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Old 12-05-2014, 02:31 AM
Renato1 (Renato)
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Renato1 is offline
 
Join Date: Mar 2014
Location: Frankston South
Posts: 1,279
Quote:
Originally Posted by Steffen View Post
What is strange? The Horsehead being an elusive object? I'd say that's in line with what pretty much everybody says.



Have you seen it since?



Maybe he was the only honest chap of the bunch?



Yeah, I get that too sometimes from people who didn't even find the eyepiece...



I'm not entirely sure which eyepiece we used, but it was the best one available for the task at hand, I'm quite confident of that. Alex put an OIII+Hb filter in, as far as I remember.

Cheers
Steffen.
It was a members night, not a public night for newbies - everyone there owned telescopes and were experienced users. I just happened to have been one of the first to buy what was then an expensive filter.

I suspect that if an eyepiece giving a 6mm exit pupil or larger had been used, then the problem with the 17.5" lies with having stacked the O111 filter with the H-Beta. The O111 dims the image. It doesn't matter that it lets most of a band of light through, it still dims it. Every time I've tried any combination of stacking filters, including broadband, UHC and O111, the result has been junk - way too dim.
Regards,
Renato
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