Hemisphere:  Northern  ·  Contains:  M 101  ·  NGC 5422  ·  NGC 5457  ·  NGC 5473  ·  NGC 5474  ·  NGC 5485
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M 101: The Pinwheel Galaxy, 


            Marco Failli
M 101: The Pinwheel Galaxy
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M 101: The Pinwheel Galaxy

Technical card

Imaging telescopes or lenses: Tecnosky 80/480 Apo triplet fpl53

Imaging cameras: ZWO ASI294MC Pro

Mounts: Skywatcher EQ6-R PRO Synscan

Guiding telescopes or lenses: Sky-Watcher 70/500 Achro

Guiding cameras: ZWO ASI 120 MM Mini

Focal reducers: Tecnosky 0.8x Reducer/Flattener 4 elements

Software: PixInsight  ·  Adobe photoshop CC

Filters: IDAS LPS D1

Dates:April 22, 2020

Frames:IDAS LPS D1: 71x180" (gain: 120.00) -15C bin 1x1

Integration: 3.5 hours

Avg. Moon age: 28.98 days

Avg. Moon phase: 0.34%

Bortle Dark-Sky Scale: 8.00

Basic astrometry details

Astrometry.net job: 3454943

RA center: 14h 3' 11"

DEC center: +54° 21' 32"

Pixel scale: 2.460 arcsec/pixel

Orientation: 267.792 degrees

Field radius: 1.313 degrees

Resolution: 3197x2132

Locations: Terrazzo di casa, Prato, Prato, Italy

Data source: Backyard


I also added over 18 hours of Ha to this image on the galaxy, you can see the Ha picture on my profile!



Marco Failli
License: None (All rights reserved)


  • M 101: The Pinwheel Galaxy, 


            Marco Failli
  • Final
    M 101: The Pinwheel Galaxy, 


            Marco Failli

Sky plot

Sky plot


M 101: The Pinwheel Galaxy, 


            Marco Failli