 Is the umhra of a spot nearer the sun's centre than the penumbra, or, in other words, is it at a lower level ? (2) Is the photosphere of our luminary to be viewed as composed of heavy solid, or liquid matter, or is it of the nature...  Proceedings of the Royal Society of London - Page 32by Royal Society (Great Britain) - 1865Full view - About this book
 | Literary and Historical Society of Quebec - 1864 - 622 pages
...are — 1. Is the umbra of a spot nearer the sun's centre than its penumbra? or, in other words, is at a lower level? 2. Is the photosphere of our luminary to be viewed as composed of heavy solid, or heavy liquid matter? or is it nature of a cloud? The telescope with which I made my observations has... | |
 | 1865 - 1144 pages
...favourable to this hypothesis. The authors next endeavoured to answer the following question : — Is the photosphere of our luminary to be viewed as...matter, or is it of the nature either of a gas or cloud? It was observed that the great relative brightness of faculae near the limb leads to the belief that... | |
 | James Samuelson, William Crookes - 1865 - 874 pages
...Benjamin Loewy, Esq. The authors have attempted to answer the following questions : — 1. Is the umbra of a spot nearer the sun's centre than the penumbra...lower level ? 2. Is the photosphere of our luminary to bo viewed as composed of heavy, solid, or liquid matter, or is it of the nature of either gas or cloud... | |
 | James Samuelson, Henry Lawson, William Sweetland Dallas - 1866 - 594 pages
...nearer the centre than its penumbra ? or, in other words, is it at a lower level ? II. Is the atmosphere of our luminary to be viewed as composed of heavy solid or heavy liquid matter, or is it rather of the nature of a cloud ? III. Is a spot, including both umbra... | |
 | Sir Norman Lockyer - 1874 - 720 pages
...since 1858. To Nature as exhibited in these drawings they have put the questions : — (1) Is the umbra of a spot nearer the sun's centre than the penumbra...heavy solid or liquid matter, or is it of the nature cither of a gas or cloud ? (3) Is a spot (including both umbra and penumbra) a phenomenon which takes... | |
 | Sir Norman Lockyer - 1874 - 734 pages
...just stated by M. Fay e : — " The authors next endeavoured to answer the following questions : — Is the photosphere of our luminary to be viewed as...matter, or is it of the nature either of a gas or cloud ? It was observed that the great relative brightness of faculae near the limb leads to the belief that... | |
 | Sir Norman Lockyer - 1874 - 748 pages
...just stated by M. Faye : — "The authors next endeavoured to answer the following questions : — Is the photosphere of our luminary to be viewed as...heavy solid or liquid matter, or is it of the nature cither of a gas or cloud ? It was observed that the great relative brightness of facula; near the limb... | |
 | 1867 - 900 pages
...42 | 87-5 6 1 2-5 1-83 30 73-2 1 1 26-8 24. Let us now endeavor to answer the second question — " Is the photosphere of our luminary to be viewed as composed of heavy liquid or solid matter, or is it of the nature of a cloud?" One characteristic of the sun's surface... | |
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