Entire Astrophysics course online. Very extensive introduction course to stars.
Illustrated tutorial about stars, their properties, formation, and death. Includes related links.
Behavior of stars, generation of energy, their origin, and life cycle. Also includes a wide range of interesting pictures of galaxies and related phenomena that can be observed in the universe through telescopes.
Provides detailed information about stars: positions, proper motion, radial velocity, magnitudes, spectral class, color index, catalogue references, data about multiple star systems (i.e. orbital elements), and data about variability (min./max. brightness, period, type of variability).
Highly-detailed but brief paper concerning the Classical Fission Hypothesis.
The primary purpose of this website is to distribute information related to the positions and motions of the stars and planets, mainly to the Defense community.
Binocular and naked eye guide to the constellations, a data table, and mythology.
A small Hubble telescope image gallery of Quasars.
A listing of the Hawaiian Astronomical Society Deepsky Atlas by constellation.
Three high resolution star maps in .tif format for download. Tycho, Hipparcos and Yale bright star maps available.