Rise and Set Stars Astronomy 100+ Y/O Trade Ad Card

Description

Rise and Set Stars Astronomy 100+ Y/O Trade Ad Card
NOTE:
THESE ARE NOT POSTCARDS
THEY ARE TRADE/ADVERTISING CARDS.
THEY ARE MUCH SMALLER THAN A STANDARD POSTCARD
AND
THERE IS ADVERTISING TEXT ON THE BACK!
THE CARD DIMENSIONS ARE APPROXIMATELY
2 5/8 '' x 1 3/8 ''  or  6.5 cm. x 3.5 cm.
THIS IS AN ORIGINAL 100+ YEAR OLD TRADE  ADVERTISING CARD
THE TITLE ON THIS CARD IS:
PATHS AND PEARLS
Because the earth is rotating the sky appears to rotate. Viewed from above the north pole, the earth is rotating
counter-clockwise. For an observer on the earth, objects move from east to west (this is true for both
northern and southern hemispheres). More accurately put, when looking north, objects in the sky move
counter-clockwise.
Though all objects rotate in the sky, the observed path stars make in the sky depend on the observer's
latitude. Some are always in the observer's sky, some some of the time, and others are never observable.
During the rotation of the earth, some stars rise from below the eastern horizon and later set below the
western horizon. Appropriately enough, these stars are called rise and set stars.
The angle rise and set stars (including the sun) make with the horizon as they rise is the same for all rise and
set stars for that observer. Specifically, the angle is 90- |observer's latitude|. They make this same angle in
west. In the northern hemisphere the angle is tilted towards the south and in the southern hemisphere the angle
is tilted towards the north.
NOTE:
THE REVERSE SIDE HAS TEXT ABOUT THE IMAGE ON THE FRONT SIDE
THE CARD DIMENSIONS ARE APPROXIMATELY
2 5/8 '' x 1 3/8 ''  or  6.5 cm. x 3.5 cm.
NOTE:
THE IMAGE ABOVE IS LARGER THAN THE CARD
TO SHOW THE DETAIL.
SEE SCALED IMAGE ABOVE.
THIS CARDS IS NOT A MODERN REPRODUCTION
THIS CARD IS 100+ YEARS OLD
IT IS NOT PERFECT AND THIS CARD MAY HAVE
SLIGHT PAPER LOSS
SMUDGING
ROUNDED CORNERS
SURFACE CREASE
SEE THE IMAGES ABOVE!
15
WE COMBINE SHIPPING
BUY 1 TO 4 TRADE ADVERTISING CARDS AND THE TOTAL TO SHIP IS
BUY 5 TRADE ADVERTISING CARDS AND SHIPPING IS FREE
NOTE:
ON LARGER INTERNATIONAL ORDERS WE MAY REQUIRE REGISTERD
MAIL AND WILL SPLIT THE COST WITH THE BUYER.
INQUIRE IF CONCERNED!