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Re: [ATM] Advice on Solar scopes/observation
Ulhas is correct if you are not interested in white light observing.
However, if white light is what you're after, a very good ATM project is a
Dobson Firefly Sunscope...
http://members.aol.com/sfsidewalk/sunscope.htm
You can easily get away with a 4" aperture. No point having 6" for the sun.
It's not like you need to collect more light.
If you want to look at solar flares, then what you need to be building is an
H-Alpha filter... An H-Alpha filter is not an easy project. Building one
that works can turn into a lifetime endeavor... However, if you are very
skilled in precision slicing of Calcite crystals, you may be able to pull it
off. Anthony should chime in on this one though... he's actually tried
it...
RO
----- Original Message -----
From: "Ulhas Deshpande" <ulhas_ngp@sancharnet.in>
To: "ATM" <atm@atmlist.net>
Sent: Saturday, June 17, 2006 5:50 AM
Subject: [ATM] Advice on Solar scopes/observation
> Paul wrote
>>>
>
> I'm looking for somebody who's feeling helpful and preferably who has
> experience building a scope with the specific intention of observing the
> sun, or modifying existing equipment for solar observation. I'm hoping to
> build a 6" with a dedicated purpose and there seem to be a few options
> available.
>
> <<
>
> Unless your main interest is solar observation in white light why not
> build a SpectroHelioScope (SHS). You can then see the Sun in different
> wavelengths.go to www.spectrohelioscope.net or join the Spectrohelioscope
> group on Yahoo for more.
>
> Best of Luck
> Ulhas
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>
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