Norton's 2000.0: Star Atlas and Reference Handbook (epoch 2000.0)Longman, 1998 - 180 pagine |
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Norton's Star Atlas and Reference Handbook (epoch 2000.0). Arthur Philip Norton,Ian Ridpath Anteprima non disponibile - 1998 |
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altitude angle aperture appear arcsec Astronomical Atlas atmosphere axis belts binoculars bright brighter Catalogue celestial equator celestial sphere centre clouds colour comets components constellation craters diameter Diffuse Nebula disk distance double stars Earth eclipse ecliptic Elliptical galaxy equatorial equinox example exposure eyepiece field of view film filters focal length galactic Globular cluster greatest elongation h h h hemisphere horizon Jupiter known latitudes lens light longitude luminosity lunar magnification magnitude Mare Mars measured Mercury meridian meteors minor planets mirror Moon motion noctilucent clouds Norton's novae object observer occultations Open cluster optical orbit Orion parallax perihelion period Planetary nebula polar pole position RA Dec radiation range refractor right ascension ring rotation satellites Saturn seen sidereal Slow binary spectral type spectrum Spiral galaxy stellar Sun's sunspots surface Table telescope temperature Ursae variable stars Venus visible visual wavelength