4
Star, Planet, Meteor
By J. HUGH PRUETT
Astronomer? Extension Division
Oregon Hither Education System
3 "Are the stars in" the Great
Dipper just stars or planets?
Please distinguish between
planets and stars. All planets
are stars, are they not, but not
all plums are prunes. Why,
through "the ages, has not one
of the seven stars in the Great
Dipper fallen or burned out?
We see stars falling and wonder
if one in the Dipper will ever
fall." (H.H.S. Portland)
s Aside from Jhe sun, moon,
and an occasional comet, the
c other celestial objects look alike
to the naked eye excepting for
brightness. So we are accus
tomed to call them "stars. The
flecks of light that- at times
dash across the sky and dis
appear in a second or so look
just like stars so are commonly
called "falling stars."
Three Distinct Classes
These objects which are called
stars really belong in three dis
tinct classes. Some are relatively
close to us; others at great dis
tances; still others are incon
ceivably remote.
The nearest are the so-called
"falling stars." They are not
stars at all. They are meteors.
They are debris which comes
from spaces outside the region
of the earth and become lumi
nous only as they dash through
our upper atmosphere some
times at over 40 miles per sec
ond and bee om e heated by
friction with our air. They are
small particles of matter and
while visible are descending
from about 80 miles above the
earth's surface to 40 or 50 miles
where they are entirely burned.
Big ones sometimes reach the
surface before being consumed.
Other Worlds
Planets are other worlds of
our own solar system. Only five
are visible without optical aid.
They encircle the sun as does
our earth. Some are nearer the
run than we are but most of
them are farther away. They are
not luminous due to being in
tensely hot, but only because
the central sun shines on them
and lights them. They are stars
only in appearance. The most
distant known is Pluto, nearly
four billion miles' from the sun.
The real stars are extremely
distant suns, the nearest being
about 7,000 times farther from
our sun than is Pluto. They
shine because they are extreme
ly hot. Our sun is the closest
star to us. Very delicate instru
ments are needed to detect mo
tions of the distant stars among
themselves, even , as seen in a
human lifetime. They never
shoot across the sky as do the
nearby, meteors. Terrific veloc
ity would be needed for us to
detect it readily.
"Shooting stars" are not real
stars on a rampage. They are
only phenomena of a relatively
nearby upper atmosphere. Don't
worry that some night a star or
two will tumble out of the Great
Dipper. All of them are real
stars, not planets nor meteors.
Construction in Washington of
the National Shrine of the Im
maculate Conception, which will
be the second largest church in
the United States, will require
250,000 cubic feet of stone, 170,
000 bags of cement and 25,000,
000 bricks.
Sunday, February 13. 1953
MTOTOwn fOBEtsain matt. -mr-ajTrrv vrw
Motorcycle
Mishap Injures Navy Man
Jackie W. Allen, 21, of 801
North Central ave., was report
ed in "satisfactory" condition
yesterday afternoon, following
a motorcycle accident on Consol
idated Freightways property, ac
cording to hospital attendants
and city police.
Allen, who is in the U.S. Navy
and returned home on leave Fri
day, was apparently practicing
riding a motorcycle when he
struck a low concrete retaining
wall in the truck yard, police
said. .
Officers said they believed Al
len suffered a fractured should
er and possible head injury, al
though complete information,
wasn't available until x-rays
could be analyzed.
The youth was taken to Com
munity hospital by Medf ord Am
bulance service.
Almost 90 per cent of the pre
scriptions written by doctors to
day could not have been filled
as recently as '20 years ago be
cause the drugs they called for
did not exist then.
Z4
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