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Contains:  Great Cluster in Hercules, M 13, NGC 6205
Getting plate-solving status, please wait...
Messier 13 (Crop) Optictest after mirrorcleaning, flocking and collimation, 



    
        

            Anton Karl Seewal...
Messier 13 (Crop) Optictest after mirrorcleaning, flocking and collimation
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Messier 13 (Crop) Optictest after mirrorcleaning, flocking and collimation

Technical card

Imaging telescopes or lenses:skywatcher 200/1000

Imaging cameras:Canon EOS 100D

Mounts:Skywatcher HEQ5 PRO

Software:GIMPDeepSkyStacker 3.3.6

Accessory:Baader MPCC Mark III Coma Corrector


Frames: 14x120" ISO400

Integration: 0.5 hours

Darks: ~40

Bias: ~25

Temperature: 15.00


Basic astrometry details

Astrometry.net job: 1230884

RA center: 16h 41' 31"

DEC center: +36° 24' 39"

Pixel scale: 3.422 arcsec/pixel

Orientation: -136.917 degrees

Field radius: 0.745 degrees


Resolution: 1316x851

Locations: Feldsternwarte WN-LW, Wiener Neustadt, Niederösterreich, Austria

Description

I disassemble all parts from my telescope, and flocking it from inside with light absorbing material. The idea behind flocking is to increase light absorbing properties of the inner surfaces of OTA by covering it with a special material. It allows absorbtion of the unwanted light, rather than reflecting it. In practice, in unbaffled tube, some stray light will always get to the eyepiece, but flocking can minimize the harm.

For details: http://www.seewald-czeczelich.at/startroopers/?page_id=492

Comments

Author

Reverend.Antun
Anton Karl Seewal...
License: None (All rights reserved)
2030
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Messier 13 (Crop) Optictest after mirrorcleaning, flocking and collimation, 



    
        

            Anton Karl Seewal...