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Contains:  M 101, M101, NGC 5422, NGC 5457, NGC 5474, NGC 5485, NGC5368, NGC5422, NGC5447, NGC5449, NGC5450, NGC5451, NGC5453, NGC5455, NGC5461, NGC5462, NGC5471, NGC5473, NGC5474, NGC5477, NGC5484, NGC5485, NGC5486
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M101 Wide Field, 



    
        

            Riedl Rudolf
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M101 Wide Field

Technical card


Dates:March 16, 2020

Frames: 43x182" ISO1600

Integration: 2.2 hours

Darks: ~25

Flats: ~25

Bias: ~25

Avg. Moon age: 22.23 days

Avg. Moon phase: 49.12%

Bortle Dark-Sky Scale: 4.00

Mean SQM: 21.50

Temperature: -5.00


Astrometry.net job: 3332503

RA center: 14h 3' 4"

DEC center: +54° 19' 10"

Pixel scale: 3.159 arcsec/pixel

Orientation: 0.986 degrees

Field radius: 1.552 degrees


Resolution: 2938x1973

Locations: Home, St. Peter/O., Steiermark, Austria

Data source: Backyard

Description

This is a picture with the new Sharpstar 2032PNT. This is a slightly cropped FF picture. The Sensor in SLR cameras is deep inside the camera. Vignetting is therefore big. I still do have problems with Flats. They look strange - making the picture rather worse than better.
The overall optical quality of the scope is really good, the corrector gives sharp stars over the full field of view. Corrected field works with FF-cameras.

Comments

Author

RiedlRud
Riedl Rudolf
License: None (All rights reserved)
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M101 Wide Field, 



    
        

            Riedl Rudolf

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