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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Results 1-5 of 15
Page 12
... spectroheliograph room , using as image lens the 12 - in . photo - visual lens usually employed for the spectroheliograph . The exposures given on spot and photo- sphere were as follows : - Plate exposed 1907 June 20. △ 3900-4140 . No ...
... spectroheliograph room , using as image lens the 12 - in . photo - visual lens usually employed for the spectroheliograph . The exposures given on spot and photo- sphere were as follows : - Plate exposed 1907 June 20. △ 3900-4140 . No ...
Page 65
... spectroheliograph had begun to take form , the possibility that its results could be greatly improved through the use of a larger telescope suggested itself , and for this reason I made many efforts to acquire a 5 Nov. 1907 . 65 Work ...
... spectroheliograph had begun to take form , the possibility that its results could be greatly improved through the use of a larger telescope suggested itself , and for this reason I made many efforts to acquire a 5 Nov. 1907 . 65 Work ...
Page 66
... spectroheliograph work . The next slide shows the instrument , which you will see is a large and expensive machine . The question , then , comes right down to this point : What are the advantages of such a telescope compared with , let ...
... spectroheliograph work . The next slide shows the instrument , which you will see is a large and expensive machine . The question , then , comes right down to this point : What are the advantages of such a telescope compared with , let ...
Page 69
... spectroheliograph - I looked up our photographs of that date , and there was the image recorded by the spectroheliograph precisely as it had been described . So that if I had previously been a little doubtful as to the possibility of ...
... spectroheliograph - I looked up our photographs of that date , and there was the image recorded by the spectroheliograph precisely as it had been described . So that if I had previously been a little doubtful as to the possibility of ...
Page 75
... spectroheliograph used on Mount Wilson , before we built the more permanent one now employed ; and since the fact that we did substitute a permanent instrument for the temporary one might lead to the inference that the former did not ...
... spectroheliograph used on Mount Wilson , before we built the more permanent one now employed ; and since the fact that we did substitute a permanent instrument for the temporary one might lead to the inference that the former did not ...
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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