The scientific papers of Sir William Huggins (1909)
Huggins, William, Sir, 1824-1910, Huggins, Lady, d. 1915 · London, W. Wesley and son · leaf 296
rument shows that they are notdue alone to the stellar nucleus, but are produced by the light of the brighterportions of the coma. I took some pains to learn the precise character of these luminous bands.When the slit was wide they resembled the expanded lines seen in some gases :for example, the… … Fig- 32- one in the yellow and the one in the blue, appeared to fade out withoutbecoming more defined. I was unable to resolve these bands into lines. Inthis respect they are very different from the bright lines of the nebulae, whichbecome narrow as the slit is made narrow. The middle band, which…
Astronomy
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