Sky & Telescope - February 2023 - 2

CONTENTS
THE ESSENTIAL GUIDE TO ASTRONOMY
FEATURES
12 The Allure of
Wolf-Rayet Stars
These rare jewels create powerful
winds and mesmerizing dust spirals.
By Greg Bryant
18 Winter Outreach
Showing the public celestial sights
through a telescope can be a
wonderfully rewarding experience.
By Ted Forte
24 The Constellations of
Petrus Plancius
A little-known astronomer introduced
16 of our 88 constellations.
Who was he? By Ray Harris
30 The Cepheus Spur
This feature in our galaxy drapes
distant luminaries across the
northern sky from Cepheus to
Orion. By Ken Croswell
34 The Gaia Revolution
The prolific surveyor has mapped
the universe and unraveled our
galaxy's history. By Govert Schilling
Cover Story:
60 Sewing Up Nightscapes
Panoramic mosaics can show far
more than a single image ever can.
By Alan Dyer
ON THE COVER
ONLINE
ASTRO TOURISM
Come with us to explore wonders
both on Earth and in the sky.
skyandtelescope.org/tours
ONLINE STORE
Equip yourself for astronomy excellence
with books, sky atlases, and
more from S&T and Willmann-Bell.
shopatsky.com
The Milky Way over
the Saskatchewan
Summer Star Party
PHOTO: ALAN DYER
2
DIGITAL EDITION
Use the email connected to
your subscription to read
our latest digital edition.
skyandtelescope.org/
digital
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IL, 60069-9806. Printed in the USA. Sky & Telescope maintains a strict policy of editorial independence from the AAS and its research publications in reporting on astronomy.
FEBRUARY 2023 * SKY & TELESCOPE
MARCH 2018 * SKY & TELESCOPE
18
OBSERVING
41 February's Sky at a Glance
By Diana Hannikainen
42 Lunar Almanac & Sky Chart
COLUMNS / DEPARTMENTS
43 Binocular Highlight
By Mathew Wedel
44 Planetary Almanac
45 Evenings with the Stars
By Fred Schaaf
46 Sun, Moon & Planets
By Gary Seronik
48 Celestial Calendar
By Bob King
52 Exploring the Solar System
By Charles A. Wood
54 First Exposure
By Tony Puerzer
57 Going Deep
By Bob King
4 Spectrum
By Peter Tyson
6 From Our Readers
7 75, 50 & 25 Years Ago
By Roger W. Sinnott
8 News Notes
72 Book Review
By Peter Tyson
74 Astronomer's Workbench
By Jerry Oltion
76 Beginner's Space
By Diana Hannikainen
78 Gallery
84 Focal Point
By Bob Konior
S&T TEST REPORT
68 iOptron's Hybrid
Equatorial Mount
By Johnny Horne
February 2023
VOL. 145, NO. 2
NPS / WILLIAM PEDRO

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Sky & Telescope - February 2023

Table of Contents for the Digital Edition of Sky & Telescope - February 2023