 | Royal Society (Great Britain) - Electronic journals - 1869 - 674 pages
...the theory of a downrush about the same time as my observations were made in 1865, at once suggested as one advantage of this explanation that all the gradations of darkness, from the faculoc to the central umbra, are thus supposed to be due to the same cause, namely, the presence to... | |
 | James Samuelson, Henry Lawson, William Sweetland Dallas - Science - 1866 - 584 pages
...is that all the gradations of darkness, from thefacula; to the, central uml/ra, are thus sup]>osed to be due to the same cause — namely, the presence, to a greater or less extent, of a comparatively cold absorbing atmosphere "In conclusion, we would venture to suggest that if the photosphere... | |
 | Astronomy - 1866 - 352 pages
...render it probable that the various degrees of luminosity observed on the Sun's disk are all due to one cause, namely, the presence to a greater or less extent of a comparatively cold, absorbing atmosphere. The second series, which is based on measurements of the... | |
 | Amédée Guillemin - Astronomy - 1867 - 588 pages
...with other facts. In this paper all differences of luminosity on the surface of the Sun are referred to the same cause, namely, the presence to a greater or less extent of a comparatively cold absorbing atmosphere. — B SJ had travelled a considerable distance when the observations... | |
 | Royal Society (Great Britain) - Electronic journals - 1869 - 658 pages
...the theory of a downrush about the same time as my observations were made ill 1865, at once suggested as one advantage of this explanation that all the...think is now spectroscopically established ; we have, iu fact, two causes for the darkening of a spot : — I. The general absorption of the chromosphere,... | |
 | Royal Institution of Great Britain - Science - 1869 - 636 pages
...theory of a dowurush before my observations of an actual downrush were made in 1865, at once suggested as one advantage of this explanation that all the gradations of darkness, from the faculte to the central umbra, may be supposed to be due to the same cause, namely, the presence to... | |
 | 1869 - 342 pages
...the theory of a downrush about the same time as my observations were made in 1865, at once suggested, as one advantage of this explanation, that all the gradations of darkness, from the faculse to the central umbra, are thus supposed to be due to the same cause — namely, the presence... | |
 | Royal Institution of Great Britain - Science - 1869 - 646 pages
...darkness, from the faculoo to tho central umbra, may be supposed to be due to the same cause, namely, tho presence to a greater or less extent of a relatively cooler absorbing atmosphere ; thus suggesting as one cause of tho darkening of a spot — 1. The general absorption of the atmosphere,... | |
 | Astronomy - 1870 - 298 pages
...tho theory of a downrush about the same time as my observations were made in 1865, at once suggested, as one advantage of this explanation, that all the...be due to the same cause — namely, the presence of a greater or less extent of a relative cooler absorbing atmosphere. This, I think, is spectroscopically... | |
 | William Chambers, Robert Chambers - Anthologies - 1870 - 526 pages
...luminosity ; so that probably all the gradations of luminosity on the sun's surface may be due to one and the same cause — namely, the presence, to a greater or less extent, of a comparatively cold, absorbing atmosphere. The evidence in favour of this hypothesis was shortly afterwards... | |
| |
... to the central umbra, are thus supposed to be due to the same cause, namely, the presence to a greater or less extent of a relatively cooler absorbing atmosphere. 
