WEBVTT 00:01.680 --> 00:18.930 do 00:18.930 --> 00:21.560 the martian opposition of 2014 00:21.560 --> 00:26.509 welcome stargazers I'm James all very director the key cassava pop planetarium 00:26.509 --> 00:27.579 in Gainesville Florida 00:27.579 --> 00:30.869 and then Miley Hidalgo thanks teacher from Miami Florida 00:30.869 --> 00:34.260 and I'm demery guess astronomer from the Cincinnati Observatory 00:34.260 --> 00:37.550 we get to celebrate something really special next week 00:37.550 --> 00:40.930 that's right team the red planet Mars will be a opposition 00:40.930 --> 00:44.019 and when Mars is that opposition its closest to us 00:44.019 --> 00:48.370 and at its biggest and brightest when objects are closer in brighter 00:48.370 --> 00:52.850 this makes a much better for viewing so let's talk about the upcoming opposition 00:52.850 --> 00:53.489 at mars 00:53.489 --> 00:57.040 and why some oppositions are better than others let's show you 00:57.040 --> 01:01.100 Mars is fascinated astronomers for centuries 01:01.100 --> 01:05.729 even the sky watchers on the antiquity were mesmerized by the peculiar movement 01:05.729 --> 01:06.500 brightness 01:06.500 --> 01:10.340 and color changes of mars every twenty six months or so 01:10.340 --> 01:14.170 mars goes from a pale orange yellow to a bright or just read 01:14.170 --> 01:18.210 mars got its name because it's Brett Cullen reminded the ancient Romans a 01:18.210 --> 01:22.530 blood war and violence so they named after their got a poor 01:22.530 --> 01:25.820 the ancient Greeks gave the Red Planet the name pair ease 01:25.820 --> 01:29.450 the name the Greek god of war: and the Babylonians name that never call 01:29.450 --> 01:32.479 after their gotta pestilence and death so 01:32.479 --> 01:35.850 every twenty six months the break you know mars reminded people love the 01:35.850 --> 01:38.500 celestial connection with their God of War 01:38.500 --> 01:43.560 and they came to expect the unleashing a war revolutions disaster and debt 01:43.560 --> 01:47.740 even the symbol for Mars is the stylized Roman sword and shield 01:47.740 --> 01:51.070 but what if Mars change color size and brightness 01:51.070 --> 01:53.490 every twenty six months 01:53.490 --> 01:56.090 if we view our solar system from high above the Sun 01:56.090 --> 02:01.340 we can see the orbit support earth and Mars it takes a little more than 365 02:01.340 --> 02:02.500 days to orbit the Sun 02:02.500 --> 02:06.840 while Mars takes almost 687 days when my sister 02:06.840 --> 02:10.389 alright their closest to each other Mars's at to be at opposition 02:10.389 --> 02:13.440 when a plan is that opposition it's exactly on the 02:13.440 --> 02:17.500 opposite side at the sky from the Sun the tricky part about martian 02:17.500 --> 02:18.400 oppositions 02:18.400 --> 02:22.579 is that sometimes Mars is much closer at some oppositions then 02:22.579 --> 02:27.150 others for example the martian oppositional August 2003 was one of the 02:27.150 --> 02:28.190 closest ones 02:28.190 --> 02:33.060 ever work Earth and Mars were only 30 4.6 million miles apart 02:33.060 --> 02:36.510 compare that to the opposition March 02:36.510 --> 02:40.290 when Mars is a whopping 62.6 million miles from Earth 02:40.290 --> 02:44.910 the reason the mars is distance very so much is because in the shape of Mars is 02:44.910 --> 02:45.500 art 02:45.500 --> 02:49.980 Johannes Kepler demonstrated that planetary orbits are not perfect circles 02:49.980 --> 02:54.180 but a shape called inlets Mars orbit is more logical than Earth's 02:54.180 --> 02:57.760 so there are times when Mars is much closer to the Sun than others 02:57.760 --> 03:01.510 when a planet is at its closest to the Sun 03:01.510 --> 03:06.150 we call that Perry Helion the perihelion point for Mars lies in the constellation 03:06.150 --> 03:07.090 Aquarius 03:07.090 --> 03:10.820 the point when a plan is far this from the Sun is called at helium 03:10.820 --> 03:15.910 and from mars that point is in Leo the Lion perihelion actually in our 03:15.910 --> 03:19.100 opposite sides in the planet's orbit and as a result or on 03:19.100 --> 03:22.670 opposite sides the sky cell if you look at the zodiac 03:22.670 --> 03:26.260 what constellation is on the opposite side of the sky from Leo the Lion 03:26.260 --> 03:30.470 to its Aquarius cell if the Sun is a Leo 03:30.470 --> 03:33.880 and Mars in Aquarius you get a close and bright opposition 03:33.880 --> 03:37.120 but switch around and if the Sun is an Aquarius 03:37.120 --> 03:41.260 and Mars in Leo you get a distant and think opposition during the martian 03:41.260 --> 03:41.930 opposition 03:41.930 --> 03:44.970 1956 Mars was extremely close and bright 03:44.970 --> 03:49.280 this happened in September when the Sun was unreal and Marshalls an Aquarius 03:49.280 --> 03:53.570 the opposition 1877 when fogelson day most were discovered 03:53.570 --> 03:57.000 also happened in September and again marshals in aquaria 03:57.000 --> 04:00.959 on the other hand the martian opposition ups 1997 04:00.959 --> 04:04.950 wasn't very impressive happen in March when the Sun was an Aquarius 04:04.950 --> 04:08.580 and Mars in Leo same thing happen in March 2012 04:08.580 --> 04:11.769 things are getting better though next week on April 8 04:11.769 --> 04:15.540 Mars will be in Virgo and the Sun will be in Pisces they're both one 04:15.540 --> 04:17.039 consolation over so 04:17.039 --> 04:21.209 it's not quite as bad each time we go around the opposition's will get better 04:21.209 --> 04:21.950 and better 04:21.950 --> 04:25.360 then in late July 2018 will get the best view 04:25.360 --> 04:30.760 mars we've had since 2003 so check out march right after sunset next week as 04:30.760 --> 04:31.229 you 04:31.229 --> 04:52.050 keep looking up 04:52.050 --> 04:56.850 yes me 04:56.850 --> 05:01.850 T