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



    
        

            Frank Schmitz
Messier 101 - Pinwheel Galaxy
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Messier 101 - Pinwheel Galaxy

Messier 101 - Pinwheel Galaxy, 



    
        

            Frank Schmitz
Messier 101 - Pinwheel Galaxy
Powered byPixInsight

Messier 101 - Pinwheel Galaxy

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

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. 17, 2018Feb. 22, 2018Feb. 24, 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: 50

Flats: 30

Bias: 100

Avg. Moon age: 11.46 days

Avg. Moon phase: 26.62%

Bortle Dark-Sky Scale: 5.00

Temperature: -5.75


Basic astrometry details

Astrometry.net job: 1946932

RA center: 14h03m05s

DEC center: +54°2201

Pixel scale: 0.852 arcsec/pixel

Orientation: 273.266 degrees

Field radius: 0.716 degrees


Resolution: 4704x3815

Locations: Home, Odenthal, Deutschland, Germany

Description

Well, I am now officially running out of subs after the nice weather period we had here. This is the last one of my images taken over the last two weeks.

Here my attempt on M101. It is featured in AstroPixelProcessors Tutorial section: [Sticky] Star Color Calibration 1.58 (I couldn't get the star colors right in the beginning)

So great to see real world physics embedded in Astrophotography ... I love the star colors now that I found out how to correctly use the color calibration tool.

Second attempt this year on the Pinwheel. Now with some proper integration time! Love SGPro for letting me sleep So many galaxies to see on this one, really great to see what some 16ish hours can do on a little scope.

Also another one of my series "been there before last year": M101 by Frank Schmitz

Comments

Revisions

    Messier 101 - Pinwheel Galaxy, 



    
        

            Frank Schmitz
    Original
  • Final
    Messier 101 - Pinwheel Galaxy, 



    
        

            Frank Schmitz
    F

Sky plot

Sky plot

Histogram

Messier 101 - Pinwheel Galaxy, 



    
        

            Frank Schmitz