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Old 06-12-2018, 10:35 PM
Wavytone
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Wavytone is offline
 
Join Date: Jul 2008
Location: Killara, Sydney
Posts: 4,147
Fahim 32mm in a C8 ( ie 62X) is not a good choice.

Last weekend in the MK91 at 220X (focal length 3100, eyepiece 14mm) in poor seeing Neptune was a very small blue-green disk, just discernible as non-stellar, and Mars was a small red disk with a phase visible, but no discernable markings. Tomorrow night in the MK91 - with 9" aperture - 300-400X will be nice if the seeing will play ball.

So I'd have to say in a C8 you will need a 9mm eyepiece and resolving Neptune will be not easy. I could loan one if you need.

However... we have a family member in serious ill health so at this stage I'd say its 50/50 for me. If I can make it I will set up the MK91 at Pirrima for a little while.

It may not seem like a great spectacle for many but the point is more to bring home to people that this is the real thing, they're seeing it with their own eyes - not a photograph and not (god help us) an "artistic rendering" (sorry Alex).

PS if you do bring the C8 and I'm able to make it, I'll volunteer to collimate it to get the best out of it.

FWIW its clear here and not too windy tonight, so fingers crossed for tomorrow.

Last edited by Wavytone; 06-12-2018 at 11:01 PM.
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