Re: [ap-ug] [ap-gto] Large sunspot emerging

Oct 17, 2014



#69293 Oct 17, 2014

That could make next Thursday���s partial eclipse more interesting to observe. We have some AstroSolar filter material that can be shipped on Monday, if anyoneneeds any. In most cases, you will need to request faster service to receive it in time. ��I hope that the weather is clear here.

��Clear Skies, ��Marj ChristenAstro-Physics, Inc11250 Forest Hills RdMachesney Park, IL 61115Phone: 815-282-1513Fax:

��From: []

Sent: Friday, October 17, 2014 5:19 PM


Subject: [ap-gto] Large sunspot emerging


#69295 Oct 20, 2014

I am interested to read thoughts from group members on visually observing the upcoming partial solar eclipse.

Here in Central Florida, only 10 or 11% of the sun is predicted to be obscured and pretty much occurring at sunset so it may be a challenge to eek out very much.

I have several pairs of "eclipse glasses": the inexpensive card board type with solar film.

Also, I have a Coronado 60 MaxScope 60 made when David Lunt owned the Coronado (I won't list all the telescopes-it is a bit embarrassing).

I have read older postings here about Herschel wedges in the past and have been intrigued by them but have��always��felt hesitant despite the assurances that they do not damage our refracting telescopes or eyes.

The Baader 2" Herschel Wedge looks incredibly well built, especially the "Version P" which I assume would be great for both visual and photographic use.

I hope that I do not step on anyone's toes in asking how much of a step down the much more affordable Lunt��Herschel Wedges are and in what way the Lunt vs Baader vary.

There is a very tall parking garage near by that I have used to view rocket launches. ��

It has be best local view of the horizon that I know of and would probably help to get the best view of the setting sun during the partial eclipse.

Glenn T.��


#69300 Oct 21, 2014

"how much of a step down the much more affordable Lunt��Herschel Wedges are and in what way the Lunt vs Baader vary."

��Having never viewed through either one I can't comment on their differences but will say that the best white light views of the sun that I've ever seen have been through my home made Herschel wedge that employs an old Edmund $40 wedge and welder's glass (#12?) filter. The images seen through a Herschel wedge are clear and sharp, far more finely detailed than any objective filter (film or glass) that I've ever observed with.

��Buy whatever fits you pocketbook and I think you'll be happy with it. I've viewed the sun for many years with a variety of refractors (including AP oiled ones) and have never experienced a problem with any of them. I also have a PST and plan to view with both.



#69301 Oct 21, 2014

I used to use standard white light filter in front of the telescope (Class A Identi-View Solar glass filter in my case). I recently got a LUNT Solar Wedge ( 1.25. ) and the view is a lot better and so his my solar imaging now.

How does it compare to the more expensive Baader .. I don.t know as I never had a look through one.

Regards, Rodolphe


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