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Hemisphere:  Northern  ·  Contains:  M 101, M101, NGC 5457, NGC5447, NGC5449, NGC5450, NGC5451, NGC5453, NGC5455, NGC5461, NGC5462, Pinwheel galaxy
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M101, 



    
        

            KuriousGeorge
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M101

Imaging telescopes or lenses: Celestron 8" EdgeHD

Imaging cameras: QSI 660 WSG

Mounts: G-11

Guiding cameras: Lodestar X2

Focal reducers: Celestron 0.7X

Software: Photoshop CS3  ·  PixInsight 1.8  ·  PHD Guiding 2  ·  Maxim DL6  ·  Neat Image V7  ·  Sequence Generator Pro  ·  Adobe Photoshop CC 2014

Filters: Astrodon 1.25" R  ·  Astrodon 1.25" B  ·  Astrodon 1.25" G

Accessory: Starizona MicroTouch Autofocuser  ·  Bahtinov Mask


Dates:Jan. 30, 2016Feb. 2, 2016Feb. 3, 2016

Frames:
Astrodon 1.25" B: 12x900" -20C bin 1x1
Astrodon 1.25" G: 12x900" -20C bin 1x1
Astrodon 1.25" R: 12x900" -20C bin 1x1

Integration: 9.0 hours

Darks: ~40

Flats: ~80

Flat darks: ~80

Bias: ~20

Avg. Moon age: 22.79 days

Avg. Moon phase: 43.38%


Astrometry.net job: 1040131

RA center: 14h 3' 12"

DEC center: +54° 21' 14"

Pixel scale: 0.638 arcsec/pixel

Orientation: -4.964 degrees

Field radius: 0.294 degrees


Resolution: 2060x2600

Locations: Home, Rancho Santa Fe, California, United States

Description

I was not so happy with my prior processing of M101. Given I had a lot of RGB data at 1x1 bin, I decided to just take the RGB data and process as little as possible for a very natural effect. Here there are no masks, no deconvolution, no sharpening, no color correction. Just background equalization, a simple stretch, soft light layering, and minimal noise reduction. Hope you enjoy it!

Comments

Author

KuriousGeorge
KuriousGeorge
License: None (All rights reserved)
3120
Like

Revisions

  • Final
    M101, 



    
        

            KuriousGeorge
    B

Sky plot

Sky plot

Histogram

M101, 



    
        

            KuriousGeorge