Sky & Telescope - January 2022 - 73

Something you won't find on Morgan's
scope are counterweights. Rather
than have to fiddle with weights each
time he changes eyepieces or finders,
he made a sliding dovetail control arm
with a locking knob. The arm connects
to the front of the rocker box where the
handle used to be (no longer needed
now that the scope rolls on a dolly), and
it attaches to the top of the telescope
tube with four rare-earth magnets.
The magnets securely hold the head of
the arm to the metal OTA and keep it
snug against the front rim yet permit
easy removal when necessary. Morgan
adjusted the length of the arm's sliding
parts to allow for motion all the way
from the zenith down to about 11°
above the horizon. When he moves the
scope in altitude, he simply loosens the
locking knob, makes his adjustment,
and locks it down again. One additional
benefit to this arrangement over
counterweights is that the control arm
dampens vibration almost instantly.
Morgan made one last major
improvement: He put a big handle
underneath the OTA's upper rim. He
says, " I am fond of Rockler's 4½-inch jig
handle that comfortably fills my whole
hand rather than just a few fingers. It's
the one thing I constantly hang onto
throughout the night and use to slew
the OTA with my left hand while operating
the control arm locking knob with
my right. "
What's left to add? An azimuth
setting circle between the base plates.
Other than that, the only thing missing
is the kitchen sink.
For more information, contact Morgan
at sagebully2@gmail.com.
¢ Contributing Editor JERRY OLTION
says you don't truly own a scope until
you've drilled holes in it.
SHARE YOUR INNOVATION
º Do you have a telescope
or ATM observing accessory
that S&T readers would enjoy
knowing about? Email your
projects to Jerry Oltion at
j.oltion@gmail.com.
sk yand tele scope .o r g * JANUARY 2022 73
Sky & Telescope's
2022 Observing Calendar
The 2022 Sky & Telescope Observing Calendar combines gorgeous astrophotography
and special monthly sky scenes that illustrate the positions of the Moon
and bright planets. It also highlights important sky events each month, including
eclipses, meteor showers, conjunctions, and occultations. Makes a great gift!
shopatsky.com
From 1 January 2022
AAS Journals Will Be
Fully Open Access
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with AAS Publishing.
Find out more: journals.aas.org/oa
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Sky & Telescope - January 2022

Table of Contents for the Digital Edition of Sky & Telescope - January 2022

Contents
Sky & Telescope - January 2022 - Cover1
Sky & Telescope - January 2022 - Cover2
Sky & Telescope - January 2022 - 1
Sky & Telescope - January 2022 - Contents
Sky & Telescope - January 2022 - 3
Sky & Telescope - January 2022 - 4
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Sky & Telescope - January 2022 - Cover3
Sky & Telescope - January 2022 - Cover4
Sky & Telescope - January 2022 - SA1
Sky & Telescope - January 2022 - SA2
Sky & Telescope - January 2022 - SA3
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Sky & Telescope - January 2022 - SA5
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