Astronomy and Astrophysics
This page offers a broad (and necessarily idiosyncratic) range of selected topics from the fields of astrophysics and deep sky observational astronomy, with emphasis on the southern hemisphere. I have tried to provide complementary material to the usual fare available to fellow hobbyists, although, I’m sure, almost everything here is available elsewhere.
Although I’ve taken as much care as I can, of course I’m only an amateur, and may well make mistakes.
This page is still being rebuilt, but I am aiming to recreate the original three main sections: some general reference information, a survey of the main sequence stellar classes plus a few more exceptional types of star, and notes about some selected Southern Hemisphere observational targets.
Introduction
Stellar classification
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The Morgan-Keenan Spectral Classes
Rare or Unusual Stars
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Some Southern Objects
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