• Spectacular Images of Deep Space Objects

• Spectacular images of deep space objects • Celestial viewing opportunities and historical events • All major holidays and many other observances • Observing the Full Moon

The Monkey Head Nebula Star-forming Regions NGC 3576 Planetary Nebula Abell 33 (NGC 2174) and NGC 3603

Spiral Galaxy M106 Galaxy Cluster MACS Saturn J0454.1–0300

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Saturn NASA/JPL-Caltech/SSI

Mercury is visible in morning twilight, early and midmonth. Venus is not visible this month. Mars crosses meridian at 11 p.m., sets at 4 a.m. Jupiter sets at 1 a.m. Saturn June Supernova Remnant Kes 73 Spiral Galaxy ESO 137-001 Star Cluster NGC 3532 is visible all night. (All times are local daylight time for an Saturday observer at 40° north latitude at midmonth.) Friday This is how Saturn and its mag- Thursday Wednesday nificent rings look from approxi- Tuesday New Moon Monday 00:00 x.m. mately 750,000 miles away. If it Sunday 3 4 appears a bit unfamiliar, blame 2 the perspective — the Cassini JULY 1 Saturn at opposition spacecraft took this image as it MAY S T W T F S S M T W T F 2 Mercury 0.7° north of Moon, S M 1 occultation passed on the far side of Saturn 6 7 2 3 4 5 7 8 9 1 3 4 5 6 Moon at perigee and the planet’s disk blocked the 11 12 13 14 16 8 9 10 12 13 14 15 Sun. The NASA probe has been 21 10 11 200-inch Hale Telescope 17 18 19 20 22 23 15 16 18 19 20 21 dedicated, 1948 27 28 17 studying this world, its five dozen 23 24 25 26 28 29 30 22 24 25 26 27 Edward White, first American New Moon, 11:00 p.m. moons, and its complex ring sys- 30 31 space walk, 1965 29 31 tem since entering orbit around Uranus 2° north of Moon Saturn in 2004. 11 The outermost ring visible 9 10 here is the diffuse E ring. This 8 ring’s core lies about 150,000 6 7 miles from the planet, so it 5 could fit comfortably within the Moon’s orbit around Earth. The ice particles that make up the E Jupiter 1.5° north of Moon ring originate in geysers erupting from the moon Enceladus, which Variable Star RS Puppis Globular Star Cluster M15 Star-forming Regions NGC 2014 Giovanni Cassini born, 1625 appears as a bright dot inside the Venus in superior and NGC 2020 Mercury at greatest western conjunction 18 ring on the image’s left side. The elongation (24°) 17 brownish rings closer to Saturn 15 16 are the ones that show up clearly First Qtr 14 from Earth. And speaking of our 00:00 x.m. 13 12 home planet, it appears as a pale Pallas stationary blue dot interior to the E ring at Saturn 3° south of Moon about the 4 o’clock position. Sally Ride, first American Cassini captured this natural- woman in space, 1983 Valentina Tereshkova, first Mars 7° south of Moon color portrait July 19, 2013. The Flag Day woman in space, 1963 ISBN 978-1-62700-196-0 68179 U.S. $12.99 Moon at apogee spacecraft snapped 323 images Pioneer 10 leaves solar Neptune stationary in a little more than four hours system, 1983 25 First Quarter Moon, 4:10 a.m. 24 through red, green, and blue © 2015 23 filters. Imaging scientists then 51299 Full Moon 22 Kalmbach Publishing Co. 00:00 x.m. 21 combined 141 of these snap- 19 20 shots to create the mosaic. For observers who would like Waukesha, Wisconsin Juno stationary to see Saturn from the opposite Royal Greenwich Neptune 1.2° south of Moon, side, this month offers the year’s 9 781627 001960 0 64465 18179 7 Observatory founded, 1675 occultation best looks. The planet reaches James Christy discovers opposition and peak visibility Charon, moon of Pluto, 1978 www.Astronomy.com Father’s Day Full Moon, 7:02 a.m. the night of June 2/3, when the Mercury 4° north of Summer Solstice, 6:34 p.m. Aldebaran planet shines at magnitude 0.0 Printed in China 30 among the background stars of Last Qtr 29 26 27 00:00 x.m. 28 Ophiuchus.

Mars stationary Tunguska impact, 1908 Cassini spacecraft arrives at George Ellery Hale born, Saturn, 2004 1868 Uranus 3° north of Moon Last Quarter Moon, 2:19 p.m. Charles Messier born, 1730