Whitney's Star Finder: A Field Guide to the HeavensKnopf, 1974 - 97 pagine |
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Sommario
OBSERVING THE PLANETS WITH BINOCULARS | 13 |
Mercury in the fall and spring sky at twilight | 17 |
Venus moving in its orbit around the sun | 18 |
Copyright | |
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Whitney's Star Finder: A Field Guide to the Heavens Charles Allen Whitney Visualizzazione estratti - 1977 |
Parole e frasi comuni
Andromeda galaxy appear astronomers Big Dipper binoculars Boötes brighter camera Capricornus Celestial Equator clouds clusters colors Comet constellations crescent daily rotation distance Double Stars Earth Earth's axis Earth's orbit east elongations Figure Filter Time seconds focal length full moon galaxy Gemini greatest eastward hour hand indicated inferior conjunction interval July June Jupiter latitude Lens Opening light lunar eclipse magnitude Mars minutes minutes of arc month moon's orbit morning sky morning twilight motion naked eye ND Filter nebula night noon North Star opposite the sun Orbit of Mercury Orion pair of binoculars photographed Pisces Saturn Scorpius seen Sept small telescope solar eclipses solar system spring equinox star clock star disk star finder stick sun moves sun's path sundial sunlight sunset and sunrise Table total eclipse umbral shadow vanishes VARIABLE STARS Venus watch western horizon westward winter zodiac zone