1 00:00:06,769 --> 00:00:01,910 [Music] 2 00:00:09,230 --> 00:00:06,779 what's up for April Mercury Rising this 3 00:00:11,030 --> 00:00:09,240 month's moon and Planet pairings and the 4 00:00:13,129 --> 00:00:11,040 Lyrid meteor shower 5 00:00:15,770 --> 00:00:13,139 first up on April 11th the planet 6 00:00:17,450 --> 00:00:15,780 Mercury smallest and fastest moving of 7 00:00:19,550 --> 00:00:17,460 the planets in our solar system will 8 00:00:21,290 --> 00:00:19,560 reach its highest and most visible in 9 00:00:23,450 --> 00:00:21,300 the evening sky for the year 10 00:00:25,730 --> 00:00:23,460 Mercury is only visible in the sky for a 11 00:00:27,410 --> 00:00:25,740 few weeks every three to four months the 12 00:00:29,330 --> 00:00:27,420 rest of the time it's too close to the 13 00:00:32,030 --> 00:00:29,340 Sun in the sky and is lost in its bright 14 00:00:34,010 --> 00:00:32,040 glare and since the planet orbits so 15 00:00:36,170 --> 00:00:34,020 close to the sun it's always near the 16 00:00:37,970 --> 00:00:36,180 Sun in the sky appearing low near the 17 00:00:40,069 --> 00:00:37,980 Horizon for no more than an hour or two 18 00:00:41,150 --> 00:00:40,079 either following sunset or preceding 19 00:00:43,310 --> 00:00:41,160 sunrise 20 00:00:45,650 --> 00:00:43,320 some of Mercury's fleeting appearances 21 00:00:47,690 --> 00:00:45,660 known as apparitions are better for 22 00:00:49,310 --> 00:00:47,700 observing than others for a combination 23 00:00:51,049 --> 00:00:49,320 of reasons that have to do with how our 24 00:00:52,970 --> 00:00:51,059 view of the solar system changes with 25 00:00:54,889 --> 00:00:52,980 the seasons what hemisphere you're in 26 00:00:56,569 --> 00:00:54,899 and what phase the planet happens to be 27 00:00:58,189 --> 00:00:56,579 showing us at the time 28 00:01:00,590 --> 00:00:58,199 for this Apparition in the northern 29 00:01:02,569 --> 00:01:00,600 hemisphere the best viewing is April 3rd 30 00:01:05,210 --> 00:01:02,579 through the 11th as the planet appears 31 00:01:07,010 --> 00:01:05,220 higher in the sky each evening it 32 00:01:09,530 --> 00:01:07,020 quickly fades in brightness after that 33 00:01:12,649 --> 00:01:09,540 as the phase it shows us becomes an 34 00:01:15,109 --> 00:01:12,659 increasingly Slimmer Crescent also on 35 00:01:17,330 --> 00:01:15,119 April 11th you'll find the planet Venus 36 00:01:19,490 --> 00:01:17,340 right next to the Pleiades star cluster 37 00:01:20,810 --> 00:01:19,500 the two will be close enough to appear 38 00:01:22,070 --> 00:01:20,820 in the same field of view through 39 00:01:24,289 --> 00:01:22,080 binoculars 40 00:01:26,870 --> 00:01:24,299 this pairing makes for a fun reminder 41 00:01:28,969 --> 00:01:26,880 that the night sky is kind of like a 42 00:01:31,310 --> 00:01:28,979 time machine the farther out in space 43 00:01:32,450 --> 00:01:31,320 you look the farther back in time you're 44 00:01:37,069 --> 00:01:32,460 seeing 45 00:01:39,289 --> 00:01:37,079 left Venus about nine minutes earlier 46 00:01:44,210 --> 00:01:39,299 whereas the light of the Pleiades left 47 00:01:48,050 --> 00:01:46,490 the latter half of April includes some 48 00:01:49,789 --> 00:01:48,060 awesome close approaches of the Moon 49 00:01:50,450 --> 00:01:49,799 with three of the bright planets in the 50 00:01:53,090 --> 00:01:50,460 sky 51 00:01:55,730 --> 00:01:53,100 on April 15th and 16th you'll find the 52 00:01:57,770 --> 00:01:55,740 Crescent Moon Rising with Saturn find 53 00:01:59,870 --> 00:01:57,780 them low in the Southeastern sky in the 54 00:02:02,510 --> 00:01:59,880 couple of hours before sunrise 55 00:02:04,670 --> 00:02:02,520 then on the evening of the 23rd find the 56 00:02:06,709 --> 00:02:04,680 slim Crescent Moon hanging just five 57 00:02:10,430 --> 00:02:06,719 degrees above Venus in the West after 58 00:02:12,710 --> 00:02:10,440 sunset and on April 25th the moon Finds 59 00:02:14,089 --> 00:02:12,720 Its way over to Mars high up in the West 60 00:02:16,910 --> 00:02:14,099 after dark 61 00:02:19,070 --> 00:02:16,920 at this time around the 26th and 27th 62 00:02:21,650 --> 00:02:19,080 the moon will be at its first quarter 63 00:02:24,050 --> 00:02:21,660 phase meaning it appears as a half moon 64 00:02:25,910 --> 00:02:24,060 high in the sky after dark 65 00:02:27,830 --> 00:02:25,920 the first quarter moon is a great time 66 00:02:29,809 --> 00:02:27,840 to pull out your binoculars or telescope 67 00:02:31,550 --> 00:02:29,819 if you have them as it's an ideal time 68 00:02:33,530 --> 00:02:31,560 to observe the moon's craters and 69 00:02:35,510 --> 00:02:33,540 mountains along the Terminator the day 70 00:02:37,670 --> 00:02:35,520 night boundary with ease 71 00:02:39,229 --> 00:02:37,680 lots of astronomy clubs planned public 72 00:02:41,030 --> 00:02:39,239 observing nights around this time as 73 00:02:44,750 --> 00:02:41,040 well and you can look for events in your 74 00:02:47,330 --> 00:02:44,760 area with NASA's night sky Network 75 00:02:49,790 --> 00:02:47,340 April brings the annual Lyrid meteor 76 00:02:51,650 --> 00:02:49,800 shower it's a medium strength shower 77 00:02:54,050 --> 00:02:51,660 that can produce up to 20 meteors per 78 00:02:56,449 --> 00:02:54,060 hour at its peak under ideal conditions 79 00:02:59,150 --> 00:02:56,459 the Lyrids Peak this year in the 80 00:03:00,830 --> 00:02:59,160 pre-dawn hours of April 23rd though you 81 00:03:02,570 --> 00:03:00,840 should see a few shooting stars on the 82 00:03:05,030 --> 00:03:02,580 morning before and after the peak as 83 00:03:07,070 --> 00:03:05,040 well fortunately the peak Falls just a 84 00:03:09,050 --> 00:03:07,080 couple of days after the new moon that 85 00:03:11,030 --> 00:03:09,060 means the moon won't interfere with this 86 00:03:13,250 --> 00:03:11,040 year's lyrics overwhelming fainter 87 00:03:14,930 --> 00:03:13,260 meteors in the glow of moonlight 88 00:03:17,149 --> 00:03:14,940 the Lyrids are named for the 89 00:03:18,830 --> 00:03:17,159 constellation Lyra which is near the 90 00:03:22,070 --> 00:03:18,840 point in the sky where their meteors 91 00:03:24,170 --> 00:03:22,080 appear to come from called the radiant 92 00:03:26,210 --> 00:03:24,180 they're one of the oldest known meteor 93 00:03:29,509 --> 00:03:26,220 showers with the first recorded sighting 94 00:03:31,790 --> 00:03:29,519 in China some 2700 years ago they 95 00:03:35,089 --> 00:03:31,800 originate as dust particles from a comet 96 00:03:37,729 --> 00:03:35,099 during its 400 year orbit around the sun 97 00:03:40,190 --> 00:03:37,739 the lyrics tend to produce fast-moving 98 00:03:41,690 --> 00:03:40,200 meteors that lack persistent Trails but 99 00:03:44,210 --> 00:03:41,700 they can also produce the occasional 100 00:03:46,610 --> 00:03:44,220 bright meteor called a fireball 101 00:03:48,890 --> 00:03:46,620 to observe them find a comfortable spot 102 00:03:51,830 --> 00:03:48,900 away from Bright City Lights get 103 00:03:53,990 --> 00:03:51,840 horizontal and look straight up you'll 104 00:03:56,149 --> 00:03:54,000 see the most meteors by looking slightly 105 00:03:58,729 --> 00:03:56,159 away from the origin point which is near 106 00:04:00,710 --> 00:03:58,739 the bright star Vega so here's wishing 107 00:04:02,809 --> 00:04:00,720 you clear skies to catch a few Shooting 108 00:04:04,789 --> 00:04:02,819 Stars One April morning when the 109 00:04:09,350 --> 00:04:04,799 forecast calls for light showers of 110 00:04:11,330 --> 00:04:09,360 comet dust with a Chance of fireballs 111 00:04:13,070 --> 00:04:11,340 here are the phases of the moon for 112 00:04:15,170 --> 00:04:13,080 April 113 00:04:17,270 --> 00:04:15,180 stay up to date with all of NASA's 114 00:04:20,689 --> 00:04:17,280 missions to explore the solar system and 115 00:04:22,550 --> 00:04:20,699 Beyond at nasa.gov I'm Preston Dykes 116 00:04:26,090 --> 00:04:22,560 from NASA's jet propulsion laboratory