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View Full Version here: : solar viewing.


mikemasey
09-06-2011, 07:27 PM
Just seen a recording of the latest solar action, very impresive. I already have a solar filter for my scope but would like a dedicated solar telescope so I can watch the suns activeties my self. What is the diference between the "H" alpha filters and the Calcium filters?
Which is best for solar flars and surface detail?:)

Merlin66
09-06-2011, 08:50 PM
The Ha solar scopes are the ones that show the surface detail and the proms.
The caK scopes have a filter (not a narrowband etalon) and show the surface in the Blue/UV of the spectrum. Better suited to imaging as the eye (especially in older people) is not very sensitive to that region - the views can be disappointing.
Ha is the way to go!

mikemasey
09-06-2011, 10:00 PM
Tx Merlin, looks like Ill have to save my pocket money!
Merlin66, Friend of King Arther or grubber?:thumbsup:

Merlin66
09-06-2011, 10:59 PM
I design Merlin engined Spitfires for flight simulators - the Merlin 66 was the best one ever made by RR.