Sky & Telescope - May 2019 - 2

CONTENTS

THE ESSENTIAL GUIDE TO ASTRONOMY

May 2019

VOL. 137, NO. 5

FEATURES

Cover Story:
14 JunoCam at Jupiter:
Where Science Meets Art
Amateur processing has revealed
this fantastic world from a unique
perspective.
By Candice Hansen-Koharcheck

Follow the author on a celestial tour
of some of his favorite binary pairs.
By Phillip Kane

22
OBSERVING

S&T TEST REPORT

41 May's Sky at a Glance

28 A Relatively
Important Eclipse
A century ago an eclipse revealed
to the world that the universe bends
to Einstein's whim.
By Benjamin Skuse

34 The Allure of Betelgeuse
Astronomers are itching to know
when this red supergiant will go
supernova, but a clear answer eludes
them. By Peter Tyson

64 Insect Eyes on
the Deep Sky
A team of astronomers uses an
innovative approach to create
the world's fastest telescope system.
By Richard S. Wright, Jr.

Lunar Almanac & Sky Chart

43 Binocular Highlight
By Mathew Wedel
44 Planetary Almanac

NASA / MSSS / DAVID MARRIOT T

Spectrum
By Peter Tyson

From Our Readers

45 Under the Stars
By Fred Schaaf

75, 50 & 25 Years Ago
By Roger W. Sinnott

46 Sun, Moon & Planets
By Fred Schaaf

8 News Notes

Celestial Calendar
By S. N. Johnson-Roehr

12 Cosmic Relief
By David Grinspoon

52 Exploring the Solar System
By Richard Jakiel

70 Astronomer's Workbench
By Jerry Oltion

54 Deep-Sky Wonders
By Sue French

Gallery

83 Event Calendar
84 Focal Point
By Francine Jackson

ONLINE

ASTRONOMY EVENTS
Add your upcoming exhibit, star
party, or other outreach event to our
events calendar.
skyandtelescope.com/
astronomy-events
Jupiter's southern
hemisphere delights
with exotic storms.

COLUMNS / DEPARTMENTS

57 Going Deep
By Steve Gottlieb

Find us on
Facebook & Twitter

ON THE COVER

60 Omegon Mini Track LX2
By Alan Dyer

ONLINE STORE
Shop our online store for Moon and
planet globes, sky atlases, webinars, and more, all made or chosen
by the staff of Sky & Telescope.
shopatsky.com

SKY AT A GLANCE
Our popular column highlights celestial delights for the upcoming week.
Also available as an app - with sky
charts included!
skyandtelescope.com/ataglance

SKY & TELESCOPE (ISSN 0037-6604) is published monthly by Sky & Telescope, a division of F+W Media, Inc., 90 Sherman St., Cambridge, MA 02140-3264, USA. Phone: 800-2530245 (customer service/subscriptions), 617-864-7360 (all other calls). Fax: 617-864-6117. Website: skyandtelescope.com. Store website: shopatsky.com. ©2019 F+W Media, Inc.
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22 Binary Orbits Explored

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Sky & Telescope - May 2019

Table of Contents for the Digital Edition of Sky & Telescope - May 2019