A beginner's star-book; an easy guide to the stars and to the astronomical uses of the opera-glass, the field-glass and the telescope . h 75 x is better. Powers between 60and no will also be needed for some of the following:the Eta (t]) [82] in Cassiopeia, one of the finest of binarysystems; the Mu (h.) [153] of Cygnus, just to the right,or east, of Lacerta; and 61 [150], Omicron (o) [148],and 17 [152], also in Cygnus; as well as Eta (t]) [308]in Perseus; and Omicron (o) [163], Iota (i) [164], andGamma (7) (165] in Dr.\co. In (jEMINI, if the stars arenot too low in the sky, try Kappa (k) [189]
A beginner's star-book; an easy guide to the stars and to the astronomical uses of the opera-glass, the field-glass and the telescope . h 75 x is better. Powers between 60and no will also be needed for some of the following:the Eta (t]) [82] in Cassiopeia, one of the finest of binarysystems; the Mu (h.) [153] of Cygnus, just to the right,or east, of Lacerta; and 61 [150], Omicron (o) [148],and 17 [152], also in Cygnus; as well as Eta (t]) [308]in Perseus; and Omicron (o) [163], Iota (i) [164], andGamma (7) (165] in Dr.\co. In (jEMINI, if the stars arenot too low in the sky, try Kappa (k) [189], Epsilon[191], and Lambda (X) [192]. The last is the unmarkedstar which forms a small triangle with Delta (8) andZeta (?), both of which we have already mentioned. Ona line extending the handle of the Little Dipper note thesmall star marked IQ H [49]. Ir trying to divide Polaris, the Pole-Star [406], usean eye-piece affording a power of from 75 to 100 on athree-inch instrument. At the present hour, the begin-ner may look for the small blue companion upward andtoward the left from the brighter component. 52 a Beginners Star*Booft. NIGHT-CHART TO THE SKY AS THE OBSERVER FACES 1, 8 JUNE 15, 9 , JUNE I, 10 , MAY 15, 11 , MAY 1, 12 FOR KEY-MAP TO THIS CHART SEE OPPOSITE PAGE. FOR THE SKY AS THE OBSERVER F.\CES NORTH, SEE PP. 50, 5I. For the sky at other Dates and Hours see Time Schedule, p. 35. The Constellations. For the Telescopic Objects See the Page Opposite. The numbers in brackets [ ] refer to corresponding numbered notes in Observers Catalogue, p. Il6. As we face toward the south, the stars of Scorpio, orScoRPius [350], lie before us—a little to the left. Scorpiorises at about the time Orion sets, and dominates thesky of midsummer almost as strikingly as Orion [290]dominates the sky of winter. We may recognize the constellation, even through thehaze which so often lies near the horizon, by the fan-likefigure of six bright stars. This is fo
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Keywords: ., bookcentury1900, bookdecade19, booksubjectastronomy, bookyear1912
