The sun. [volume] (New York [N.Y.]) 1833-1916, 1901-11-10

Inc paths made by the snootng starr
though appearing TO be very much at ran
dom. will. II carefully placed IN a char
of the sky, be found to meet ut a certain
point-the so-caled radiant. This hn
a movement Of It's own. the measurement
Of which ia an interesting subject OF re-
search.
The paths OF the shooting stars-a me
teor. as has been said, being a dark body
in space: that Is. a shooting star only when
Il collides with the eHrth's atmosphere
aud becomes luminous-will also be found
to grow shorter and shorter as one APP
proaches the radiant. due to the effect
OF perspective. A railroad track. for
example. will appear shorter or longer
| in itself. as one looks at II In perspective
or from one eide.
The paths Of the meteors are parallel.
and as we look at them those near the
radiant will be head-on, and however long
In reality will appear as points only To us.
We see the paths more and moro side
wavs moving away from the radiant, and
meteors very much to the side of our axis
Of vision will sweep through great arcs
of the sky.
The constellation Leonis rises shortly
before midnight on Nov. u, but is not well
in view till A. NJ. II can be found readily
by using the pointers in the Dipper in a
reverse direction from the customary
use In finding the North Star.
Leonis will be identified about as far
OF as the North Star Is the other way, and
as a very good outline of a sickle, with
the bright star Regulus at the outer.end
of the handle.
better way il TO use the we stars FORM
ing the side Of the dipper nearest the handle
for pointers. These point, again in the
direction opposite to the North Star, d.
rectly at the Sickle. The radiant Of the
Leonids IL within the curve OF the blade
| OF the Sickle, near the centre. The whole OF
the constellation, however. does not come
into good view till about . A. M.
In observing meteors, the important
| things looked for by are the
number and brightness. Color, ,ength OF
| path and other things are useful; but with
| the number and brightness something
| of importance can he done. and. what is
| of more general interest one need not be
| n professional astronomer to do ones part
in that something.
In a circular issued by the Harvard
Observatory and designed to secure world
| wide cooperation in the work Of observ-
! ing the expected Leonids, II has been rec
commended that the observer note how
long il took for ten shooting stars to appear
On the record made should appear the
place of observation; the observers Post
| Office address; the astro nomical date,
which IL obtained by using the date
of the previous evening for the morn
ing observations: also, since the as
I Economical day begins at noon, the time
used, whether Greenwich, standard or
local; the beginning and ending OF OBJ
servations, which were 20 be made. usu-
| ally, with intervals OF rest between. when
other special observations might he made
and finally, any Interruptions by clouds
or from other causes.
II the shooting stars have long paths
or marked characters, a less number than
| ten might lie chosen. II they are numer-
ous, a larger number could Ire counted
The observations need only care, system
and perseverance, TO be OF real value. 40
| that the resulting record can Ire sent 70
Harvard. II one chooses 10 accept the for
NAL invitation Of the observatory TO dc
20, with the assurance that II can there
| ~ NDtItldlfd ~ wv 49,
The estimate Of magnitude should be
made bet the periods ot counting
The counting, IL IL recommended. should
engage the whole attention 81 the oh.
server while IL Is in progress. Besides
this patter Of numbers and brightness
| observations Of color. o. the direction and
| character Of path. whether straight. curved
or having az angle. Of shooting stars con
spicuous for size. explosion or for leaving
a trail, aud 30 on. are some Of the Interest
ing things tha may be- noted by the curious
observer content with the naked eye.
With a good camera a higher grade Of
work may lie done. and the photographs
will AFFORD data 60 the for de-
t.rminng the skAct place Of ths radiant
! proyided, 81 oOur-e. any streaks on then
aptear 20 l@ eferrablr 10 tho pressno.
~ shooting starr which u by no means q
sure expectation
shooting starr are too brief In duration
~ make niucii ~ aB impression on ths
plate but II 10 quite pu--lble - get than
and one good trsn. nAy L. ouhsbd"ned
A. leius v-il worth while by tho amateur
Ia. rafa avis - Photographic observe
iinu ~ould h. IA. -~scuriIs ~ q sIsst run
| ~ a shooting star. but tho muzt probably
~
is left 60 ui-.sf, ator. like thn-r a. ltai
ward and ial- which Afr .quiplsd vii
stsclal apIafatus Harvard. indeed. b
| tho anl, observatory that hAs y-l suc
ossicd la sstiius . sl--Fnm ~ q SHOOTING
eta. Lr to saHU.s- sss secured onll D.,
ACCIDENT
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