NightWatch: An Equinox Guide to Viewing the UniverseCamden House Publishing, 1989 - 160 pagine Offers advice on observing the stars and constellations, discusses useful equipment, and includes information on the moon, comets, eclipses, and planets. |
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NightWatch: An Equinox Guide to Viewing the Universe Terence Dickinson Visualizzazione estratti - 1989 |
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amateur appear arms astronomers atmosphere backyard become belt Big Dipper binocs binoculars blue bright brighter brightest star called camera celestial Chapter Chart close clouds cluster colour comet constellation craters cube dark detail diameter disc distance double dust early Earth eclipse equipment eyepiece faint field four galaxy globular horizon images Jupiter known larger late least lens less light light-years look lunar magnitude major Mars meteor miles Milky million minutes moon mount names nearest Nebula Newtonian night North objects observing optical orbit Orion period photographs planet Pleiades produce prominent range refractor region reveal Saturn scopes seen shadow side sight skies solar space spiral star cluster stars summer surface tele telescope tion types unaided eye universe usually Venus visible wide winter