Monthly Notices of the Astronomical Society of London, Band 68Blackwell Scientific Publications, for the Royal Astronomical Society., 1908 |
Andere Ausgaben - Alle anzeigen
Häufige Begriffe und Wortgruppen
appear Astrographic Astronomical axis bright brighter calculated Cape Catalogue centre coefficient colour column comet comparison stars computed corrections correlation curve cyanogen David Gill deduced determination distance Double Stars drift E. E. Barnard Earth eclipse epoch equation equatorial Eyepiece 700 faint formula give given Greenwich groups heliometer instrument Julian Day Jupiter latitude lens Lick Observatory limb lines longitude magnitude Max Wolf mean measures meridian method Monthly Notices Moon nebula nucleus number of stars observations obtained orbit paper parallax Paris perihelion perihelion passage period perturbations photographs planet plates position Professor proper motion reduced reflector refraction refractor region right ascension ring Royal Observatory satellite Saturn seen Sept Society solar spectra spectral class spectroheliograph spectroscope spectrum spot stellar sun-spot Sun's Table telescope tion variable Yerkes Observatory zone ΙΟ
Beliebte Passagen
Seite 248 - ... the cornea, the aqueous humour, the crystalline lens and the vitreous humour.
Seite 66 - ... to-night, in purpose at least, to the amateur; but my definition of the amateur is perhaps a broader one than is generally accepted. According to my view, the amateur is the man who works in astronomy because he cannot help it, because he would rather do such work than anything else in the world, and who therefore cares little for hampering traditions or for difficulties of any kind.
Seite 249 - C du spectre solaire. En faisant mouvoir la fente du spectroscope, de manière à balayer méthodiquement la région que j'explorais, cette ligne persistait; mais elle se modifiait dans sa longueur et dans l'éclat de ses diverses parties, accusant ainsi une grande variabilité dans la hauteur et dans le pouvoir lumineux des diverses régions de la protubérance.
Seite 546 - An Example of Professor Karl Pearson's Calculation of Correlation in the case of the Periodic Inequalities of Long-period Variables.
Seite 305 - Some idea of the magnitude of the undertaking may be gathered from the fact that it had been in progress for thirteen years. With a very few exceptions the stars selected were those having proper motions exceeding 40" per century, and not hitherto observed for parallax.
Seite 150 - On the number of stars of determined magnitude and determined galactic latitude.