What people are saying - Write a review
We haven't found any reviews in the usual places.
WHAT IS THE SUN?
PIG PAGE 28 Eyepiece of the Coude equatorial at Paris Observa
THE INTERIOR PLANETS MERCURY ANDVENUS
47 other sections not shown
angle aphelion appearance asteroids astronomers astronomical units atmosphere attraction axis bodies bright calculated Cassini's division celestial celestial sphere centre clouds clusters colour comets conclusion curves density diameter disc discovery distance Earth ecliptic equator equatorial existence explain fact formed gases globe globular clusters heavens Herschel investigation Jupiter Jupiter's known layers less light light-years lines lunar Mars mass means measured Mercury meteorites meteors method miles per second Milky millions minor planets Moon Moon's Moreux movement moving nebulae Neptune Observatory observed orbit parallax Paris particles perihelion period phenomena phenomenon photographic photosphere planet position possible problem produced proper motions question radiation radius recent regard region result retrograde revolution revolve Revue ring rotation round satellite Saturn seems seen solar system spectroscope sphere spots stars stellar sun-spots Sun's suppose surface telescope temperature theory Uranus variable stars variations velocity Venus Verrier whole zodiacal light