1 00:00:05,250 --> 00:00:01,639 [Music] 2 00:00:08,850 --> 00:00:05,260 what's up for February the best time to 3 00:00:12,029 --> 00:00:08,860 spot Mercury Mars disappears and what's 4 00:00:14,400 --> 00:00:12,039 going on with Betelgeuse the first week 5 00:00:17,130 --> 00:00:14,410 or so of February is a good time to try 6 00:00:18,660 --> 00:00:17,140 and spot the planet Mercury the 7 00:00:20,730 --> 00:00:18,670 innermost planet will be at its highest 8 00:00:22,249 --> 00:00:20,740 elevation above the horizon for the year 9 00:00:25,050 --> 00:00:22,259 for viewers in the northern hemisphere 10 00:00:27,419 --> 00:00:25,060 look very low in the West about half an 11 00:00:28,769 --> 00:00:27,429 hour after sunset the best viewing is at 12 00:00:31,019 --> 00:00:28,779 the end of the first week around 13 00:00:33,930 --> 00:00:31,029 February 6th and 7th when the planet 14 00:00:36,420 --> 00:00:33,940 will be at its brightest on the morning 15 00:00:39,119 --> 00:00:36,430 of February 18th sky watchers in North 16 00:00:41,520 --> 00:00:39,129 America can watch as Mars disappears 17 00:00:44,189 --> 00:00:41,530 behind the moon for about an hour in an 18 00:00:46,170 --> 00:00:44,199 event called an occultation moon mars 19 00:00:48,240 --> 00:00:46,180 occultation czar visible from somewhere 20 00:00:49,889 --> 00:00:48,250 on earth about twice per year but like 21 00:00:51,689 --> 00:00:49,899 eclipses you have to be in the right 22 00:00:53,610 --> 00:00:51,699 place at the right time to catch them 23 00:00:55,830 --> 00:00:53,620 the pair have to be high enough in the 24 00:00:57,599 --> 00:00:55,840 sky to be easily seen and if it's after 25 00:01:00,119 --> 00:00:57,609 sunrise where you are you'll need a 26 00:01:02,279 --> 00:01:00,129 telescope for viewers in the Eastern 27 00:01:04,590 --> 00:01:02,289 time zone the occultation begins soon 28 00:01:06,359 --> 00:01:04,600 after local sunrise but you may be able 29 00:01:08,160 --> 00:01:06,369 to see Mars disappearing behind the moon 30 00:01:10,230 --> 00:01:08,170 with a telescope or good binoculars and 31 00:01:12,690 --> 00:01:10,240 it's still worth looking just before 32 00:01:15,210 --> 00:01:12,700 dawn to see Mars extremely close to the 33 00:01:16,499 --> 00:01:15,220 crescent moon observers in the central 34 00:01:17,940 --> 00:01:16,509 time zone will be able to watch the 35 00:01:20,219 --> 00:01:17,950 beginning of the occultation in the 36 00:01:22,469 --> 00:01:20,229 pre-dawn sky as Mars slips behind the 37 00:01:25,109 --> 00:01:22,479 moon the end of the occultation takes 38 00:01:26,880 --> 00:01:25,119 place after sunrise for you the Mountain 39 00:01:28,560 --> 00:01:26,890 Time Zone has the best viewing as both 40 00:01:30,330 --> 00:01:28,570 the beginning and end of the occultation 41 00:01:32,580 --> 00:01:30,340 take place in your sky before dawn 42 00:01:35,039 --> 00:01:32,590 although the pair will be close to the 43 00:01:36,810 --> 00:01:35,049 horizon at the start of the event and in 44 00:01:38,819 --> 00:01:36,820 the Pacific time zone you'll be able to 45 00:01:40,469 --> 00:01:38,829 see the end of the occultation as Mars 46 00:01:42,359 --> 00:01:40,479 pops back into view from behind the 47 00:01:44,429 --> 00:01:42,369 moon's dark side you'll just need a 48 00:01:47,789 --> 00:01:44,439 clear view low in the southeast sky to 49 00:01:49,440 --> 00:01:47,799 see it finally this month there's been 50 00:01:52,050 --> 00:01:49,450 lots of interest lately in the left 51 00:01:54,090 --> 00:01:52,060 shoulder of Orion specifically the 52 00:01:57,480 --> 00:01:54,100 bright red giant star known as 53 00:01:58,980 --> 00:01:57,490 Betelgeuse in late 2019 Betelgeuse which 54 00:01:59,730 --> 00:01:58,990 is normally one of the brightest stars 55 00:02:02,550 --> 00:01:59,740 in the sky 56 00:02:04,200 --> 00:02:02,560 dimmed quite a bit since this massive 57 00:02:05,819 --> 00:02:04,210 star is known to be of the type that 58 00:02:08,610 --> 00:02:05,829 eventually ends its life in a supernova 59 00:02:10,200 --> 00:02:08,620 explosion many folks have wondered if 60 00:02:12,199 --> 00:02:10,210 the recent dimming is a warning that 61 00:02:14,959 --> 00:02:12,209 Betelgeuse is about to blow 62 00:02:15,440 --> 00:02:14,969 well astronomers say don't hold your 63 00:02:17,630 --> 00:02:15,450 breath 64 00:02:19,459 --> 00:02:17,640 although it could explode tomorrow 65 00:02:21,470 --> 00:02:19,469 astronomers think it's more likely to 66 00:02:23,000 --> 00:02:21,480 happen on a longer timeline probably 67 00:02:25,009 --> 00:02:23,010 more like a hundred thousand years from 68 00:02:26,259 --> 00:02:25,019 now and it's unlikely to signal its 69 00:02:28,429 --> 00:02:26,269 demise in advance 70 00:02:30,289 --> 00:02:28,439 fortunately Betelgeuse is far enough 71 00:02:32,119 --> 00:02:30,299 away that when it does go supernova 72 00:02:34,309 --> 00:02:32,129 we won't experience any negative effects 73 00:02:36,940 --> 00:02:34,319 from it like radiation but it will be 74 00:02:39,199 --> 00:02:36,950 quite brilliant in the skies for weeks 75 00:02:44,000 --> 00:02:39,209 here are the phases of the Moon for 76 00:02:45,770 --> 00:02:44,010 February you can catch up on all of 77 00:02:48,559 --> 00:02:45,780 NASA's current and future missions at 78 00:02:50,089 --> 00:02:48,569 nasa.gov I'm Preston dykes from NASA's 79 00:02:51,230 --> 00:02:50,099 Jet Propulsion Laboratory and that's 80 00:02:58,880 --> 00:02:51,240 what's up for this month