Memoirs of the Royal Astronomical Society, Volum 3

aberration achromatic Aldebaran Angle Anonym apparent April Aquarii Argûs ASTRON Astronomical Astronomical Society BAILY BEAUFOY bord bright limb Bushey Heath calculated catalogue comet computed Connaissance des Tems Correction Cygni dark limb Decl Diff difference disk disque distance double star eclipses Emersion equations error Fahr formulæ FRANCIS BAILY Greenwich high and clear-observation Immersion instrument interval June l'étoile labour Large star latitude lens Leonis LOND London lune magnitude MARK BEAUFOY Maskelyne Mean Longitudes Medal meridian Messier moon Moon's 1st Limb Moon's age nebula northern declination increasing np or sf nutation object-glass Occultation orbit Orionis Paramatta Pegasi Perihelion PIAZZI Piscium Planet high pole star precession Quadrant rays refraction Regulus Remarks right ascension Royal Observatory seconds Sept sidereal small star spherical aberration Spica star's STRUVE'S Tauri telescope THOMAS BRISBANE tion transit Triple tude Twice observed Ursa vations Virginis zenith