Elementary astronomy; a beginner's text-book (1899)
Holden, Edward Singleton, 1846-1914 · New York, H. Holt and company · leaf 448
ill W 03 03 _ 03-u> «3J3 £ o >>«<y —*3+j i n 03 .Si. «5 &c.ff Hii 03 g-^CQ> O o? U 03 . S otf-3 J? 03 t_ S•5 13 03 ^ Sg-2 8 5 03^a >■£ 43 43 03 O <» CO O «8 CO I s S3 03 03 HINTS ON OBSERVING. 423 To see a nebula with advantage it is sometimes advisable to set tbetelescope… … Fig. 212.—Map of the Stars (to Fourth Magnitude Inclu-sive) near the North Celestial Pole.The names of these stars can be found in figures 214 to 219 following. that no artificial lights should be near the observers place. The wordbright in the descriptions is a relative term. A bright nebula…
Astronomy
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