WEBVTT

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MAY THE FOURTH BE WITH YOU STAR NERDS. I M TRACE,
AND IN HONOR OF LUKE SKYWALKER S DOUBLE-SUNNED

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HOME PLANET LET S FIND AN OPTICAL
DOUBLE STAR SYSTEM IN OUR OWN SKIES!

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HIT THE DARKNESS ANY NIGHT THIS WEEK JUST AFTER

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DARK AND FACE NORTH TO FIND
THE BIG DIPPER IN URSA MAJOR.

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LOOK FOR THE STAR AT THE BEND IN THE BIG
DIPPER'S HANDLE: THAT S MIZAR AND IF YOU

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LOOK CLOSELY YOU LL SEE A SMALL, FAINT
COMPANION STAR NAMED ALCOR. TOGETHER,

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THEY RE CALLED THE HORSE AND RIDER AND WERE
OFTEN USED AS A TEST OF A PERSON S EYESIGHT.

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IN STAR WARS, TATOOINE IS A DESERT PLANET
WITH TWO SUNS CALLED A BINARY STAR SYSTEM.

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MIZAR AND ALCOR AREN T IN THE SAME
SYSTEM, THEY JUST APPEAR CLOSE TOGETHER,

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BUT MOST POINTS OF LIGHT WE SEE ARE
MULTI-STAR SYSTEMS WITH TWO (OR MORE)

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STARS! THE KEPLER SPACE TELESCOPE FOUND
AN EXOPLANET ORBITING TWO STARS IN 2011!

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BUT THAT CAN T BE TATOOINE BECAUSE IT S
IN A GALAXY FAR, FAR AWAY. KEEP LOOKIN UP!