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Contains:  NGC 5477, M 101, NGC 5457
Getting plate-solving status, please wait...
M101 - Pinwheel Galaxy HaLRGB, 


            Phil Brewer
M101 - Pinwheel Galaxy HaLRGB

M101 - Pinwheel Galaxy HaLRGB

Technical card

Resolution: 3000x1688

Dates:March 7, 2017March 10, 2017March 16, 2017March 21, 2017March 22, 2017

Astrodon 3nm Ha: 44x900" -15C bin 1x1
Astrodon E-Series Blue filter: 38x300" -15C
Astrodon E-Series Green filter: 36x300" -15C bin 1x1
Astrodon E-Series Red filter: 37x300" -15C bin 1x1
Hutech IDAS LPS P2 - 31mm: 116x300" -15C bin 1x1

Integration: 29.9 hours

Avg. Moon age: 17.46 days

Avg. Moon phase: 65.50% job: 1519015

RA center: 14h 3' 5"

DEC center: +54° 22' 33"

Pixel scale: 1.392 arcsec/pixel

Orientation: -179.979 degrees

Field radius: 0.666

Locations: Independence Park, Canton, Michigan, United States



Phil Brewer
License: Attribution-NonCommercial Creative Commons


  • M101 - Pinwheel Galaxy HaLRGB, 


            Phil Brewer
  • Final
    M101 - Pinwheel Galaxy HaLRGB, 


            Phil Brewer


Added more color subs and re-did the color processing. The resulting image is much better in mind.

Sky plot

Sky plot


M101 - Pinwheel Galaxy HaLRGB, 


            Phil Brewer