Solar activity today
A very large sunspot is just coming into view on the sun's advancing limb, reminiscent of the big spot on the day of the Mercury transit- I wonder if it's the same spot rotated back around- though the latitude looks different. There is also a very active region nearer the receding limb, consisting of an obvious pair with smaller spots around them. I get the feeling that with more aperture and better transparency I would see ever smaller spots in this group. The little solar scope that I keep in my office is a 50mm f/9 refractor that I built around a WW2 vintage Eastman Kodak objective, on a table-top tripod. Just right for quick looks at lunchtime. ____________________________________________________________________________________ Need a quick answer? Get one in minutes from people who know. Ask your question on www.Answers.yahoo.com
--- Chuck Hards <chuckhards@yahoo.com> wrote:
A very large sunspot is just coming into view on the sun's advancing limb, reminiscent of the big spot on the day of the Mercury transit- I wonder if it's the same spot rotated back around- though the latitude looks different.
There is also a very active region nearer the receding limb, consisting of an obvious pair with smaller spots around them. I get the feeling that with more aperture and better transparency I would see ever smaller spots in this group.
The little solar scope that I keep in my office is a 50mm f/9 refractor that I built around a WW2 vintage Eastman Kodak objective, on a table-top tripod. Just right for quick looks at lunchtime.
LOL, I'm wondering if most of us don't have an obsession with all things optical. The fact that Chuck has WWII optical anything is a testament to this wonderful "disease"! But all that aside, thanks for the heads-up Chuck. I too often forget about the sun (unless I'm thinking longingly about outdoor volleyball and how many weeks I have to wait for spring weather...) ____________________________________________________________________________________ Any questions? Get answers on any topic at www.Answers.yahoo.com. Try it now.
Guilty. And you don't know the half of it. I just finished a run of "eBayitis" and picked up several telescope mirrors: A 6" f/5; 8" f/5, 10" f/6. The 10" is a new-in-the-box Pyrex Meade, the other two are Chinese-make plate glass. All three together cost right around $400 before shipping charges. And they all show essentially perfect Ronchi bands. The 6" is intended to be a large "finder" for my 17.5" though I may swap it for a 6" Pyrex mirror I've had for some years. But there is comfort in knowing my disease! --- Richard Tenney <retenney@yahoo.com> wrote:
LOL, I'm wondering if most of us don't have an obsession with all things optical. The fact that Chuck has WWII optical anything is a testament to this wonderful "disease"!
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participants (2)
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Chuck Hards -
Richard Tenney