[vsnet-chat 5420] Re: Spectrum of Antares

[Brian Skiff <Brian.Skiff@lowell.edu>]

>> ...recent spectrum I took of Antares...
>> http://members.aol.com/dwest61506/page4.html

     It is an interesting exercise to try to identify the stronger features
in Doug's spectrum.  Among the obvious stuff is:  the strong narrow line
near the left side at 5890A is of course the sodium D lines (a pair that
are a few Angstroms apart).  The broad absorption between 6200A and 6300A
is a TiO band with the bandhead at 6158A.  The right line of the pair
near 6600A is H-alpha, but I can't identify the left one.  The strong line
at the right edge of the panel is the bandhead of the terrestrial B band
due to molecular oxygen (lettered 'B' by Fraunhofer just as the sodium lines
are D, calcium H & K lines in the blue, etc.).

\Brian

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