This meteor shower's radiant point
lies within the constellation Perseus.
This is because the direction and radiant point
, from which the shower seems to come in the sky, lies in the same direction as Perseus.
Caption: The Perseid meteors appear to stream away from the shower's radiant point
near the border of Perseus and Cassiopeia.
The Lyrid got its name from its radiant point
, which is the constellation Lyra, the Lyre.
Locator - points to the origin point of the meteor shower in the sky for best viewing angles, also, taking into consideration that at times the meteor trajectory could start below the earth and follow that path over a period of time.
The meteors often don't become visible until they are 30 degrees or so from their radiant point
-- and they will streak out from the radiant in all directions meaning the the meteors will appear in all parts of the sky.
But if you trace their lines of flight backward far enough (such as by holding a pencil or yardstick up to the sky), all their backward lines will cross the radiant point
UFO Orbit was used to derive the radiant point
for each dual-station Geminid, corrected for zenith attraction.
"Since the radiant point
is close to Perseus, it is common to see them streaking right along the Milky Way, even as far away as Sagittarius," he said.
Under the agreement Gas City will deploy Radiant Point
of Sale (POS) and related technology at approximately 50 locations in Northeast Illinois, Northwest Indiana, Florida and Arizona.