Holmes coma detail - October 30th

Chris L Peterson wrote:
[snip]

temperatures can
easily get much higher than the boiling point for many compounds
known to exist in comets (some of which show up in spectra for this
one).

Chris,

do you or anyone else have spectral data on Holmes?

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

Thanks,

[snip]

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

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


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

CN, C2, NH2.

_________________________________________________

Chris L Peterson
Cloudbait Observatory
http://www.cloudbait.com

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?

Thanks again,

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

"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

(Remove pants sp*mbl*ck to reply)

Like my daughter said when shw saw it at 75 X's..Awesome!

This is nice chart of cometary molecules at:
http://astrochem.gsfc.nasa.gov/cosmic-ice/dos/Cometary

"I.N. Galidakis" wrote:

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?

Thanks again,

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

"I.N. Galidakis" wrote:

Chris L Peterson wrote:
[snip]

temperatures can
easily get much higher than the boiling point for many compounds
known to exist in comets (some of which show up in spectra for this
one).

Chris,

do you or anyone else have spectral data on Holmes?

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


a number of good ones exist. Google /17P Holmes spectrum/ or /spectrum of...?

Major emissions are C2 around the Mg triplet at 5129,65, and 85.
C2+NH2 spikes in the CN A region at 5693, 5703, 5732.
Na at 5976 and 5995. The object is proving a challenge for
amateurs. There are some very nbice spectra on the web.
To your last CII is carbon.

.. ..







Thanks,

[snip]

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