OCR Text |
Show Thr.a aura In Una, BjB The North Star has recently attract- B cd much attention from the fact that B In September, 1533, Prof. W, W Camp- BJ bell ot the Lick Observatory, Mount BJ Hamilton, Cal, announced that It la BJ really three stars, which appear at one. BJ Cven the big telescope, with Its glass B a yard across, nt his observatory, could not tell that, a the star It to fnr off, BJ although tho tcleteope can show a BJ great deal of the form and C "jco BJ markings of the mm moon r?s fi- . BJ eta. nnd help ut to m mllll of V iVJ stars not visible to the unald" eye BJ Prof. Campbell attached to thlrftcle- BJ scopo an Instrument called the pec- BJ troscope. which nnnlyzes the light It- BB self, nnd tells what it Is mndo of nnd BJ whether the star from which it corn-is BJ Is in motion or at rest, and whether BH coming towards us or going away Ho H found by careful sturdy that Polaris I H realty three stars, though appearing H to our eyes as only one, and that tho H three are revolving around ono anoth- BJ cr, and that the group it approaching BJ the earth at the rata of about soven BJ mile a second HJ |