 The spectrum of the dark zone beneath the Southern Polar spot appeared as a dusky band when compared with the spectra of the adjoining brighter parts of the planet. This fainter spectrum appeared to possess a uniform depth of shade throughout its length....  Monthly Notices of the Royal Astronomical Society - Page 180by Royal Astronomical Society - 1867Full view - About this book
 | Royal Astronomical Society - 1867 - 248 pages
...The spectrum of the dark zone beneath the Southern Polar spot appeared as a dusky band when compared with the spectra of the adjoining brighter parts of...in colour. I do not now regard the ruddy colour of Mars to be due to an elective absorption, that is an absorption of certain rays only so as to produce... | |
 | 1867 - 354 pages
...The spectrum of the dark zone beneath the Southern Polar spot appeared as a dusky band when compare^ with the spectra of the adjoining brighter parts of...in colour. I do not now regard the ruddy colour of Mars to be due to an elective absorption, that is an absorption of certain rays only so as to produce... | |
 | sir Henry Enfield Roscoe - 1869 - 396 pages
...The spectrum of the dark zone beneath the southern polar spot appeared as a dusky band when compared with the spectra of the adjoining brighter parts of...in colour. I do not now regard the ruddy colour of Mars to be due to an elective absorption, that is, an absorption of certain rays only so as to produce... | |
 | Henry Enfield Roscoe - 1870 - 514 pages
...The spectrum of the dark zone beneath the southern polar spot appeared as a dusky band when compared with the spectra of the adjoining brighter parts of...in colour. I do not now regard the ruddy colour of Mars to be due to an elective absorption ; that is, an absorption of certain rays only so as to produce... | |
 | Henry E. Roscoe - 1869 - 372 pages
...The spectrum of the dark zone beneath the southern polar spot appeared as a dusky band when compared with the spectra of the adjoining brighter parts of...in colour. I do not now regard the ruddy colour of Mars to be due to an elective absorption, that is, an absorption of certain rays only so as to produce... | |
 | Henry Enfield Roscoe - 1873 - 542 pages
...The spectrum of the dark zone beneath the southern polar spot appeared as a dusky band when compared with the spectra of the adjoining brighter parts of...in colour. I do not now regard the ruddy colour of Mars to be due to an elective absorption; that is, an absorption of certain rays only so as to produce... | |
 | sir Henry Enfield Roscoe - 1873 - 550 pages
...The spectrum of the dark zone beneath the southern polar spot appeared as a dusky band when compared with the spectra of the adjoining brighter parts of...that the material which forms the darker parts of the planet-s surface absorbs all the rays of the spectrum equally. These portions should be therefore neutral,... | |
 | 1867 - 1174 pages
...The spectrum of the dark zone beneath the Southern Polar spot appeared as a dusky band when compared with the spectra of the adjoining brighter parts of...the rays of the spectrum equally. These portions, therefore, should be neutral, or nearly so, in colour. I do not now regard the ruddy colour of Mars... | |
 | 1867 - 494 pages
...The spectrum of the dark zone beneath the Southern Polar spot, appeared as a dusky band when compared with -the spectra of the adjoining brighter parts...planet. This fainter spectrum appeared to possess an uniform depth of shade throughout its length. This observation would indicate that the material... | |
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