Hemisphere:  Northern  ·  Constellation: Ursa Major (UMa)  ·  Contains:  M 101  ·  NGC 5447  ·  NGC 5449  ·  NGC 5450  ·  NGC 5451  ·  NGC 5453  ·  NGC 5455  ·  NGC 5457  ·  NGC 5461  ·  NGC 5462  ·  NGC 5471  ·  NGC 5477  ·  Pinwheel galaxy
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M101 - Pinwheel Galaxy, 



    
        

            Bill Long
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M101 - Pinwheel Galaxy

Getting plate-solving status, please wait...
M101 - Pinwheel Galaxy, 



    
        

            Bill Long
Powered byPixInsight

M101 - Pinwheel Galaxy

Acquisition details

Frames:
Astrodon Gen2E B: 62×300(5h 10′) bin 1×1
Astrodon Gen2E G: 60×300(5h) bin 1×1
Astrodon Gen2E L: 352×120(11h 44′) bin 1×1
Astrodon Gen2E R: 59×300(4h 55′) bin 1×1
Integration:
26h 49′

RA center: 14h03m13s.571

DEC center: +54°2124.87

Pixel scale: 0.719 arcsec/pixel

Orientation: -1.712 degrees

Field radius: 0.515 degrees

WCS transformation: thin plate spline

More info:Open 

Resolution: 4034x3223

File size: 12.9 MB

Data source: Backyard

Description

Pulled out some data I had largely forsaken as there were a number of challenges with it. I had my dithering set way too large for imaging unguided which can result in frames not lining up well at all when you go to register all of the data.

Thus, there is a fairly decent crop here of the native field on the ML16200 chip.

To add to this, my flats did not correct properly, and I have since sold both the camera and the telescope used for this, so I had to get pretty inventive to get the data reasonably cleaned up.

All in all I am surprised at how well it came out. While much better than a previous project I had on this target, this is one I plan to revisit with the 12.5" AG scope later.

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M101 - Pinwheel Galaxy, 



    
        

            Bill Long

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