Star-land : being talks with young people about the wonders of the heavens (1891)
Ball, Robert S. (Robert Stawell), Sir, 1840-1913 · London ; Paris : Cassell & Co. · leaf 356
ose ? Of all the nebulae, now numbering some thousands, thereis but a single one which can be seen without a telescope.It is in the constellation of Andromeda, and on a clear darknight can just be seen with the unaided eye as a faint dullspot. It has happened, before now, that persons noticingthis… … Fig. 88.—Taken from Mr. Robertss Photograph of the GreatNebula in Andromeda. dull spot, rather elongated. You can see more of its struc-ture when you view it in larger instruments, but its naturewas never made clear until some beautiful photographs were 342 Star-Land. taken by Mr. Roberts (Fig.…
Astronomy
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