El Paso herald. (El Paso, Tex.) 1901-1931, 1913-08-02

great rapfdity with which Il revolves
upon its axis, making d complete rev
Olution in the remarkably short period
OF 9 hours and 55 minutes; the axiaI
rotation is nearly perpendicular to the
plane of its orbit Its polar diameter
is $3.50 miles and it equatorial diam
eter is $4,000 miles. It revOlves east
ward in its orbit about the sun in
period Of II years, 10 months and Il
days, passings through one cOnstella-
ton on the average a year
Jupiter has eight known satellites. or
moons, but only four of them are visi-
bic IN the ordinary telescope, the others
can only be seen by the aid OF the most
powerful Telescopes These satellites
are designated by the Roman numerals
I, II, III, ", etc, in the order OF their
distance from the planet outward.
No. I is 2,5OO miles in diameter and
260s000 miles distant from Jupiter. and
its period Of revolution about the
planet is one day, IS hours and 20
minutes. No. II is 400 miles in diam
eter and $4,000 miles distant and its
period is three days, Is hours and II
minutes No. III is $500 miles in diam
eter, 664 900 miles distant and its period
is seven days, three hours, SO minutes
No. ", 5000 miles in diameter is
1.167,000 miles distant, and its period IS
16 days, 16 hours and 50 minutes.
Discovery of Satellites.
Satellites I. II, III and " were dis
covered by Calico in 1910. No. ' by
Prof. z. E Barnard, usually, In 1882
This is the innermost satellite. being
$4,000 miles distant from Jupiter, and
is 100 miles in diameter Moss VI and
VII were discovered by Perrine, Of the
Lick observatory, in 1S04-5. No. VII
was discovered by Prof. P J. MelOIUes
of the Greenwich observatory. in 1905
This satellite is Of the 18th magnitude
and is estimated to be not more than
IS miles in diameter. It revOlveS west
ward about its primary while all the
other satellites of Jupiter reVOlTe east
ward, and it is also noted for its very
remarkable orbit being much more
distant from its primary than any other
known satellite. Its nearest distance
from Jupiter IS 10 600 600 miles and
its greatest distance 10000, 600 miles.
and its period of revolution is $50 days
JupiteF is believed to be in a gaseous
envelope ana that the real planet PROB
ably lies thousands of miles within It
1t shines by reflected light only. Dusky
belts mark the equatorial region, and
what is known as the Great Red Spot
has excited the liveliest consideration
among astronomers.
Partial Eclipse Of the sun Aug. 81.
There viii be a partial eclipse Of the
sun on Aug 81, visible only in Iceland,
Greenland. Labrador, Newfoundland
and the extreme eastern portions OF
quebec, New Brunswick and Nova
Scotia
August Planetary CONFEDERATION.
Aug. I. 6:S6 a m Neptune and moon
In conjunction Neptune degrees 80
minutes south
in conjunction Mercury degrees, 50
minutes south
Aug. 4, a n. Mercury and sun at
inferior conjunction
Aug. 5, s p. m. Mercury greatest hell
Ocentric lat south.
Aug. u, s;2I p. m. Jupiter and moon
IN conjunction Jupiter degrees, o
minutes north.
Aug. Is. D m. Mercury stationary.
Aug IA 11:01 p. m Uranus and moon
in conjunction. Uranus degrees Y
Aug. %. a m. Mercury greatest
elongation west IS degrees, 26 minutes
Aug "a 10 a m Mars and Saturn in
conjunction Mars 1 degree minutes
north.
Aug q. p m Mercury in ascend
Aus. Is. 11:46 D. m. Saturn and moon
in conjunction Saturn degrees, 5S
minutes south
Aug. 26, I:2I a m. Mars and moon in.
conjunction Mars 5 degrees, 43 min
Aug. 2S. ass p. m. Venus and moon
in conjunction Venus 5 degrees. 25
minutes south.
Aug. IS. $50 p. m. Neptune and moon
in conjunction Neptune degrees
Aus. %. Il a m Mercury in pehI-
heliOn.
Aus. %, 5 q. m. Venus and Neptune
in conjunction. Venus south IS minutes
Aug. 80. S:41 D. m Mercury and moon
IN conjunction. Mercury ! degree s.
minutes south.
Moon Phases.
Aug. ? a. m. New moon
Aug. s. 9-11 .. m. First quarter.
Aug. IS, 1877 D m. Full moon.
Aug. p, 5:2l D. m Last quarter.
n n Nav