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Re: [Phys-l] [tap-l] absorption spectra

I think you can see absorption lines in the suns spectra... There were
these cheap transmission "spectrometers" made by the STAR project.

Of course you need a sunny day! Something you can't plan on here in
Buffalo in the winter.

George Herold

-----Original Message-----
From: [] On
Behalf Of Anthony Lapinski
Sent: Wednesday, October 29, 2008 12:26 PM
Subject: [tap-l] absorption spectra

In my high school astronomy class, I will be discussing light and
spectra soon. I wish to do a lab/activity where students can analyze
various light sources with a diffraction grating. It is easy to show
continuous spectra with a candle or light bulb, and emission spectra
with gas tubes. I am looking for a way to show an absorption spectrum.
In the past I had students use colored filters to cover an incandescent
light bulb. This sort of mimics the atmosphere of a star.

Does anyone have other ways to show absorption spectra using simple