. Radiant suns : a sequel to Sun, moon and stars. Type I. WhIIE bTAR-^.Siiiiis. Veg. QZ< <in o< Type II. ^ rti (orange). Varieties of Stms 203 The stars of the Second Class are inferior inlustre, as seen from earth, to the very brightest ofthe White Stars ; yet they too are powerful andbrilliant. Hydrogen exists in no mean quantity ontheir surfaces, though not to the prodigious extentwhich distinguishes the First-Class Stars, and leavesits mark upon the White Star Spectrum. To thisclass, as its name indicates, our Sun belongs; andArcturus, Capella, A


. Radiant suns : a sequel to Sun, moon and stars. Type I. WhIIE bTAR-^.Siiiiis. Veg. QZ< <in o< Type II. ^ rti (orange). Varieties of Stms 203 The stars of the Second Class are inferior inlustre, as seen from earth, to the very brightest ofthe White Stars ; yet they too are powerful andbrilliant. Hydrogen exists in no mean quantity ontheir surfaces, though not to the prodigious extentwhich distinguishes the First-Class Stars, and leavesits mark upon the White Star Spectrum. To thisclass, as its name indicates, our Sun belongs; andArcturus, Capella, Aldebaran, are among its numer-ous other members. They give, like the Sun, aspectrum of banded colours, with dark lines ruledon it from end to end, no one material especiallypredominating. The best typical specimen of SolarStars is Capella; and that fair star seems to bein many respects a very close copy of our SunCapella may, perhaps, be looked upon as the sunstwin-brother in the Stellar System ; much as Venusmay be looked upon as the Earths twin-sister inthe Solar System. The Po


Size: 973px × 2569px
Photo credit: © The Reading Room / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: ., bookcentury1800, booksubjectastronomy, booksubjectstars, bookyear