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Contents 2 Jan Sky Guide 2019• BY MARTIN RATCLIFFE AND RICHARD TALCOTT • contents 2 Jan. 2019 Totality comes to America 3 Feb. 2019 Venus meets the ringed planet 4 March 2019 Mars passes the Seven Sisters 5 April 2019 Pallas steers through the Herdsman 6 May 2019 Dark skies for spring meteors 7 June 2019 Jupiter tangles with the Serpent-bearer 8 July 2019 The ringed planet bows to the Archer The longest eclipse of the 21st century delivered spectacular views 9 Aug. 2019 Spot elusive Mercury at dawn July 27, 2018. A similar scene awaits American viewers the night of January 20/21. BOTH PHOTOS: ANTHONY AYIOMAMITIS 10 Sept. 2019 Pouring water on an ice giant 11 Oct. 2019 Spy Uranus on a cool autumn night 12 Nov. 2019 Mercury transits the Sun Martin Ratcliffe provides professional planetarium development for Sky-Skan, Inc. Richard Talcott is a senior editor of Astronomy. 13 Dec. 2019 A blazing ring of fire 14 2020 preview Looking ahead to next year . A supplement to Astronomy magazine 618372 2019 Jan S M T W T F S Totality comes 1 2 3 4 6 7 8 9 10 11 12 13 15 16 17 18 19 to America 20 22 23 24 25 26 28 29 30 31 his year gets off to a great start with a total eclipse of the Moon visible in 1 The Moon passes its entirety across 1.3° north of Venus, North and South America. For 5 P.M. EST T more than an hour the night of 2 Saturn is in con- junction with the January 20/21, the colors from Sun, 1 A.M. EST all Earth’s sunrises and sunsets 3 The Moon passes bathe the Full Moon in an 3° north of Jupiter, ethereal orange glow. 3 A.M. EST As sunlight passes through Quadrantid meteor Earth’s atmosphere, our blan- shower peaks ket of air strips out the short- Partial solar eclipse, wavelength blues and yellows 5 Few celestial sights are more dramatic than a total lunar eclipse. Here, the 8 P.M. EST and leaves only the longer- city of Cologne, Germany, and its iconic cathedral provide a spectacular Venus is at greatest wavelength oranges and reds. foreground for the July 27, 2018, event. DONG HAN western elongation It is this light that reaches the (47°), midnight EST Moon a quarter of a million The eclipse begins unno- but as more of the Moon sinks 10 The Moon passes 3° miles farther out in space. It’s as ticeably when the Moon enters into the shadow, its orange south of Neptune, 5 P.M. EST if a talented artist has brushed Earth’s outer penumbral color becomes noticeable. the Moon with the warmer shadow at 9:37 p.m. EST. Over As the eclipse progresses 11 Pluto is in conjunc- tion with the Sun, colors from her palette. the next hour, the Moon’s over the next hour, the Moon 7 A.M. EST On the evening of January lower limb begins to darken. slowly dims and the back- 12 The Moon passes 20, the Full Moon rises as the The effect should be obvious ground sky blackens, slowly 5° south of Mars, Sun sets. Its brilliant glow by 10 p.m. revealing a star-studded sky. 3 P.M. EST hides fainter stars. Only the The main partial eclipse Hanging in place of the once 14 The Moon passes bright constellations of winter begins when our satellite dips brilliant Full Moon is a stun- 5° south of Uranus, — Orion, Taurus, Gemini, and into the inner umbral shadow ning orange globe situated 7 A.M. EST Canis Major — stand out in at 10:34 p.m. The shadow near the border between 15 Venus passes 8° the southern sky. appears dusky gray at first, Cancer and Gemini. north of Antares, 4 P.M. EST Totality starts at 11:41 p.m., N when the Moon stands about 20 Total lunar eclipse, midnight EST Penumbral 60° high across the central eclipse begins United States. (It’s a bit higher Venus passes 2° Totality begins 22 Penumbral Totality ends 9:37 P.M. EST 11:41 P.M. EST in the east and lower in the north of Jupiter, eclipse ends 12:43 A.M. EST 1 A.M. EST 2:48 A.M. EST west.) The fainter stars of 29 Mercury is in supe- the winter constellations and rior conjunction, the Milky Way now fill the 10 P.M. EST E Partial darkened sky. To get the full 30 The Moon passes Greatest eclipse eclipse begins impact, you’ll want to view the Partial 12:12 A.M. EST 3° north of Jupiter, eclipse ends 10:34 P.M. EST eclipse from under a dark sky. 7 P.M. EST 1:51 A.M. EST Umbra Totality lasts 62 minutes, 31 The Moon passes wrapping up at 12:43 a.m. The 0.09° north of Venus, 1 P.M. EST Penumbra partial phases then play out in reverse. The umbral eclipse ends at 1:51 a.m., and the Sixty-two breathtakingASY-PB-618372_20 minutes of totality highlight the five-hour total Moon exits the penumbra lunar eclipse the night of January 20/21. ALL ILLUSTRATIONS: ASTRONOMY: ROEN KELLY unnoticeably at 2:48 a.m. 2 Sky Guide 2019 2019 Feb Venus meets S M T W T F S 1 2 3 5 6 7 8 9 the ringed planet 10 11 13 14 15 16 17 18 20 21 22 23 24 25 27 28 enus puts on a wonderful show in February’s predawn sky. Not only does 2 The Moon passes 0.6° north of Saturn, the brilliant planet cross the V 2 A.M. EST richest parts of the Milky Way The Moon passes in Sagittarius, but it also joins 0.6° north of Pluto, Saturn for a lovely conjunc- 3 P.M. EST tion after midmonth. 7 The Moon passes 3° Yet these highlights repre- south of Neptune, sent just a small part of what 1 A.M. EST Venus offers during 2019. 10 The Moon passes As the New Year opens, the 6° south of Mars, planet rises nearly four hours Venus (center) was in conjunction with Saturn in early January 2016. 11 A.M. EST A waning crescent Moon looked down on the planetary pair. ALAN DYER before the Sun. Shining at The Moon passes 5° south of Uranus, magnitude –4.6, Venus would 3 P.M. EST dominate the morning sky if OPHIUCHUS 13 Mars passes 1.1° not for the presence of a cres- north of Uranus, cent Moon some 5° above it. AQUILA 3 P.M. EST The inner world reaches great- Jupiter Antares 18 Venus passes 1.1° est elongation January 5, when north of Saturn, it lies 47° west of the Sun and 9 A.M. EST appears about 20° high in the Venus 26 Mercury is at southeast as twilight begins. greatest eastern 10° elongation (18°), Venus passes from Libra Saturn SAGITTARIUS 8 P.M. EST through Scorpius and into SCORPIUS 27 The Moon passes Ophiuchus during January. 2° north of Jupiter, This eastward movement car- 9 A.M. EST ries it 2° north of Jupiter on February 18, 45 minutes before sunrise Looking southeast the 22nd. Venus then shines at magnitude –4.4, some 10 times Watch for Venus and ASY-PB-618372_21Saturn to pass just 1.1° from each other against the brighter than magnitude –1.8 backdrop of Sagittarius before dawn February 18. Jupiter. On the month’s final Moon Phases morning, a waning crescent Follow the planet each 18th, Venus appears 1.1° due Moon stands 2° from Venus. morning over the next two north of Saturn. The inner First Quarter The dazzling planet crosses weeks. While Saturn waits planet then shines at magnitude Full Moon into Sagittarius on February 1, patiently in eastern –4.2, nearly 100 times brighter setting up an impressive series Sagittarius, Venus moves than the magnitude 0.6 outer Last Quarter of close encounters with the steadily toward it. On world. Grab a telescope and New Moon Archer’s deep-sky wonders. February 10, Venus slides 2° your lowest-power eyepiece Binoculars will deliver the best south of open cluster M25; to compare the planets in Events that can be viewed views of the planet’s progress. the following morning, the one field. Venus displays a daz- with the naked eye On the morning of February 4, planet passes 3° north of zlingly white disk that spans 17" Events that can be viewed Venus stands 2° north of the globular cluster M22. and appears about two-thirds with binoculars Trifid Nebula (M20) and the But the highlight of lit. Saturn shows a yellowish Events that can be viewed adjacent open star cluster February has to be the con- disk measuring 15" across with a telescope M21, with the Lagoon Nebula junction between Venus and surrounded by a dramatic (M8) just over 1° farther south. Saturn. Before dawn on the ring system that spans 35". www.Astronomy.com 3 2019 March S M T W T F S Mars passes 1 2 3 4 5 7 8 9 10 11 12 13 15 16 the Seven Sisters 17 18 19 21 22 23 24 25 26 27 29 30 ate March sees the passing 3° south of it on the 31 bright planet Mars 29th and 30th. entering Taurus the The contrast between Bull and passing orange-colored Mars and the 1 The Moon passes near the beautiful blue-white stars of the Pleiades 0.3° north of Saturn, Pleiades star cluster (M45), shows up particularly well in 1 P.M.
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