test 1 Astronomy - May 2018 USA | Page 79

HOW TO USE THIS MAP: This map portrays the sky as seen near 30° south latitude. Located inside the border are the four directions: north, south, east, and west. To find stars, hold the map overhead and orient it so a direction label matches the direction you’re facing. The stars above the map’s horizon now match what’s in the sky. R U S 1 The Moon passes 5° north of Mars, 2h UT 16 The Moon passes 1.6° north of Venus, 4h UT 4 The Moon passes 3° south of Neptune, 0h UT 19 First Quarter Moon occurs at 19h52m UT 6 Last Quarter Moon occurs at 7h51m UT 20 Asteroid Thisbe is at opposition, 9h UT 7 The Moon passes 5° south of Uranus, 14h UT 9 Venus passes 1.1° north of Regulus, 20h UT 10 The Moon passes 1.1° north of Aldebaran, 10h UT 21 The Moon passes 4° north of Jupiter, 0h UT 25 The Moon passes 2° north of Saturn, 6h UT Mercury is stationary, 7h UT 27 Mars is at opposition, 5h UT 11 Jupiter is stationary, 4h UT The Moon is at apogee (406,223 kilometers from Earth), 5h44m UT 12 Mercury is at greatest eastern elongation (26°), 5h UT Full Moon occurs at 20h20m UT; total lunar eclipse Calendar of events Earth is at aphelion (152.1 million kilometers from the Sun), 17h UT G JULY 2018 E Pluto is at opposition, 10h UT The Moon is at perigee (357,431 kilometers from Earth), 8h25m UT 31 The Moon passes 3° south of Neptune, 6h UT Mars comes closest to Earth (57.6 million kilometers away), 8h UT 14 The Moon passes 2° north of Mercury, 22h UT 30 Southern Delta Aquariid meteor shower peaks 13 New Moon occurs at 2h48m UT; partial solar eclipse The Moon passes 7° north of Mars, 22h UT STAR COLORS: Stars’ true colors depend on surface temperature. Hot stars glow blue; slight- ly cooler ones, white; intermediate stars (like the Sun), yellow; followed by orange and, ulti mately, red. Fainter stars can’t excite our eyes’ color receptors, and so appear white without optical aid. LY RA _ ga Ve Illustrations by Astronomy: Roen Kelly BEGINNERS: WATCH A VIDEO ABOUT HOW TO READ A STAR CHART AT www.Astronomy.com/starchart.