M101 - Pinwheel Galaxy (Redone with PI), 



    
        

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

M101 - Pinwheel Galaxy (Redone with PI)

Technical card

Imaging telescopes or lenses: GSO 6" f/4 Imaging Newtonian Telescope

Imaging cameras: ZWO Optical ASI1600MM-Cool Pro

Mounts: Skywatcher HEQ5 Pro

Guiding telescopes or lenses: TS-Optics Deluxe 50 mm Guidescope

Guiding cameras: ALccd / QHYCCD ALccd/QHY 5L-IIc

Focal reducers: GPU Pal Gyulai GPU 2" Aplanatic Coma Corrector

Software: Adobe Photoshop CC 2017  ·  Astro Pixel Processor  ·  Seqence Generator Pro

Filters: Baader Planetarium L 31mm  ·  Baader Planetarium RGB 31mm  ·  Baader Planetarium Ha 31mm 7nm

Accessory: ZWO Optical ZWO 5x1.25 MiniEFW


Dates:Feb. 15, 2018Feb. 22, 2018Feb. 24, 2018April 17, 2018

Frames:
Baader Planetarium Ha 31mm 7nm: 50x180" (2h 30') (gain: 139.00) -20C bin 1x1
Baader Planetarium L 31mm: 120x180" (6h) (gain: 139.00) -20C bin 1x1
Baader Planetarium RGB 31mm: 150x180" (7h 30') (gain: 139.00) -20C 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: 14h 2' 51"

DEC center: +54° 23' 13"

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