Monthly Notices of the Royal Astronomical Society, Volume 68; Volumes 1907-1908Priestley and Weale, 1908 Includes lists of additions to the society's library, usually separately paged. |
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Page 67
... telescopes . But I now wish to discuss the question somewhat more specifically , and in doing so I shall confine ... telescope of 4 inches or 6 inches aperture and wishes to observe the Sun with it ; and let us assume at the outset ...
... telescopes . But I now wish to discuss the question somewhat more specifically , and in doing so I shall confine ... telescope of 4 inches or 6 inches aperture and wishes to observe the Sun with it ; and let us assume at the outset ...
Page 68
... telescope would show ; but a 10 - inch or 12 - inch telescope would show everything that has ever been recorded in a sun - spot , and there are many instruments of that size available for such observations . † Even a much smaller telescope ...
... telescope would show ; but a 10 - inch or 12 - inch telescope would show everything that has ever been recorded in a sun - spot , and there are many instruments of that size available for such observations . † Even a much smaller telescope ...
Page 69
... telescope . A small one is very much more advantageous for work of this kind . As soon as possible we are going to set up a small equatorial for the purpose of seeing these objects and comparing them with our photographs , after having ...
... telescope . A small one is very much more advantageous for work of this kind . As soon as possible we are going to set up a small equatorial for the purpose of seeing these objects and comparing them with our photographs , after having ...
Page 70
... telescope , and many other phenomena which cannot be photographed at all can be seen with a similar equipment . There is a certain advantage in observing such spectra with a larger telescope , provided that the spot under consideration ...
... telescope , and many other phenomena which cannot be photographed at all can be seen with a similar equipment . There is a certain advantage in observing such spectra with a larger telescope , provided that the spot under consideration ...
Page 71
... telescope . So if we wish to have an instrument of great focal length , and yet keep down the expense to a reasonable figure , we must use a telescope of a different type . There are many other reasons why we should wish to use a fixed ...
... telescope . So if we wish to have an instrument of great focal length , and yet keep down the expense to a reasonable figure , we must use a telescope of a different type . There are many other reasons why we should wish to use a fixed ...
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Common terms and phrases
angle appear Astrographic axis bright brighter 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 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 outer condensation paper parallax Paris perihelion perihelion passage period perturbations photographs planet plates position present Professor proper motion reduced reflector refraction refractor region right ascension ring Royal Observatory satellite Saturn seen Sept solar spectra spectral class spectroheliograph spectroscope spectrum spot stellar sun-spot Sun's surface Table telescope tion variable Yerkes Observatory zone ΙΟ