Peter's Astro-spectroscopy Page
These are a few web pages I'm putting together to show my results of
experimenting with a 200 lines/mm star analyser. This is a relatively
cheap diffraction grating that comes in a 1.25" filter holder, so that
it can be screwed into the eyepiece of most telescopes. However to get
the most out of it you really need to connect up a camera, then you can
record much fainter stars and start to investigate their main
characteristics .
The motivation for this is :-
- To show what can be done today, relatively cheaply, thanks to modern electronics.
- If you want to do some practical astronomy ( excluding the Sun ) then the
only sure thing you know you can always see at night if the sky is
clear, are stars. But let's face it ordinary stars can look rather
boring, no matter how big a telescope you use, a star just looks
like.....a star. But looking at their spectra gives each star it's own
identity, and trying to understand what the results are telling you is where it becomes interesting.
Index
Equipment I'm using to record the spectra
First look at some Wolf-Rayet stars
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