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Pacman test image with a Titan


Oct 31, 2008

 


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#40425 Oct 31, 2008

I've been working on a new collimation routine for the CCDInspector

software. To test the results of the collimation adjustments, I took

some test images over a period of three nights (scope was re-

collimated each night).



NGC281: total of 4 hours H-alpha exposure, ST10xme camera, a 10-year

old, beat-up Meade 10" SCT OTA at 2600mm FL, Titan50:



small:

pk.darkhorizons.org/latest/ngc281m.jpg



medium:

pk.darkhorizons.org/latest/ngc281.jpg



The star FWHM values during this test were record-setting for my

location. The lowest I've seen in an exposure of 20 minutes was FWHM

of 1.7 arcseconds, with most frames coming in under 2 arcseconds!



The combined stack of all the images had the final FWHM of just over

2 arcseconds, which is also a new record for me.



I guess I can attribute this result to my new collimation routine

G>, but probably good seeing and smooth guiding also helped :-)



Regards,



-Paul



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