Hemisphere:  Northern  ·  Constellation: Ursa Major (UMa)  ·  Contains:  M 101  ·  M101  ·  NGC 5457  ·  NGC 5477  ·  NGC5447  ·  NGC5449  ·  NGC5450  ·  NGC5451  ·  NGC5453  ·  NGC5455  ·  NGC5461  ·  NGC5462  ·  NGC5471  ·  NGC5477  ·  Pinwheel galaxy
Getting plate-solving status, please wait...
M101 HRGB Image, 



    
        

            Eric Coles (coles44)
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M101 HRGB Image

Getting plate-solving status, please wait...
M101 HRGB Image, 



    
        

            Eric Coles (coles44)
Powered byPixInsight

M101 HRGB Image

Imaging telescopes or lenses: Astro Physics 305 mm f/3.8 Riccardi-Honders Astrograph  ·  RCOS 16" RC f/9

Imaging cameras: SBIG STXL 16200

Mounts: Paramount-ME II ME

Guiding telescopes or lenses: Astro Physics 305 mm f/3.8 Riccardi-Honders Astrograph  ·  RCOS 16" RC f/9

Guiding cameras: SBIG STXL 16200

Software: Pixinsight 1.8  ·  Photoshop CS5  ·  Maxim DL Pro 5

Filters: Astrodon Luminance Tru-Balance E-Series Gen 2  ·  Astrodon Red Tru-Balance E-Series Gen 2  ·  Astrodon Blue Tru-Balance E-Series Gen 2  ·  Astrodon Green Tru-Balance E-Series Gen 2  ·  Astrodon H-alpha 3 nm


Dates:May 4, 2018May 5, 2018May 7, 2018

Frames:
Astrodon Blue Tru-Balance E-Series Gen 2: 12x600" (2h) bin 1x1
Astrodon Green Tru-Balance E-Series Gen 2: 12x600" (2h) bin 1x1
Astrodon Luminance Tru-Balance E-Series Gen 2: 72x600" (12h) bin 1x1
Astrodon Red Tru-Balance E-Series Gen 2: 12x600" (2h) bin 1x1

Integration: 18h

Avg. Moon age: 20.13 days

Avg. Moon phase: 70.23%


Astrometry.net job: 2054584

RA center: 14h 3' 11"

DEC center: +54° 20' 56"

Pixel scale: 1.104 arcsec/pixel

Orientation: 21.213 degrees

Field radius: 0.651 degrees


Resolution: 3000x3000

Locations: Sierra Remote Observatories, Shaver Lake, California, United States

Data source: Unknown

Description

Here is the M101 HLRGB image using the luminance image posted a couple of days ago. Some of the detail comes from one of my previous images of M101 taken with the 16" RCOS. Especially the highlighting of the emission nebula in the galaxy from the H-alpha data.

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M101 HRGB Image, 



    
        

            Eric Coles (coles44)

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Narrowband imaging