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 . e [395]. Both groups arenow too high for convenient study; but see p. 55. In now looking to the right to the great square ofPegasus, the Winged Horse [301], it will help us toassume that the upper corner of the map comes intoward us a little and that all the lines slant somewhatdownward as indicated by the arrow in the corner;see p. 4. Far to the south-west, Aquarius, theWater-Bearer [15], is setting, the mouth of thewater-jar being marked by the little Y-shap
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 . e [395]. Both groups arenow too high for convenient study; but see p. 55. In now looking to the right to the great square ofPegasus, the Winged Horse [301], it will help us toassume that the upper corner of the map comes intoward us a little and that all the lines slant somewhatdownward as indicated by the arrow in the corner;see p. 4. Far to the south-west, Aquarius, theWater-Bearer [15], is setting, the mouth of thewater-jar being marked by the little Y-shaped figure atGamma (7). Still further to the southward lies PiscisAusTRiNus, the Southern Fish [330], not to be confusedwith Pisces, the Fishes, to which we have just mouth of the Southern Fish is marked by FoM alhaut[331], a star of the first magnitude. It is not so brightas Sirius or Rigel but a welcome object in this vastregion of less brilliant sky. It sets, in the latitude ofNew York, just as Sirius rises. In the latitude ofLondon it sets a little earlier. jfor ®pera*(BIass, jrielb=»(5la09, an& telescope 41. OC/UJfe-^ or Nef3u/a- its the observer faces Soufhtvard,Ihe jtars af his left are rijiha;? those afhij riijht ans setftng. KEY-MAP TO THE SKY AS THE OBSERVER FACES 1, 8 DEC. IS, 9 , DEC. 1, 10 , NOV. IS, 11 , NOV. 1, 12 FOR NIGHT-CHART TO THIS MAP SEE OPPOSITE PAGE. FOR THE SKY AS THE OBSERVER FACES NORTH, SEE PP. 38, 39. For the sky at other Dates and Hours see Time Schedule, p. 35. The Telescopic Objects. For the Constellations See the Page Opposite. Numbers in brackets [ ] refer to corresponding numbered notes in Observers Catalogue, p. Ii6. I. With opera-glass or field-glass examine thetwo star-clusters in Taurus, the Pleiades [382] andthe Hyades [383]. The glass will greatly increase thecharm and the interest of both groups; see p. Aldebaran note the pretty doubles Theta (6)and Sigma (<r) [386, 389], and b
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Keywords: ., bookcentury1900, bookdecade19, booksubjectastronomy, bookyear1912
