1 00:00:20,754 --> 00:00:24,824 JAMES: WELCOME TO STAR GAZERS. 2 00:00:24,924 --> 00:00:28,862 I'M JAMES ALBURY, DIRECTOR OF THE KIKA SILVA PLA PLANETARIUM IN GAINESVILLE, FLORIDA. 3 00:00:28,962 --> 00:00:32,332 DEAN: AND I'M DEAN REGAS, ASTRONOMER FROM THE CINCINNATI OBSERVATORY. 4 00:00:32,432 --> 00:00:37,737 JAMES: BACK IN MAY, WE TOLD YOU ABOUT SOME TRIANGLES YOU COULD SEE IN THE SKY AFTER MIDNIGHT. 5 00:00:37,837 --> 00:00:42,008 WELL, THANKS TO OUR POSITIONING IN THE SOLAR SYSTEM AND THE ARRANGEMENT OF THE PLANETS, 6 00:00:42,108 --> 00:00:46,246 WE GET TO SEE ANOTHER TRIANGLE FORMED BY THE PLANETS, AND A LOT EARLIER IN THE NIGHT! 7 00:00:46,346 --> 00:00:47,747 DEAN: THAT'S RIGHT, JAMES! 8 00:00:47,847 --> 00:00:52,252 THE OTHER TRIANGLE YOU SEE EVERY YEAR, HIGH OVER HEAD ON LABOR DAY. 9 00:00:52,352 --> 00:00:54,087 WONDERING WHAT WERE TALKING ABOUT? 10 00:00:54,187 --> 00:00:55,989 LETS SHOW YOU! 11 00:00:56,089 --> 00:00:59,793 DEAN: OK, WE HAVE OUR SKIES SET UP FOR ABOUT AN HOUR AFTER SUNSET, ON LABOR DAY, SEPTEMBER 12 00:00:59,893 --> 00:01:01,728 5TH, FACING WEST. 13 00:01:01,828 --> 00:01:07,400 THE FIRST THING YOU'LL SEE IS THE WAXING CRESCENT MOON AMONG THE STARS OF VIRGO THE MAIDEN. 14 00:01:07,500 --> 00:01:12,272 THE BRIGHTEST STAR, SPICA IS VERY CLOSE TO THE HORIZON, AND WILL GET CAUGHT UP IN THE 15 00:01:12,372 --> 00:01:13,540 SUN'S GLARE SOON. 16 00:01:13,640 --> 00:01:17,143 SO, IF YOU WANT TO SEE IT, CHECK IT OUT ON LABOR DAY! 17 00:01:17,243 --> 00:01:22,715 JAMES: NEXT, LOOK TOWARD THE SOUTH AND YOU'LL SEE THE FAMILIAR SHAPE OF SCORPIUS THE SCORPION. 18 00:01:22,816 --> 00:01:26,352 AMONG THESE STARS IS OUR FIRST TRIANGLE OF THE EVENING. 19 00:01:26,453 --> 00:01:30,623 THE NORTHERN-MOST POINT IN THIS TRIANGLE IS THE RINGED PLANET, SATURN. 20 00:01:30,723 --> 00:01:34,961 SATURN'S RINGS ARE TIPPED TOWARD US IN SUCH A WAY THAT IF YOU HAVE A SMALL TELESCOPE, 21 00:01:35,061 --> 00:01:37,764 YOU'LL GET A PICTURE-PERFECT VIEW. 22 00:01:37,864 --> 00:01:42,035 SATURN IS ALSO GETTING A LITTLE FURTHER AWAY FROM US AND GETTING A LITTLE DIMMER, SO THIS 23 00:01:42,135 --> 00:01:46,272 IS THE BRIGHTEST AND BIGGEST IT WILL BE UNTIL NEXT YEAR THIS TIME. 24 00:01:46,372 --> 00:01:47,974 MAKE SURE YOU CHECK IT OUT THIS WEEK! 25 00:01:48,074 --> 00:01:52,545 DEAN: THE LEFT-MOST STAR IN THE TRIANGLE IS THE RED PLANET MARS. 26 00:01:52,645 --> 00:01:58,651 MARS IS STILL FAIRLY CLOSE TO US, BUT LIKE SATURN, ITS ALSO GETTING FARTHER AWAY AND 27 00:01:58,751 --> 00:02:00,720 A LITTLE DIMMER EACH DAY. 28 00:02:00,820 --> 00:02:06,259 MARS WAS NAMED AFTER THE ROMAN GOD OF WAR, BECAUSE THE RED COLOR OF THIS PLANET REMINDED 29 00:02:06,359 --> 00:02:09,362 MANY ANCIENT PEOPLE OF BLOOD AND VIOLENCE. 30 00:02:09,462 --> 00:02:14,534 JAMES: THE FINAL PART OF OUR TRIANGLE IS FORMED BY THE STAR, ANTARES. 31 00:02:14,634 --> 00:02:19,706 ANTARES MEANS RIVAL OF MARS AND IF YOU LOOK AT IT CLOSELY, IT HAS THE SAME REDDISH TINT 32 00:02:19,806 --> 00:02:21,508 AS MARS. 33 00:02:21,608 --> 00:02:26,346 HOWEVER, THIS RED CELESTIAL DAZZLER ISN'T RED FOR THE SAME REASON THAT MARS IS RED. 34 00:02:26,446 --> 00:02:30,917 ANTARES IS A RED SUPERGIANT STAR THAT'S NEARING THE END OF ITS LIFE. 35 00:02:31,017 --> 00:02:36,523 THIS STAR IS JUST OVER 550 LIGHT YEARS AWAY FROM US AND IT'S SO LARGE THAT YOU COULD EASILY 36 00:02:36,623 --> 00:02:42,228 FIT THE ORBITS OF MERCURY, VENUS, EARTH AND MARS INSIDE IT. 37 00:02:42,328 --> 00:02:46,799 DEAN: ALRIGHTY, LET'S TAKE A LOOK AT OUR SECOND TRIANGLE FOR LABOR DAY. 38 00:02:46,900 --> 00:02:51,404 JAMES: OK, WE STILL HAVE OUR SKIES SET TO AN HOUR AFTER SUNSET (21:00) AND IF YOU LOOK 39 00:02:51,504 --> 00:02:56,776 DIRECTLY OVERHEAD YOU WILL SEE THE 3 BRILLIANT STARS OF THE SUMMER TRIANGLE. 40 00:02:56,876 --> 00:03:00,113 VEGA IS THE BRIGHTEST STAR OF LYRA THE HARP. 41 00:03:00,213 --> 00:03:04,417 DENEB IS THE BRIGHTEST STAR OF CYGNUS THE SWAN AND ALTAIR IS THE BRIGHTEST STAR OF AQUILA, 42 00:03:04,517 --> 00:03:06,286 THE EAGLE. 43 00:03:06,386 --> 00:03:11,191 DEAN: THE BRIGHTEST STAR IN THE TRIANGLE IS VEGA AND ITS ONLY 25 LIGHT YEARS FROM EARTH, 44 00:03:11,291 --> 00:03:14,894 AND IS ONE OF THE MOST LUMINOUS STARS IN OUR NEIGHBORHOOD. 45 00:03:14,994 --> 00:03:20,600 JAMES: THE SECOND BRIGHTEST STAR IN THE SUMMER TRIANGLE IS ALTAIR AND IT IS ONLY 17 LIGHT 46 00:03:20,700 --> 00:03:22,001 YEARS FROM EARTH. 47 00:03:22,101 --> 00:03:26,206 OF ALL THE STARS NEAR US, ALTAIR SPINS THE FASTEST. 48 00:03:26,306 --> 00:03:31,811 AT ITS EQUATOR, ALTAIR CAN MAKE ONE COMPLETE ROTATION IN ONLY 9 HOURS! 49 00:03:31,911 --> 00:03:36,416 COMPARE THAT TO OUR SUN, WHICH TAKES 26 DAYS TO COMPLETE ONE ROTATION. 50 00:03:36,516 --> 00:03:41,621 DEAN: THE LAST STAR OF THE SUMMER TRIANGLE IS THE BLUE-WHITE SUPERGIANT DENEB. 51 00:03:41,721 --> 00:03:48,161 DENEB JUST HAPPENS TO BE THE NORTH STAR ON MARS AND IS ALMOST 60,000 TIMES AS BRIGHT 52 00:03:48,261 --> 00:03:54,500 AS OUR SUN, HOWEVER, BECAUSE IT'S OVER 3,000 LIGHT YEARS AWAY FROM US, IT APPEARS MUCH 53 00:03:54,601 --> 00:03:56,536 FAINTER THAN VEGA AND ALTAIR. 54 00:03:56,636 --> 00:04:02,675 JAMES: SO THERE YOU HAVE IT, TWO BRIGHT TRIANGLES TO LIGHT UP YOUR NIGHT SKY THIS LABOR DAY. 55 00:04:02,775 --> 00:04:04,944 MARS, SATURN AND ANTARES. 56 00:04:05,044 --> 00:04:11,050 DEAN: AND THE EVER POPULAR AND LOVELY SUMMER TRIANGLE, VEGA, ALTAIR AND DENEB. 57 00:04:11,150 --> 00:04:15,150 BOTH: KEEP LOOKING UP!