Lunar Corona Moon Solar System Astronomy 90+ Y/O Ad Trade Card

Description

Lunar Corona Moon Solar System Astronomy 90+ Y/O Ad Trade 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 90+  YEAR OLD TRADE  ADVERTISING CARD
THE TITLE ON THIS CARD IS:
A LUNAR CORONA
Lunar coronae are much more familiar than those around the sun. They are seen when the clouds are thin
enough that each single corona light ray reaching the eye is scattered or diffracted by only one droplet.
Of course, the whole corona is made by a great many droplets individually scattering the moonlight.
Sometimes as clouds pass over the moon the corona shrinks and swells as different sized droplets mould
it. Small droplets make the largest coronae with aureoles a few moon diameters across.
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 90+ YEARS OLD
IT IS NOT PERFECT AND THIS CARD MAY HAVE
SLIGHT PAPER LOSS
SMUDGING
ROUNDED CORNERS
SURFACE CREASE
SEE THE IMAGES ABOVE!
29
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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!