The Telegraph-courier. [volume] (Kenosha, Wis.) 1888-1946, 1923-08-23
MOON TO HIDE
sun ON SEPT. 10
Scientists from Yerkes OBJ
servatory to View
Phenomenon.
is A TOTAL ECLIPSE

Williams Bay, visa total eclipse
of the sun, the first visible in the
United States since 1918 and the last
until 1925, is attracting westward to
the Pacific coast, the scientific colony
resident on the hill here near the
Yerkes Astronomical observatory.
Not since August 10, 1451, forty
two years before Columbus discovered
America, has the Wisconsin area ex-
perienced a total eclipse of the sun,
Professor Frost AYERS. Furthermore,
it will not experience another total
eclipse for at least FIVE centuries more.
For more than six months, pre-
parations have been going forward
at the Yerkes observatory. Expen-
sive instr uments have been manu-
featured and closely guarded as they
made the trip across the continent.
Will Use Huge Plate.
The most notable feature of the
Yerkes camp observing the September
eclipse will be the largest photograph
hic plate holder ever known to the
science of photography. The plate
holder will be 26 feet long and will
contain inside it a man operating the
plates which will record the progress
and phases of the suns eclipse.
All of this preparation and scientific
study has replaced the terror and ap-
prehension which in olden times ac-
companied such a phenomena as the
suns eclipse. In place of the fear
of the end of the world, the super
stition Of angry gods, frowning de-
struction upon the earth, has come
the appreciation of the occasion and
careful and inspiring scientific inquiry.
The total eclipse Of the sun in Sep
TENDER is the first since 1918 and will
be the last until 1926 to be visible in
any part of the United States. The
path of total observation will be 105
miles wide, the central line of which
will pass among the islands of the
southern coast of California. The
northern limit of totality will lie one
mile to the northeast of Santa Bar
bara, 20 miles to the southwest of
Los Angeles, 10 miles to the south
west of Long Beach, and IT miles
to the northeast of San Diego. Cali
fornia is the only state in which. the
total eclipse will be visible.
Visible Over All United States.
The eclipse will be visible as a
partial eclipse over the whole of
North America.
One who observed the 1918 total
eclipse in the eastern part of the
United States gave this description
of the visual effect:
"As totality approaches, pale pur-
lie he Law
scape, Within a minute of the total
phase the phenomena begin to sue
coed each other so rapidly that no
single observer can note them all.
By those gazing at the landscape in
the direction of the approaching sha-
dow majestic darkness will be seen
to sweep forward with a swiftness
truly impressive.
"Those looking at the earth, and
away from the eclipsing sun, will see
a succession of fitting bands, alter
nately dark and bright, known as the
shadow bands, which for many decades
remained an unexplained puzzle.
About Is seconds before the total
phase, the moon, with its sharp ir-
regular outline, due to the elevations
and depressions in its surface will
have diminished the solar crescent
to such an extent that the remnant
of it usually begins to be crossed by
black lines.
Moon Mountains Show.
'"Then it rather suddenly presents
the appearance of string of detach-
ed brilliant points, irregular in size
and spacing The appearance is due
to -irradiation which alike exaggerates
the length and thinness of the pro-
jected lunar mountains and the size
of the resulting bright points of the
disappearing solar crescent.
"Totality, the appearance of the
prominences, whether red or white,
along the moons edge, and the pres
ence of the radiant, outspreading
corona are simultaneous. The phe-
nomena of the earlier eclipses were
Recorded in the most general manner.
"Hasty drawings of the streamers
of the corona, accompanied by de-
scriptions reflecting but the dawn of
scientific method, are the chief re-
suits. 1t was not until the applica-
ton of the spectroscope and the
Photographic camera that the as
tronomer attained real insight into
the stupendous phenomena"