WEBVTT 00:01.570 --> 00:17.450 web 00:17.450 --> 00:20.800 trick-or-treating with us sevens sinister sisters 00:20.800 --> 00:25.020 hey there stargazers I'm demery guess astronomer for the Cincinnati 00:25.020 --> 00:25.950 Observatory 00:25.950 --> 00:29.460 and I'm James all very director the key cassava pop planetarium in Gainesville 00:29.460 --> 00:30.050 Florida 00:30.050 --> 00:34.030 we're here to help you find your way around the sky tonight because Halloween 00:34.030 --> 00:36.660 greeting cards often depict a witch 00:36.660 --> 00:41.160 riding a broom in front of a full moon many people have the mistaken notion 00:41.160 --> 00:42.420 that there's a full moon 00:42.420 --> 00:46.760 every year at Halloween when in fact we won't have a full moon on Halloween 00:46.760 --> 00:47.309 again 00:47.309 --> 00:51.140 until 2020 this Halloween the gibbous moon 00:51.140 --> 00:55.500 will be trick-or-treating in the sky with mars Jupiter and Mercury 00:55.500 --> 00:58.940 but they're is something you can see in the night sky 00:58.940 --> 01:02.610 every Halloween that is even if tear and definitely spookier 01:02.610 --> 01:05.930 because every Halloween the plea eighties the Seven Sisters 01:05.930 --> 01:09.190 fly high across the sky that night let's show you 01:09.190 --> 01:12.740 okay we're facing East before dawn 01:12.740 --> 01:16.720 and Jupiter and Mercury will be visible Jupiter will be very bright 01:16.720 --> 01:20.539 and you can use the Big Dipper to are tart terrace and then march 01:20.539 --> 01:26.209 onto mercury then look south west about an hour after sunset Monday night the 27 01:26.209 --> 01:28.090 four days before Halloween 01:28.090 --> 01:31.140 first thing you'll notice is a young crescent moon 01:31.140 --> 01:35.369 there's not enough time for the moon to reach the four-phase before Halloween 01:35.369 --> 01:38.950 so no full moon for the which to fly across this year 01:38.950 --> 01:43.050 just Simmons left you'll see the bright reddish orange planet Mars 01:43.050 --> 01:47.470 marceau remain low in the southwest evening sky for the rest of the year 01:47.470 --> 01:51.229 as earth leaves mars farther and farther behind as we both 01:51.229 --> 01:55.380 orbit the Sun let's advance one day and the moonwalk fatten up a bit 01:55.380 --> 02:00.190 and move above Mars on Tuesday evening let's go one more day to wednesday 02:00.190 --> 02:01.050 evening 02:01.050 --> 02:04.130 the moon's a bit fatter and a bit farther from mars 02:04.130 --> 02:08.190 Thursday night the moon is waxing more and has moved farther 02:08.190 --> 02:12.060 East notice how much the moon moves from one night to the next 02:12.060 --> 02:16.379 Friday night Halloween the moon is still a long way from fall 02:16.379 --> 02:19.819 but they're is a hollow weenie object in this evening sky 02:19.819 --> 02:25.480 let's turn and look northeast and a plea eighties are just rising but wire the 02:25.480 --> 02:29.040 plea eighties and Halloween LinkedIn so many people's minds 02:29.040 --> 02:32.220 let's quote Jack Horkheimer on this one 02:32.220 --> 02:37.170 too many people long ago when the please reach their highest point at midnight 02:37.170 --> 02:40.690 it was a signal that this was the time of the year two honor the debt 02:40.690 --> 02:45.050 many people's belief that a great inch in Cataclysm occurred when the pleadings 02:45.050 --> 02:48.320 were overhead at midnight such as the great biblical flood 02:48.320 --> 02:52.840 or the thinking about lantus the belief was so widespread that in mexico 02:52.840 --> 02:57.570 the Pyramid of the Sun tayo t work was built to align with the setting up the 02:57.570 --> 02:58.360 plea eighties 02:58.360 --> 03:02.380 as we're all the city's West running streets an ancient Greece 03:02.380 --> 03:06.540 several temples were lined up with the rising and setting up the Seven Sisters 03:06.540 --> 03:10.600 the Aztec and Mayan not only believe that the world would come to an and on 03:10.600 --> 03:13.810 one of these plea eighties overhead at midnight nights 03:13.810 --> 03:17.329 but we're convinced that the world had already been destroyed 03:17.329 --> 03:20.470 and recreated four times on just such a night 03:20.470 --> 03:23.950 should we rename them the seven sinister sisters 03:23.950 --> 03:28.260 although the plate is no longer reach their highest point 03:28.260 --> 03:31.740 that is calm in a exactly at midnight on Halloween 03:31.740 --> 03:35.030 as they did in 1000 BC nevertheless 03:35.030 --> 03:38.890 they're still very high in the southeast every Halloween at midnight 03:38.890 --> 03:42.690 as a modern reminder that ancestors were deeply moved 03:42.690 --> 03:45.730 and affected by the cosmos and use many 03:45.730 --> 03:49.160 cosmic coincidence is to determine important religious 03:49.160 --> 03:53.560 in ceremonial events in their life and for what we can see this year 03:53.560 --> 03:57.970 get outside and look up after sunset at the young Mounir mars next week 03:57.970 --> 04:01.410 and get outside this Halloween or any Halloween at midnight 04:01.410 --> 04:04.550 look high and East for the beautiful cluster stars 04:04.550 --> 04:08.150 known as the pleats and the Seven Sisters or 04:08.150 --> 04:11.520 as Jack like to call my Halloween the seventh sinister sisters 04:11.520 --> 04:15.660 and as you look at them remind yourself that these same stars 04:15.660 --> 04:19.750 have been seen by thousands and generations we've gone before us 04:19.750 --> 04:23.840 use all them as very important in determining their own special days of 04:23.840 --> 04:24.500 the year 04:24.500 --> 04:28.460 when the honor their day and although it might be a bit creepy 04:28.460 --> 04:32.199 don't you agree that seven sisters at midnight or even better than 04:32.199 --> 04:36.900 performing Halloween I mean seven which is before midnight 04:36.900 --> 04:53.580 keep looking up 04:53.580 --> 04:54.949 way 04:54.949 --> 04:59.949 ok