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Show A.lnmi.u.lml I'rngrr.a. "Wo hato bnt eutcreil tho uitllraloof our acqiialntauco with tlio unlvirse," sa) s Cunilllo I laminarlon. "May tin re not exist nmung tho phuctnry racia p) clila boilils w hereof w o nro as ) et l noniiit" U ell, wo w 111 gl.o it np, that last pirt of tho problem Hut tho I ile,t nclilevo-ments nclilevo-ments In astronomy give rcjso-i tetdiope that many things now sccinlnl) im;os slbleinay bocomo as easy aAiuakii" an egg stand on cml w aa o i'oluiuhlll.nhen wo ouco know how It Is done. Tim best that has been accomplished by nitrono mrrslittuuuyu)carts the fiiulln; out how to get tlio li)alca) coustltutliin of aatar Photography has como to the nl.l of oslronouiy In Accomplishing marvels. mar-vels. A star is viowed through n lelo-scoa. lelo-scoa. Its light Is ma to to fall upon n prism. This prism aiur!itcs tlio ru)s. lliey fall as a colored rlblion ui-uti n sere-cu bc)oudnnd thu ribbon Is (holographed (holo-graphed Optical chemistry discovered somo )cars ago that eieh substatico known to man inukes, when it bnrns and its blazo Is irnssed through n prlim, a ribbon of light jicciillar lo Itself, w Melt noetra rica. If ut times other ra) s aro mingled with tlioso of this ribbon c.r siK-ctrum it shows Hint other substance hao been lulled with tlio lint one. lly comparing compar-ing tho ribbons or sis-ctra formed on tho screen bythodilfcrculBubstanccskiiouu on our earth with thoicclruui formctl by tho light of n glicii star Astronomers can dctormino tho constituent elements of that star. bomo times ago it was fount nt tlio Harvard observatory that tho rn)s of tho spectni wero double in ca.ocf ccr tain suits. This led to tho wonderful ellsco cry that ccrtiin stars lu the fir off unite no hue o other atars rceolvlug about them withn ripldity that Is Almost Al-most inioncohablo to us. bomctlmes tho twin star Is su far away that Its light cannot losccu by us through any telescoiKi ) el Inuntcil, but wo know tbo slur la thero from its ieclruiu. Astronomers As-tronomers hao 6ca boon Ablo tocal culato how long It akti theso stars to revoHetihoutouo affbtlur, Hometmcs natarviiiblolhrougli tho tclcicoi-odls-niars altogether nt ictular Inter all mil apars serenely In tho lic-nem ngnliu lu this ciuo tho star goes Into celipso behind a dirk star. Algol, tho licry orb in Mcxliua, has been found tn bo h douhlo star of immenso slee, tho t InS tn tug composed of ouowhito sun and ouo totally il.uk one. Iho two fly about each other In 2 i1j) l, SO hours, ii minutes, M secoudi. Another great double star li (lib one called Meiikallnuu, near tho Wlillo Ca-jiclla. Ca-jiclla. Theso tvrlm waltx around each other at tho dizzy rato of tJ.GSu uidea A minute. This douhlo sun is bC',00u times as heavy as onr earth. It travels well fornlirgo bod). In innuyciscs both stars aro light, as nltli M Izir In tlio ion etelhtion of tlio Dipper. riicorotoUo inoro tlonl),irformlng their journey In 101 da) a, Tho iil.no discover) tit regard to the sictra of iloul.lo stars may lu ioiml.1. erewl ia.rhns tho most iuqiorlaiit ouo midoln u.trouomylii jears. Another, hove o er, Is ulinost ciiual to It, 1 hot li, that by tlio samo Inn lioous to aitrono incrs, spoctral uiulle und uettoplio-togruph), uettoplio-togruph), lt Is io.kiblo to ntiirtaln whctlurastar la appioachlng earth or receding from It These two nihleto. laenti. together with tlio fact that wo I nro cpiuliintly olitiiliilng moio and mora Iuwerful tolesco-Ls, constitute Iho u.oit Inipoi tant retul'.s of astrvnomical work in Iho past few )wata- |
