Fort Worth gazette. [volume] (Fort Worth, Tex.) 1891-1898, 1893-01-01

omar SQUARE or PEGASUS.

within the confines 81 the constellation In
Orion several % the most wonderful objects
~ me whole heavens are 60 De- scon The
three stars thnt form The wci-tnowu belt
Of orion lie nt the center Of this group;
above The belt the brilliant star nctelmc1c
shines below " d another FIRST magnitude
star known ns Rgel. Then Go The right She
star in the constellation Of the Bull. which
D. known bf the name OF Aldcbaran. while
TO the left the belt points downward 90 the
stellar point m the whole sky. and Il one
of the stars characterized By an extremely
white lustre.
The young astronomer. however. Will
speedily find that many Ohioc which he
would IKE to see Tie beyond the reach uf
his opera glass; he Will often Ind " tan
tallaing 10 obtain mere gllmpecs ~ interest
iug and striking objects, which the powers
Of the little Instrument we have named are
insufficient To- disclose fully ! shall there
fore suppose that the beginner ~ 10 FORUM
cope Of somewhat greater power. For the
purpose , am nlOut 10 describe, what rs
known as a threcinch object giass would
be ample but 81 course need hardly re-
mark that The larger ana The hottcr initru-
mcnt nc employs the more Interesting VIII
be the telescope spectadcs which Il re-
Will perhaps be- tp observe what aHtron0.
mera call q double star uyrc lac Will hnd
irush revclauonl awaiting hlui. There ntc
hundreds. indeed ! may say Thousands, %
double stars in the armament Many OF
these are however objects of some doll
cncy. aud u VIII only be a comparatively
small number that can be scruiinlLcd With
complete Satisfaction ln an instrument of
the dimensions that We hnve supposed. Lot
mo mention two or three Of the objects
OF this class 90 which the attention of the
There are three stars which form the tail
Of the Grcu Rear. The middle Of the three
" known 10 nstron9mcrs by The name OF
Ni2pr There VIII be- no uncertainty az.
fcnding 90 Identification n the Young nH.
trouumcr viii note that close beside ~ lies
q very much smaller star which - called
Alcor. IL $500 formerly to he regarded az
n proof VI r1od vision 10 hc enabled 90 see
Aicor, 10 would seem however, that iu these
latter days the star may have become
brighter. nt all events II now presents up
difficulty 10 any ordinary vision. Lot the
student then direct his telescope 40 Mizar
and its attendant Alcor The two stars
named WILL Of course, seem widely scpar-
atcd by the mngnifyng power Of the mstu
mont hut u was not on this account that
l suggested the observation. There n a re-
mprkablc REGULARITY about MiHnr itself
be-. could possibly discover unica8 II were
fortified by n telescope That object which
star 10 decomposnd by the telescope into two
diHtuCt stars. They are 80 close together
as 90 render 10 practically certain that they
form part az one nyatem ana that Ia thls
ease We are not looking az two stars which
by moco accidental coincidence Hnppon 20
lie along the same line OF ught. They are
not equal Ia luNtfe, nut eluhcr or mem alone
wouli d. quito bright enough 90 be seen
consplcuously by The unaided eye, The
two stars are 30 close that the unnssistod
vision cannot distinguish their commingled
rnys In fact N they were ten times as
far apart aa ~ actually the cnsc n would
not be possible 20 see thcm separately unless
with optical aid. In may respects this u
the most remarkable double star which the
ally Offers TO our notice. In the hrst place,
the star ltgcn ~ very easily recognized
from fno striking situation which it occupies
iu such an important constellation as the
Great Bear aud in the second place, the
star q lurlnslcally 70 bright that both its
comnunpnts are easily discCrned while
their distance Is sufficiently great 10 enable
them 10 De seen separately without em-
pluylng any considerable mngnifylng power.
Ia Is Ou Those accounts that the beginner
H. especially advised to commence hia tele-
scOpio researches with this object When
he has gained a little experience countless
nniilliers 81 Other double stare VIII invite
his attention. ! shall Ia this paper only
mention one more of these objects. II Is