Sky & Telescope - USA (2019-11)

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ONLINE

Artist’s concept of our

Milky Way map under

construction

ON THE COVER

CASEY REED

FEATURES

Cover Story:

16 Mapping the Milky Way

Recent years have seen tremendous

strides in unraveling the galaxy’s

spiral arms. By Ken Croswell

24 Seeing Stars

Astronomers are linking arrays of

telescopes together to reveal the

long-hidden visages of faraway suns.

By Christopher Crockett

30 Orator of the Stars

The captivating Ormsby MacKnight

Mitchel helped popularize astron-

omy in mid-19th century America.

By Trudy E. Bell

36 Demystifying Image

Calibration

This important step will dramati-

cally improve your imaging results.

By Ron Brecher

60 A Full Deck of Kings

Open clusters can be pleasing to

behold but tend to be elusive. Join

the authors on their foray into the

world of King open clusters.

By Al Lamperti & Frank Colosimo

S&T TEST REPORT

68 Celestron’s RASA 8

Schmidt Astrograph

By Richard S. Wright, Jr.

COLUMNS / DEPARTMENTS

4 Spectrum

By Peter Tyson

6 From Our Readers

7 75, 50 & 25 Years Ago

By Roger W. Sinnott

8 News Notes

14 Cosmic Relief

By David Grinspoon

72 Astronomer’s Workbench

By Jerry Oltion

74 Gallery

83 Event Calendar

84 Focal Point

By William Simmons

OBSERVING

41 November’s Sky at a Glance

By Diana Hannikainen

42 Lunar Almanac & Sky Chart

43 Binocular Highlight

By Mathew Wedel

44 Planetary Almanac

45 Under the Stars

By Fred Schaaf

46 Sun, Moon & Planets

By Fred Schaaf

48 Celestial Calendar

By S. N. Johnson-Roehr

52 Exploring the Solar System

By William Sheehan

54 Deep-Sky Wonders

By Sue French

57 Going Deep

By Dave Tosteson

THE ESSENTIAL GUIDE TO ASTRONOMY

CONTENTS

2 NOVEMBER 2019 • SKY & TELESCOPE

November 2019 VOL. 138, NO. 5

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