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0001 <chapter id="astroinfo"> 0002 <title>The AstroInfo Project</title> 0003 0004 <para> 0005 Here you can find a collection of short articles that explain various 0006 astronomical concepts used in &kstars;. From coordinate systems to 0007 celestial mechanics, you can find answers to your questions here. 0008 </para><para> 0009 The articles sometimes also contain exercises that you can perform with 0010 &kstars; to illustrate the concept behind the article. 0011 </para> 0012 0013 &contents; <!--AstroInfo: Table of Contents--> 0014 0015 &skycoords; <!--AstroInfo: Celestial Coordinate Systems--> 0016 &cequator; <!--AstroInfo: Celestial Equator--> 0017 &cpoles; <!--AstroInfo: Celestial Poles--> 0018 &csphere; <!--AstroInfo: Celestial Sphere--> 0019 &ecliptic; <!--AstroInfo: The Ecliptic--> 0020 &equinox; <!--AstroInfo: The Equinoxes--> 0021 &geocoords; <!--AstroInfo: Geographic Coordinates--> 0022 &greatcircle; <!--AstroInfo: Great Circles--> 0023 &horizon; <!--AstroInfo: Horizon--> 0024 &hourangle; <!--AstroInfo: Hour Angle--> 0025 &meridian; <!--AstroInfo: Local Meridian--> 0026 &precession; <!--AstroInfo: Precession--> 0027 &zenith; <!--AstroInfo: The Zenith--> 0028 0029 &epoch; <!--AstroInfo: Epoch--> 0030 &julianday; <!--AstroInfo: Julian Day--> 0031 &leapyear; <!--AstroInfo: Leap Year--> 0032 &sidereal; <!--AstroInfo: Sidereal Time--> 0033 &timezones; <!--AstroInfo: Time zones--> 0034 &utime; <!--AstroInfo: Universal Time--> 0035 0036 &telescopes; <!--AstroInfo: Telescopes--> 0037 0038 &blackbody; <!--AstroInfo: Blackbody Radiation--> 0039 &darkmatter; <!--AstroInfo: Dark Matter--> 0040 &flux; <!--AstroInfo: Flux--> 0041 &luminosity; <!--AstroInfo: Luminosity--> 0042 ¶llax; <!--AstroInfo: Parallax--> 0043 &retrograde; <!--AstroInfo: Retrograde Motion--> 0044 0045 &ellipgal; <!--Elliptical Galaxies--> 0046 &spiralgal; <!--Spiral Galaxies--> 0047 &magnitude; <!--AstroInfo: The Magnitude Scale--> 0048 &stars; <!--AstroInfo: Stars: An Introductory FAQ--> 0049 &colorandtemp; <!--AstroInfo: Star Colors and Temperatures--> 0050 &cosmicdist; <!--AstroInfo: Cosmic distance ladder--> 0051 0052 </chapter>