M51

Started Apr 15, 2013 | Photos thread
mike clemens
Regular MemberPosts: 118
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Re: M51
In reply to RustierOne, Apr 17, 2013

RustierOne wrote:

mike clemens wrote:

Another from the TEC200 ED f/9 refractor and the modified EOS T2i

54 x 5 mins @ ISO1600

mike in alaska

Hi Mike,

Thanks for sharing another spectacular image. I've greatly enjoyed all you've posted. Of course M51 with NGC 5195 is always a joy to behold. Also evident in upper right is IC 4263, a 14.5 magnitude spiral galaxy appearing nearly edge-on. The magnified view shows it to be interesting in that its disc appears to be twisted. There's always a lot of interesting things in our images.

All of you refractor astronomers will make a believer of me yet. Having an 8-inch like yours is a rare thing, indeed. What are the specifics about your telescope - make, f/#, focal length, ED?

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Best Regards,
Russ

Hi Russ

My scope is a "TEC" make, a company in Colorado. It is a 200mm aperture, f/9 design that runs at 1820mm focal length with the field flattener.  It is an oil spaced triplet refractor, with a center element of ED "FPL51" glass. Here are some pics of it:

http://www.pbase.com/mclemens1969/pictures_of_the_tec200ed

best wishes
Mike

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