Sun in H-a

Gang,

I had a great three hours of solar viewing yesterday with the PST I got two
and a half years ago. Absolutely fabulous views, both Cyclops and
binoviewer mode.

Now, all that did was make me want a double-stacked 90 even more than I did
before, but I can't possibly afford the more-than-twelve grand to purchase
one. Anybody have one they'd be willing to give me? :^)

Clear Dark Steady Skies (and we've already had more of these this year than
all of last year!)
Dave Jessie

Dave Jessie wrote:

Gang,

I had a great three hours of solar viewing yesterday with the PST I got two
and a half years ago. Absolutely fabulous views, both Cyclops and
binoviewer mode.

Now, all that did was make me want a double-stacked 90 even more than I did
before, but I can't possibly afford the more-than-twelve grand to purchase
one. Anybody have one they'd be willing to give me? :^)

HINT PST modification with large aperture ERF /HINT


Clear Dark Steady Skies (and we've already had more of these this year than
all of last year!)

Anthony.

Dave Jessie

Anthony Ayiomamitis wrote:
Dave Jessie wrote:
CLIP
I can't possibly afford the more-than-twelve grand
to purchase one. Anybody have one they'd be willing to give me? :^)

HINT PST modification with large aperture ERF /HINT

Does this work well? Safely?
It appears that it should, if the focal length is long enough. Has
anyone reading built a large aperture H-a instrument using this
approach? Care to comment?

lal_truckee wrote:
Anthony Ayiomamitis wrote:

Dave Jessie wrote:

CLIP
I can't possibly afford the more-than-twelve grand

to purchase one. Anybody have one they'd be willing to give me? :^)


HINT PST modification with large aperture ERF /HINT


Hi there,


Does this work well? Safely?
It appears that it should, if the focal length is long enough. Has
anyone reading built a large aperture H-a instrument using this
approach? Care to comment?

I am in the process of going down this path. I just received a Daystar
130mm ERF and which I will be mounting on my AP160. I was hoping to be
able to do something with my Coronado SM60/BF10 at the focuser end but
we have the central obstruction of the SM60. As a result, I will also
have to pursue a PST and which I will disassemble and proceed accordingly.

Here is something to wet your apetite:
http://www.cloudynights.com/ubbthrea.../o/o/fpart/all

Anthony.