1 00:00:14,959 --> 00:00:10,930 your guide to constellations deep-sky 2 00:00:39,420 --> 00:00:14,969 objects planets and events tonight's sky 3 00:00:45,930 --> 00:00:43,350 as the sky grows dark this month turn 4 00:00:55,229 --> 00:00:45,940 your gaze to the southwest to find 5 00:01:11,940 --> 00:00:55,239 Saturn a telescope reveals the planets 6 00:01:22,029 --> 00:01:15,700 stargazing on a hot August night reveals 7 00:01:25,499 --> 00:01:22,039 a multitude of wonders Laira the small 8 00:01:29,830 --> 00:01:25,509 harp lies high in the late evening sky 9 00:01:33,039 --> 00:01:29,840 its main star is the great Vega one of 10 00:01:36,459 --> 00:01:33,049 the brightest in the sky look for lehre 11 00:01:40,120 --> 00:01:36,469 by locating Vega and then the 12 00:01:42,999 --> 00:01:40,130 parallelogram of stars nearby epsilon 13 00:01:46,359 --> 00:01:43,009 Larry the bright star near Vega is 14 00:01:54,880 --> 00:01:46,369 actually a wonderful quadruple star 15 00:01:58,270 --> 00:01:54,890 system known as the double-double in the 16 00:02:02,350 --> 00:01:58,280 parallelogram of Lyra lies the dramatic 17 00:02:06,069 --> 00:02:02,360 ring nebula it is an expanding shell of 18 00:02:14,500 --> 00:02:06,079 glowing gas expelled by the dying star 19 00:02:21,839 --> 00:02:18,300 the great constellation Cygnus the Swan 20 00:02:25,089 --> 00:02:21,849 flies high through the August night 21 00:02:28,710 --> 00:02:25,099 using bright Vega as your guide star 22 00:02:32,140 --> 00:02:28,720 look for the cross just to the east 23 00:02:36,460 --> 00:02:32,150 Cygnus is also known as the northern 24 00:02:40,589 --> 00:02:36,470 cross Albireo at the head of the Swan is 25 00:02:43,330 --> 00:02:40,599 a showpiece for small telescopes this 26 00:02:46,059 --> 00:02:43,340 spectacular pair of stars features 27 00:02:51,390 --> 00:02:46,069 contrasting colors of sapphire and 28 00:02:55,690 --> 00:02:51,400 golden topaz Deneb the Swans tail is a 29 00:02:58,569 --> 00:02:55,700 supergiant star if Deneb replaced the 30 00:03:02,580 --> 00:02:58,579 Sun in the center of our solar system it 31 00:03:06,910 --> 00:03:02,590 would engulf Mercury and Venus on a 32 00:03:10,089 --> 00:03:06,920 clear night hazy patches of nebulae can 33 00:03:15,069 --> 00:03:10,099 be seen by casually panning across the 34 00:03:18,309 --> 00:03:15,079 Cygnus area with binoculars the most 35 00:03:21,670 --> 00:03:18,319 prominent is the North America nebula an 36 00:03:29,890 --> 00:03:21,680 area of gas and dust illuminated by the 37 00:03:33,670 --> 00:03:29,900 nearby brilliant star Deneb Cygnus also 38 00:03:40,809 --> 00:03:33,680 hosts several clusters of stars the 39 00:03:43,240 --> 00:03:40,819 easiest to find our m-29 & M 39 m 29 is 40 00:03:46,449 --> 00:03:43,250 found near the center of the northern 41 00:03:51,339 --> 00:03:46,459 cross when viewed in a small telescope 42 00:03:55,270 --> 00:03:51,349 it resembles a small square best seen in 43 00:03:58,930 --> 00:03:55,280 binoculars m39 is a loosely bound 44 00:04:04,660 --> 00:03:58,940 cluster of about thirty stars just to 45 00:04:11,500 --> 00:04:08,020 just south of Cygnus lies the small 46 00:04:14,589 --> 00:04:11,510 constellation vulpecula the little fox 47 00:04:21,400 --> 00:04:14,599 first charted by polish astronomer 48 00:04:27,890 --> 00:04:24,800 vulpecula hosts the dumbbell nebula 49 00:04:31,879 --> 00:04:27,900 which can be seen as a faint smudge in 50 00:04:53,910 --> 00:04:31,889 binoculars a small telescope reveals its 51 00:05:02,970 --> 00:04:57,130 aquila the eagle was known to the 52 00:05:22,550 --> 00:05:06,580 Altair the brightest star in Aquila is 53 00:05:30,840 --> 00:05:25,890 the bright stars of the summer night sky 54 00:05:40,050 --> 00:05:30,850 Vega Altair and Deneb make up the summer 55 00:05:45,870 --> 00:05:42,659 use binoculars to look for the coat 56 00:05:51,150 --> 00:05:45,880 hanger located halfway between Altair 57 00:05:54,150 --> 00:05:51,160 and Albireo this remarkable little group 58 00:06:04,810 --> 00:05:54,160 of stars forms a familiar pattern from 59 00:06:04,820 --> 00:06:10,519 you 60 00:06:16,159 --> 00:06:13,609 during the second half of august faint 61 00:06:22,299 --> 00:06:16,169 mars makes an appearance above the 62 00:06:34,099 --> 00:06:25,549 venus joins mars in the morning sky 63 00:06:36,499 --> 00:06:34,109 during the final days of the month try 64 00:06:55,399 --> 00:06:36,509 to spot the planets before the sky 65 00:06:58,279 --> 00:06:55,409 brightens the perseid meteor shower is 66 00:07:05,029 --> 00:06:58,289 an always anticipated feature of the 67 00:07:06,889 --> 00:07:05,039 August night sky look for meteors during 68 00:07:12,289 --> 00:07:06,899 the early morning hours of August 69 00:07:15,499 --> 00:07:12,299 twelfth and thirteenth these streaks of 70 00:07:18,769 --> 00:07:15,509 light are tiny bits of a comet burning 71 00:07:21,289 --> 00:07:18,779 up as they enter Earth's atmosphere the 72 00:07:24,379 --> 00:07:21,299 cometary debris trail which Earth passes 73 00:07:27,169 --> 00:07:24,389 through once a year was left behind by 74 00:07:34,740 --> 00:07:27,179 comet swift-tuttle during its many 75 00:07:41,760 --> 00:07:38,340 the night sky is always a celestial