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Table des matières
INTRODUCTION | 1 |
A URANOLOGICAL PORTION of the physical description of | 29 |
Natural and telescopic vision 5196 Scintillation of the stars | 99 |
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Expressions et termes fréquents
1st magnitude 61 Cygni 6th magnitude 8vo pub according Aldebaran Almagest Annuaire appeared Arago Aratus Arcturus Argelander Aristot Astr Astron astronomers atmosphere Bessel brightness Cape Cassiopeia catalogue celestial centre century cloth colour comets Compare conjecture constellations cosmical bodies Cosmos Cygni d'une Decl determined diameter distance double stars earth Edition Engravings ether étoiles fainter fixed stars gilt Greek Hipparchus Hist instruments intensity of light Jupiter Kepler l'image l'œil lumière luminous lunette Lyræ Mädler ment Milky moon Nachr naked eye nature nebula number of stars object-glass observations Ophiuchus optical orbit parallax period phenomena Philos photometric physical planetary planets Plates portion proper motion Ptolemy quæ rayons rays reference refraction regions of space remarkable result right ascension satellites scintillation seen Sir John Herschel Sirius solar system sphere stellar strata Struve surface telescope terrestrial tion Tycho Brahe Ursæ variable stars vault of heaven velocity visible vision William Herschel