The Stars in Their CoursesMacmillan, 1931 - 188 páginas |
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Términos y frases comunes
31 in Andromeda astronomer atoms bright stars brightest Cassiopeia Cepheus Cetus clouds colony Coma Berenices constellations Copernicus course Craters diameter direction in space distance dust earth turns round earth's atmosphere earth's axis electrons face fainter filament fixed stars gravitational pull gyroscopic compass heat huge hydrogen light journey known Kodaikanal Plate light reflected Little Bear Lunar Detail Mare Imbrium Mercury meteor miles a second molecules moon moon's surface mosphere motion Mount Wilson Observatory mountains nearer nearest night after night nucleus objects ordinary Orion oxygen Paris Observatory particles photographed in hydrogen Piccadilly Circus Plate XII Pluto Pole Star prominence Proxima Centauri rapidly rocket round the sun shewn ship Sirius Solar prominences solar system speed spinning-top stellations substance Sun photographed sun's atmosphere sun's centre sun's surface sunlight tail Taurus telescope temperature tidal pull to-day Ursa Ursa Major Venus volcanic ash whole earth whole sky Wilson Observatory Plate