, 1873-09-22

I
latter which is popularity called the "Dirper is oro
tho reiara and ,ha io ~ eon T. rhs pesua,'
tions ~ IT, ,,n,.a..,, "a.s " ~ ns leAsl'o poa'.
IN M VI sars IN seo.po arc
III ne accompanying diagran, tho top Of which should
be turned littlo towards tho right hand to corro-
epond with the lav Of tho eroun a. ,aon
to tho wast NJ uo.h Tho .,,rs s'' T., ~, " as,t .sen
~ '"o "1s. " 'oasn' lhe Aafa Ill tho north
aTn portion OF tho hg'ro aro 80 arranged al
eirred To ,couo to 0nh,uc,a, c,o.o =.
I'm a,,.,t,,, 49, ~ " e'oou toeeiaoahso 10
md esws o hc sreatasa sS5s ws1
painted Oh tho globes. The most norther,y, of tho
second magnitude inc. ~ IL callc1 0rao,ss 1,rn,,
theao long linz runs through An.ares tot tho frat
magnitude locatol in tho heart Of tho Scorpion, down
ward crdi,o ir n,t, - s,.ss t., 49, ~, ~
| ,.s ss :. p!. " otata' ~ .no taa4 tae noas
nn,ara1s " a,n ~n'eh sso' ~, called Lo'sh Tho
| gram those by which they wero destg-
mated by F1arnstead, tho first Astronomer
Hosa OF En9and Tho most souherly Of tho group
wcro not numbered ty him. being too far south to be
visible from Greenwich. Hence thev arc known only
| bv tha f,oo,, Io.. 49, s' ~ n'o''' sru'J w.
49,. a.asa, -. ~ sAa, ase paeen near mem. Iho
| those stars aze double
The planet Mara il tha evening about nine degrees
ant5 IT, S msyng
~ the upper left corner Of the dagran and known u
Theta IN ophiuc,la Mars is not now alch interest
tho carth which s nearly threo times bis least
vs worthy Of notice, and the ehicf % pont we Wiz
~ IA. ssy
in this direction b. tho old Of our diagram ''-~'~
we eoplars tic planet with to star Antarea using
IN s no aa4y erones n a
parent magnitude. Antaroa Is QUO Of the fow red
stnra that deck our ornament, and Its shade
tink nf 11h
which 90 much resembles tho hue Of blood 70 avo
g. 9n,sna @ y, Of year, ege s naming q
struck the anceut observers long before the framing
q Tue @ r.olemaic sysom Of tho universe Is proven ~
HEecka Antt, for, aud Ar-rs Mars, tho roots Of
tue word, signifyng that the star was regarded by
probably no oilor reason than ha. Soh sere then
Of I,;. thc same =. =. ,. hMe aa they aro to-day.
very interesting chapter on star etynoIoqy: showing
the growth Of many complex systems OF thought or
belief from to% nInre ideas suggested by tho
difficult to trace buck Tho whole Of classic myth
ology to az early perception Of few astronomical fcs
Important truth which fluids npt and forcbie ustra~
tfon III tho phenomenon uudsr rcvtew. vory few
81 Raa sss ai sy its sss @
ysraal'y accepted as tho ou!y one that will explain tho
5sa @ 81, Sf ne universe rs ws understand them
bo BY ss discoveries Of tho past few yoara in regard
to the constitution Of mntter and tho correlation Of
raction Of graytation among tho particles Of mass
of mater produces compression, which evolves heat
dlstion, mud rapidly tho body smaller hay
my greater surface in proportion to its
that this loss Of heat perlnita further
place q portion Of tut radiaed oil Into space c
varying with tho Temperature. We ind that
very highly heated boles give out al tho coors Of Tie
who that when tho temperature IL decreased below
certain point tile violet ray missing and that the iu
ccsston process Of cooling irocoes Til the red
ta the ony Of the visible rays that ia enlit.ed Az
the cooling process goes the red dies out, and tho
body becomes invisible unless Oh 1t rnay be seen by
dark mass to our eycs. Tho sun and Xntares still
much smaor body tlnn either hss long since cooled
down to tie stage whore he IL vteblo to only be-
Ne can scarcely resiat tho concaaon that, during
the past years. md possibly for aeyeral ccuurtea
epssa sn IN ha that me h. Sen aceFne
comparison Is as cosc now ~ then, and 1t IL very
Likely that both bodies should change color in the same
oy Of the planet il towards lighter shade In the f-
ture as "o hays the boa Of to think that tho
towards deeper red. This, because Tho star In
tta continuous cooling from q white heat must have
sa % a 1ns Tho s e. 1s
following the same Law, must In to future cool down
through tho temperatlse which gves out only the
hest, WHOM Will become Invisible to Conversely as
alars eoos down towards tho present condition OF tho
ably 1ose hit distinctive color, aud reflect 10 us the
shsat sha rea only partially nsed from the yellow towards
From th!s ,ro mny gain como faint lido. OF tho I'M.
1nensy Of the rerod q time, verglng almost on tic
Of was S n a1ss 9s gsG s
Hse = hass HS''ps psred of
Change haa occurred tho movable index of The stars