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(meteorobs) Correction to my message on meteor spectroscopy
Boy, I should read what I
type!!!
This should make more
sense: "Early meteor spectrographs record spectra very well, at the blue
end of the spectrum. At that time, prisms were used as the dispersive
element and they only provided good dispersion in this region. With a prism, the
red end is very crowded so lines are difficult to measure".
I'll try and be more careful next time and edit
what I say before I send it.
Ed