Re: [ATM] Spectroscopy and fiber optic info needed

["Bob May" <bobmay@nethere.com>]

You have to remember that while a line may be at 646nm, when you put the
radial velocity into that, you may end up with the light actually being at
655nm and that would be a problem with the microprism and the frequency
dependant fiber involved.  You need to be wideband until you do the actual
detection of the line and where it is.
Such narrowband stuff may be great for terrestial stuff where the speed of
the luminous object can't shift the light very far but for astro work, it
just won't hack it well.
Bob May
http://nav.to/bobmay
bobmay@nethere.com
NEW! http://bobmay.astronomy.net