Index[A] [B] [C] [D] [E] [F] [G] [H] [I] [J] [K] [L] [M] [N] [O] [P] [Q] [R] [S] [T] [U] [V] [W] [X] [Z] Cannon car headlights car kits Cartes du Ciel (Sky Charts) software 2nd Cassegrain mirrors cataclysmic variable stars catadioptric telescopes 2nd 3rd 4th Cassegrain telescopes Maksutov variants Newtonian variants Schmidt-Cassegrain (SCT) scopes Schmidt-Newtonian scopes catalytic heaters celestial coordinate systems 2nd 3rd 4th 5th 6th 7th 8th 9th 10th Declination ecliptic coordinates equatorial coordinates galactic coordinates precession Right Ascension celestial equator Celestron SkyMaster series giant binoculars central obstructions (COs) Cepheid variable stars charts eyepiece chemical heat packs Cheshire eyepieces Chevalley chromatic aberration CIST (correct-image civil twilight cleaning primary mirrors Dobsonian telescopes heavy mirrors clock drives clothing Coleman heaters collimation 2nd 3rd 4th diffraction patterns fast focal ratios and Newtonian reflectors primary mirrors secondary mirror secondary mirror collimation secondary mirror retaining screw issues physical versus optical lens center star collimation star defocusing and types collodion color filters 2nd 3rd 4th acetate color filters comets meteor storms and cones cone types constellations 2nd 3rd as observing aids constellation sweeps 2nd Declination genitive form of name modern constellations pronunciation table data cool-down time 2nd correct-image cotton swabs and balls counterweighting Dobsonian telescopes magnets Crab Nebula |