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>
> Bill wrote:
> "If I recall the a list member stated a wee bit of side error can help  with
> star-to-star distances (as well as determining IE/IC with stars I  assume)."
>
> Well, that was me. So it's still only one vote! Alex checked Chauvenet, and
> apparently side error never leads to any significant real error.
>
>
> "I have never seen using a sunspot in texts. Is it fair game when  available,
> or did I just get lucky with my correlation?"
>
> Sounds like fair game to me. I've never seen it mentioned either. I  recently
> tried the Pleiades for an IC check, and it was distinctly easier  to detect a
> mis-alignment with a field of stars than with a single  star.

I was playing with that concept with Orion's belt the other evening.  I like
your idea better.  Will give it a try if the Sun comes out again.

Thanks

Bill

   

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