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Dob vs Refractor

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15 years 5 months ago #79189 by lunartic_old
Replied by lunartic_old on topic Re:Dob vs Refractor
Here is an article on Cloudynights about off aperture masking:

www.cloudynights.com/item.php?item_id=548

Paul
Programming today is a race between software engineers striving to build bigger and better programs, and the universe trying to produce bigger and better idiots. So far, the universe is winning.

Rich Cook

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15 years 5 months ago #79570 by efla
Replied by efla on topic Re:Dob vs Refractor
If I could bother you good people with one further question (beofre I had over...)

I'm more or less decided on a 5" cassegrain f/11.81. As I understand it will offer sharp contrast for planetary viewing, and allow a reasonable level of deep sky work.

My question is, are there any reasons to go for either a 10" dob, or 8" reflector? I know the extra aperture will offer more for fainter mag objects, but would I lose any detail/magnification in planets?

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15 years 5 months ago #79571 by dave_lillis
Replied by dave_lillis on topic Re:Dob vs Refractor
efla wrote:

I know the extra aperture will offer more for fainter mag objects, but would I lose any detail/magnification in planets?

If the optics are bad then yes, otherwise you'll see more in a bigger Dob most of the time.
Dave L. on facebook , See my images in flickr
Chairman. Shannonside Astronomy Club (Limerick)

Carrying around my 20" obsession is going to kill me,
but what a way to go. :)
+ 12"LX200, MK67, Meade2045, 4"refractor

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