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Old 19-06-2007, 08:17 PM
Dennis
Dazzled by the Cosmos.

Dennis is offline
 
Join Date: May 2005
Location: Brisbane
Posts: 11,823
Zeta 1 Aqr, Gamma PsA, Eta PsA & 53 Aqr

Hello,

I saved the closest doubles for last as they required the most post capture processing to show the components cleanly.

Ron Wodaski’s “CCD Calculator” tells me that the Mewlon 180 F12 with an x2 Barlow and DBK 21AF04.AS CCD camera gives me an image scale of 0.27 arcsec/pixel and SkyTools tells me the Dawes limit for the Mewlon 180 F12 is 0.6 arcsec.

Eta Pisces Austrinus is cleanly split at a separation of 1.82 arcsecs with the image made up of 8 frames from 1200 stacked in Registax.

For a night of 3 to 4/10 seeing, it does show that a webcam capturing frames at 15 fps can still record the occasional moment of steady seeing when it occurs.

Cheers

Dennis
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Last edited by Dennis; 19-06-2007 at 08:29 PM.
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