Sky & Telescope - May 2021 - 73

ECLIPSE * DEC. 2021

Join Sky & Telescope for
the December 4, 2021
Total Solar Eclipse in the
South Orkney Islands on
an 18-night expedition
cruise to Antarctica.

CST# 2065380-40

http://InsightCruises.com/events/st12

Your Downtime Is Looking Up!

st12 Sixth Page Horiz ad1.indd 1

9/22/20 12:41 PM

DAVID NE W TON

S The three trolley wheels are angled to allow
circular motion but resist sideways motion.

Dave says, " It helps to give the mount
a proper front and back end shape,
rather than looking like a hastily lashed
together pallet. "
Despite its small footprint, the
mount doesn't tip over easily. And it's
very easy to carry around. It weighs only
6 pounds, less than a quarter of the
scope's 27-pound heft.
Dave reports that the mount works
quite well on his backyard deck even
though the deck has a grooved surface.
The wheels are bigger than the grooves,
so the irregularity presents no problem.
On rougher ground he sets the scope on
a small sheet of plastic or plywood or
even a carpet square.
I think it would be pretty difﬁcult
to ﬁnd a more minimalist altitudeazimuth mount for a 10-inch telescope.
This is truly thinking outside the box.
Dave says, " Despite its somewhat
rough-and-ready appearance, it's
already become my go-to scope for short
observing sessions. I can lift the whole
assembly in one piece, set it down on
the decking, and be ready to observe
literally in a matter of seconds. Plus, my
shins are now a little bit safer than they
were last week. "
For more information about constructing the Trolley Dob, contact Dave
at observatorydave@gmail.com.

 Contributing Editor JERRY OLTION
appreciates the simple things in life.

350-piece Mars

350-piece Moon

from Viking 1 orbiter photos

from Lunar Reconnaissance
Orbiter imagery

504-piece
Mystic Mountain
from Hubble images

Puzzles make
¢¤Ť£ဘ
shopatsky.com

Revisit Your Past Solar
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Introducing the ﬁrst-ever Earth globe
showing the paths of every total and
hybrid solar eclipse in the 21st century.

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Sky & Telescope
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Mars Globe

Moon Globe

The editors of
S&T collaborated
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Like S&T's original Moon globe,
this smaller version uses a surface
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s k y a n d t e l e s c o p e . o r g * M AY 2 0 2 1

73

http://www.InsightCruises.com/events/st12 http://www.shopatsky.com http://www.shopatsky.com http://www.shopatsky.com http://www.skyandtelescope.org

Sky & Telescope - May 2021

Table of Contents for the Digital Edition of Sky & Telescope - May 2021

Contents
Sky & Telescope - May 2021 - Cover1
Sky & Telescope - May 2021 - Cover2
Sky & Telescope - May 2021 - 1
Sky & Telescope - May 2021 - Contents
Sky & Telescope - May 2021 - 3
Sky & Telescope - May 2021 - 4
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Sky & Telescope - May 2021 - Cover3
Sky & Telescope - May 2021 - Cover4
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