Sky and Telescope - June 2015 - 4

June 2015
On the cover: The
star cluster R136 in 30
Doradus is just one of
the countless wonders
the Hubble Space Telescope has shown to us.
PHOTO: NASA / ESA / F. PARESCE
(INAF-IASF) / R. O'CONNELL (UNIV. OF
VIRGINIA, CHARLOTTESVILLE) /
WFC3 SCIENCE OVERSIGHT
COMMITTEE

F E AT U R E S

How Hubble Changed
the Face of Astronomy

20
COVER
STORY

The ﬁrst of the "Great Observatory"
space telescopes transformed what
astronomers knew - and didn't know -
about the universe.
By Govert Schilling

Measuring Earth's Shadow:
170 Years of Crater Timings

A very long-running lunar eclipse project
reaches fruition. By Roger W. Sinnott

The Science of
Jules Verne's Fiction

Nineteenth-century science and
technology shaped two classic tales of
imaginary spaceﬂight. By Dean Regas

Catch the Sun in a Can

Here's a fun astrophotography project that
anyone can do. By Maciej Zapiór

Abell Galaxy Cluster 2065

Follow this observer's guide to the
Corona Borealis galaxy cluster.
By Howard Banich

VOL. 129, NO. 6

O B S E RV I N G J U N E

43 In This Section
44 June's Sky at a Glance
45 Binocular Highlight
By Gary Seronik

46 Planetary Almanac
47 Northern Hemisphere's Sky
By Fred Schaaf

48 Sun, Moon & Planets
By Fred Schaaf

50 Celestial Calendar
By Alan MacRobert

54 Exploring the Moon
By Charles Wood

56 Deep-Sky Wonders
By Sue French
S &T T E S T R E P O R T

66 Celestron's Superfast
Astrograph
By Alan Dyer

6 Spectrum
By Peter Tyson

8 Letters
10 75, 50 & 25 Years Ago
By Roger W. Sinnott

12 News Notes

COURTESY OF JARED WOODFILL

SkyandTelescope.com/
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Enjoy our growing collection
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Saturn to meteor showers.
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OBSERVING GUIDES

Want to observe but don't
know what to look at or how
to do it? Our how-to guides
will help you get the most
out of observing classic
celestial sights.
SkyandTelescope.com/objects
ASTROPHOTO TUTORIALS

73 Book Review

Learn insider tricks from Equipment Editor Sean Walker in our
astrophotography webinars.

74 Telescope Workshop

SkyandTelescope.com/classroom

72 New Product Showcase

By Gary Seronik

76 Gallery
86 Focal Point

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June 2015 sky & telescope

BUILD COMMUNITY

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enthusiasts? Find local
clubs, planetariums, and
observatories in your area,
or add your own organization
to our listings.

18 Cosmic Relief

By John McConnell

SkyandTelescope.com

ALSO IN THIS ISSUE

By David Grinspoon

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Sky and Telescope - June 2015

Table of Contents for the Digital Edition of Sky and Telescope - June 2015