Other suns than ours. A series of essays on suns - old, young, and dead, with other science gleanings, two essays on whist and correspondence with Sir John Herschel (1887)
Proctor, Richard A. (Richard Anthony), 1837-1888 · London, New York, Longmans, Green · leaf 437
ever, unless there is extinction. We know there are parts of the Milky Way where there is irresolvable nebulosity: and the question at once sug- gests itself, Have we any evidence whether this is to be looked upon as a proof of indefinitely vast extension of the galaxy in direction of the… … Fig. D.—a Star-Group, power is followed by the resolution of more and more of the spot, but that the highest powers fail to resolve some parts. Also the spot contains stars of the seventh magni- tude. If, then, we are to look on irresolvability with given powers as a test of distance, the true…
Astronomy · Whist
Internet Archive · Cornell University Library · Public domain (published before 1931). Free to use for anything.
