"I.N. Galidakis" wrote in message
news:1193963847.410582@athprx03...
Chris L Peterson wrote:
On Thu, 1 Nov 2007 21:40:58 +0200, "I.N. Galidakis"
wrote:

do you or anyone else have spectral data on Holmes?

Check out John Menke's report at
http://menkescientific.com/Comet17P-Holmes.pdf

Many thanks!

Such as what kind of spectrum does it have and what are the most
prominent elements that show on its spectrum?

CN, C2, NH2.
[snip]

What's C2?


Diatomic carbon molecule. I believe (without checking references) this one
is responsible for Swan bands in the rare red giant carbon stars also.

NOT ionized carbon atom as found in B stars.

Thanks again,

Chris L Peterson
Cloudbait Observatory
http://www.cloudbait.com
--
I.N. Galidakis



--
Mike Dworetsky

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