Astronomy Hacks: Tips and Tools for Observing the Night Sky
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] Ebony Star laminate 2nd eclipsing binary variable star systems ecliptic coordinates entrance pupil size light pollution and ephemerides epoch 2nd equatorial (EQ) coordinate system equatorial (EQ) platforms 2nd 3rd 4th building Johnsonian platforms Osypowski platforms equatorial (EQ) telescope mounts equatorial coordinates equatorial mounts astrophotography and erupting variable stars etiquette arrival time binoculars children and pets equipment headlights moving about parking red lights respect for equipment smoking trash exit pupils extended objects extent visual versus photographic extrinsic variable stars eye patches and dark adaptation eye relief Barlowed eyepieces and eyepieces barrel size choosing cleaning 2nd 3rd 4th economy models edge performance eye relief eyepiece charts 2nd 3rd 4th eyepiece sets 2nd 3rd 4th 5th 6th 7th 8th 9th 10th 11th 12th 13th 14th 15th 16th 17th filter threading focal length focal ration and mechanical and optical quality premium quality models quality models semi-premium models 2nd 3rd 4th size and weight eyes |