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 8
... obtained with the instrument exhibit the spectrum with very open scale , and many of the close double lines even in the cyanogen baud are well seen . The linear dispersion of the negatives is such that we have about 129 tenthmetres per ...
... obtained with the instrument exhibit the spectrum with very open scale , and many of the close double lines even in the cyanogen baud are well seen . The linear dispersion of the negatives is such that we have about 129 tenthmetres per ...
Page 12
... obtained at this observatory showing a considerable number of affected lines in the region A 3990-4350 . Owing to the intrinsic darkness of the spot band in the ultra- violet , a very long exposure is necessary , in photographing the ...
... obtained at this observatory showing a considerable number of affected lines in the region A 3990-4350 . Owing to the intrinsic darkness of the spot band in the ultra- violet , a very long exposure is necessary , in photographing the ...
Page 16
... obtained on the first - named date , with an ex- posure of half an hour . On September 3 the comet was obscured by cloud for about half the available time before daylight , and during this interval the opportunity was taken to ...
... obtained on the first - named date , with an ex- posure of half an hour . On September 3 the comet was obscured by cloud for about half the available time before daylight , and during this interval the opportunity was taken to ...
Page 64
... obtained by simple means . I am talking 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 ...
... obtained by simple means . I am talking 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 ...
Page 67
... of the admirable results he has himself obtained with a cheap " lantern lens " belonging to an ordinary stereopticon . * indeed like that drawing when the definition is good Nov. 1907 . 67 Work with Inexpensive Apparatus .
... of the admirable results he has himself obtained with a cheap " lantern lens " belonging to an ordinary stereopticon . * indeed like that drawing when the definition is good Nov. 1907 . 67 Work with Inexpensive Apparatus .
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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