WEBVTT 00:02.302 --> 00:23.123 align:left position:15%,start line:89% size:75% DEAN: HEY THERE STAR GAZERS. 00:23.223 --> 00:25.892 align:left position:72.5%,start line:83% size:17.5% I'M DEAN REGAS, ASTRONOMER FOR THE CINCINNATI OBSERVATORY. 00:25.992 --> 00:30.163 align:left position:75%,start line:83% size:15% JAMES: AND I'M JAMES ALBURY, DIRECTOR OF THE KIKA SILVA PLA PLANETARIUM IN GAINESVILLE, 00:30.263 --> 00:31.398 align:left position:40%,start line:89% size:50% FLORIDA. 00:31.498 --> 00:34.467 align:left position:75%,start line:83% size:15% WE'RE HERE TO HELP YOU FIND YOUR WAY AROUND THE SKY. 00:34.567 --> 00:37.070 align:left position:77.5%,start line:83% size:12.5% IT'S EMBARRASSING TO ADMIT, BUT DEAN AND I HAVE FAVORITE STARS. 00:37.170 --> 00:38.171 align:left position:20%,start line:89% size:70% DEAN: WHO'S EMBARRASSED? 00:38.271 --> 00:40.173 align:left position:37.5%,start line:89% size:52.5% IT'S TRUE! 00:40.273 --> 00:44.444 align:left position:75%,start line:83% size:15% NOW, YOU MAY THINK WE'VE BEEN LOOKING AT THE STARS TOO LONG, BUT SOME STARS JUST HAVE CHARACTER. 00:44.544 --> 00:48.882 align:left position:70%,start line:83% size:20% JAMES: STARS VARY IN BRIGHTNESS, SIZE, DISTANCE, AND ESPECIALLY COLOR. 00:48.982 --> 00:52.352 align:left position:75%,start line:83% size:15% DEAN: WHEN WE THINK OF STARS, WE IMMEDIATELY THINK THEY'RE ALL WHITE. 00:52.452 --> 00:53.887 align:left position:40%,start line:89% size:50% NOT SO. 00:53.987 --> 00:56.956 align:left position:72.5%,start line:83% size:17.5% STARS COME IN ALL COLORS OF THE RAINBOW, FROM RUBY RED TO TANGERINE 00:57.057 --> 00:59.492 align:left position:77.5%,start line:89% size:12.5% JAMES: FROM PLATINUM-BLONDE TO DEEP BLUE. 00:59.592 --> 01:03.963 align:left position:75%,start line:83% size:15% DEAN: AND THESE DISTINCT COLORS THAT YOU CAN SEE WITH THE NAKED EYE TELL US A LOT. 01:04.064 --> 01:05.698 align:left position:22.5%,start line:89% size:67.5% HERE, LET'S SHOW YOU 01:05.799 --> 01:10.770 align:left position:77.5%,start line:83% size:12.5% JAMES: WE HAVE OUR SKIES SET FOR ANY NIGHT THIS WEEK AFTER SUNSET FACING SOUTHWEST. 01:10.870 --> 01:15.075 align:left position:77.5%,start line:83% size:12.5% THERE YOU'LL FIND THE CONSTELLATION ORION THE HUNTER WITH HIS DISTINCTIVE BELT OF THREE 01:15.175 --> 01:16.776 align:left position:42.5%,start line:89% size:47.5% STARS. 01:16.876 --> 01:19.646 align:left position:75%,start line:83% size:15% IF YOU LOOK A LITTLE CLOSER YOU'LL SEE STARS OF DIFFERENT BRIGHTNESS AND COLOR. 01:19.746 --> 01:24.884 align:left position:65%,start line:83% size:25% DEAN: STAR COLOR IS AN INDICATION OF ITS TEMPERATURE - BLUE STARS BEING THE HOTTEST AND RED STARS 01:24.984 --> 01:26.486 align:left position:27.5%,start line:89% size:62.5% BEING THE COLDEST. 01:26.586 --> 01:30.423 align:left position:72.5%,start line:83% size:17.5% YOU CAN REALLY SEE THE COLORS OF THE BRIGHTEST STARS LIKE THOSE IN ORION. 01:30.523 --> 01:34.861 align:left position:77.5%,start line:83% size:12.5% MOST OF HIS STARS ARE BLUE - LIKE THE BELT STARS ALNITAK, ALNILAM, AND MINTAKA. 01:34.961 --> 01:38.665 align:left position:75%,start line:83% size:15% JAMES: AND ORIONS LEFT FOOT, THE STAR RIGEL IS BLUE TOO. 01:38.765 --> 01:43.369 align:left position:72.5%,start line:83% size:17.5% DEAN: BUT MY FAVORITE BLUE STAR IS IN ORION'S SHOULDER - CALLED BELLATRIX. 01:43.470 --> 01:45.805 align:left position:72.5%,start line:83% size:17.5% BELLATRIX IS ONE OF THE HOTTEST STARS AT OVER 38,000 DEGREES. 01:45.905 --> 01:51.511 align:left position:72.5%,start line:83% size:17.5% THROUGH A TELESCOPE, BELLATRIX IS THE DEEPEST BLUE I HAVE EVER SEEN. 01:51.611 --> 01:55.515 align:left position:75%,start line:83% size:15% WHENEVER I SHOW THIS STAR TO VISITORS AT THE OBSERVATORY, THEY BECOME MESMERIZED. 01:55.615 --> 01:58.551 align:left position:77.5%,start line:89% size:12.5% JAMES: BELLATRIX HAS A MYSTERIOUS HISTORY. 01:58.651 --> 02:01.588 align:left position:72.5%,start line:89% size:17.5% ITS NAME MEANS "BEAUTIFUL AMAZON-WOMAN-STAR." 02:01.688 --> 02:05.658 align:left position:70%,start line:83% size:20% THE STAR'S INFLUENCE WAS SAID TO PRODUCE STRONG QUALITIES IN WOMEN, AND RENDERED THOSE BORN 02:05.758 --> 02:07.927 align:left position:12.5%,start line:89% size:77.5% UNDER IT LUCKY AND LOQUACIOUS. 02:08.027 --> 02:10.864 align:left position:70%,start line:83% size:20% HOWEVER, LITTLE ELSE IS KNOWN ABOUT THE ORIGINS OF THIS NAME. 02:10.964 --> 02:16.302 align:left position:75%,start line:83% size:15% DEAN: BUT WHAT IS SUCH A FEMININE STAR DOING IN ORION, THE BIGGEST, BADDEST MACHO MAN IN 02:16.402 --> 02:17.937 align:left position:40%,start line:89% size:50% THE SKY? 02:18.037 --> 02:21.541 align:left position:75%,start line:83% size:15% AS TOUGH AS ORION IS, I GUESS HE'S STILL IN TOUCH WITH HIS FEMININE SIDE. 02:21.641 --> 02:25.178 align:left position:75%,start line:83% size:15% DEAN: MARKING ORION'S OTHER SHOULDER IS THE STAR BETELGEUSE. 02:25.278 --> 02:30.583 align:left position:72.5%,start line:83% size:17.5% ACTUALLY, IN MOST LEGENDS, ORION HAS HIS RIGHT ARM RAISED, HOLDING A CLUB, AND BETELGEUSE 02:30.683 --> 02:33.386 align:left position:20%,start line:89% size:70% MARKS HIS, UH, UNDERARM. 02:33.486 --> 02:37.924 align:left position:77.5%,start line:83% size:12.5% BETELGEUSE ROUGHLY TRANSLATES FROM ANCIENT ARABIC AS ARMPIT OF THE GIANT. 02:38.024 --> 02:42.762 align:left position:72.5%,start line:83% size:17.5% JAMES: NOT ONLY DOES THIS STAR HAVE A COLORFUL NAME, BUT IT ALSO SHINES WITH A BEAUTIFUL 02:42.862 --> 02:44.564 align:left position:37.5%,start line:89% size:52.5% RED GLOW. 02:44.664 --> 02:49.169 align:left position:72.5%,start line:83% size:17.5% THIS COLOR GIVES US A HINT TO ITS TEMPERATURE - ABOUT 5,800 DEGREES ON ITS SURFACE. 02:49.269 --> 02:51.104 align:left position:10%,start line:89% size:80% MUCH COLDER THAN BLUE BELLATRIX. 02:51.204 --> 02:56.176 align:left position:72.5%,start line:83% size:17.5% DEAN: THE NATIVE AMERICANS OF THE AMAZON RIVER VALLEY LINK THESE TWO, BELLATRIX AND BETELGEUSE, 02:56.276 --> 02:58.077 align:left position:20%,start line:89% size:70% IN A MYTHOLOGICAL STORY. 02:58.178 --> 03:03.516 align:left position:72.5%,start line:83% size:17.5% THEY PICTURE BELLATRIX AS A YOUNG BOY SWIFTLY PADDLING HIS CANOE, WHILE OLD MAN BETELGEUSE 03:03.616 --> 03:05.385 align:left position:17.5%,start line:89% size:72.5% IS STRUGGLING TO KEEP UP. 03:05.485 --> 03:09.856 align:left position:77.5%,start line:83% size:12.5% JAMES: BUT THE BRIGHTEST STAR IN THE NIGHT SKY IS THE DOG STAR, SIRIUS, OVER TO THE LEFT 03:09.956 --> 03:11.691 align:left position:37.5%,start line:89% size:52.5% OF ORION. 03:11.791 --> 03:16.729 align:left position:77.5%,start line:83% size:12.5% SIRIUS BLAZES WITH A STARK WHITE LIGHT IN THE SOUTH, AND A TEMPERATURE OF ABOUT 17,000 03:16.829 --> 03:18.698 align:left position:40%,start line:89% size:50% DEGREES. 03:18.798 --> 03:23.336 align:left position:75%,start line:83% size:15% DEAN: SIRIUS IS A TINY STAR COMPARED TO BLUE BELLATRIX, AND IS ALMOST NOTHING NEXT TO BEHEMOTH 03:23.436 --> 03:25.205 align:left position:35%,start line:89% size:55% BETELGEUSE. 03:25.305 --> 03:30.610 align:left position:72.5%,start line:83% size:17.5% THE ONLY REASON SIRIUS IS SO BRIGHT IS BECAUSE ITS SO MUCH CLOSER TO US - ONLY 8.6 LIGHT 03:30.710 --> 03:32.345 align:left position:35%,start line:89% size:55% YEARS AWAY. 03:32.445 --> 03:37.517 align:left position:72.5%,start line:83% size:17.5% COMPARED TO OVER 240 LIGHT YEARS TO BELLATRIX AND 640 LIGHT YEARS TO BETELGEUSE. 03:37.617 --> 03:42.021 align:left position:75%,start line:83% size:15% JAMES: CAPELLA IS A BRIGHT STAR REALLY HIGH IN THE WESTERN SKY THIS EVENING. 03:42.121 --> 03:46.025 align:left position:75%,start line:83% size:15% CAPELLA IS SIMILAR TO OUR SUN IN TEMPERATURE - AND SO IT SHOULD LOOK ABOUT THE SAME COLOR 03:46.125 --> 03:47.527 align:left position:27.5%,start line:89% size:62.5% - YELLOWISH-WHITE. 03:47.627 --> 03:49.229 align:left position:15%,start line:89% size:75% BUT CAPELLA IS MUCH LARGER. 03:49.329 --> 03:53.833 align:left position:77.5%,start line:83% size:12.5% DEAN: PLUS THERES NOT JUST ONE STAR THERE, BUT FOUR STARS ORBITING EACH OTHER! 03:53.933 --> 03:59.072 align:left position:72.5%,start line:83% size:17.5% IMAGINE ALL THE SUNSETS AND SUNRISES YOU COULD SEE FROM A PLANET IN A SYSTEM WITH FOUR SUNS! 03:59.172 --> 04:02.809 align:left position:75%,start line:83% size:15% JAMES: LIKE CAPELLA, OUR SUN FALLS RIGHT IN THE MIDDLE OF THE TEMPERATURE SPECTRUM. 04:02.909 --> 04:06.779 align:left position:75%,start line:83% size:15% WITH A SURFACE TEMPERATURE OF ROUGHLY 10,000 DEGREES FAHRENHEIT, THE SUN BATHES US IN THE 04:06.879 --> 04:08.781 align:left position:80%,start line:89% size:10% YELLOW-WHITE LIGHT WE ALL KNOW AND LOVE. 04:08.881 --> 04:12.619 align:left position:77.5%,start line:83% size:12.5% DEAN: I KNOW THAT DIMMER STARS ALL APPEAR WHITE TO OUR EYES. 04:12.719 --> 04:16.956 align:left position:75%,start line:83% size:15% BUT IF YOU LOOK AT THESE SAME STARS THROUGH BINOCULARS OR A TELESCOPE, YOU'LL SEE THEIR 04:17.056 --> 04:18.825 align:left position:87.5%,start line:89% size:2.5% INDIVIDUAL COLORS MORE DISTINCTLY. 04:18.925 --> 04:23.396 align:left position:72.5%,start line:83% size:17.5% JAMES: FROM RED TO BLUE, THE HUES ARE SUBTLE, BUT ONCE YOU TRAIN YOUR EYE TO SEARCH OUT 04:23.496 --> 04:27.233 align:left position:75%,start line:83% size:15% THESE VARIATIONS OF COLOR, YOU MAY DISCOVER THAT YOU HAVE FAVORITE STARS TOO. 04:27.333 --> 04:31.333 align:left position:22.5%,start line:89% size:67.5% BOTH: KEEP LOOKING UP!