Sky and Telescope - January 2018 - 33

inch planet and celestial globes has spawned a series of
6-inch semi-gloss-finished orbs for Earth, Moon, Mars, and
Pluto. As with their bigger counterparts, each is based on
detailed spacecraft imagery and has prominent features
labeled. And the Earth globe emphasizes our home world
as a planet without geopolitical boundaries. Each includes
a plastic stand and information card.

10

* U.S. price: $24.99 each

10
11

FINISHED CELLULAR MIRRORS
Dream Cellular dreamcellular.com

Dream Telescopes and its sister company Dream Cellular
have been perfecting lightweight-mirror technology for
more than a decade. And its cellular mirror blanks were
named one of our Hot Products for 2010. Now the company is offering finished lightweight mirrors from as small
as 25-mm diameter up to apertures greater than a meter. It
can also fabricate custom carbon-fiber mirror mounts that
thermally match the optics.
* U.S. price: projects quoted individually

11

COMPACT REFRACTOR
Astro-Tech astronomics.com

We know of countless life-long amateur astronomers who
got started sweeping the heavens with 60-mm refractors,
so there's no denying that these scopes can deliver a satisfying observing experience. And lately the market has seen
an increasing number of compact APO models. But the
Astro-Tech AT60ED 60-mm f/6 with its 2-inch, dual-speed
focuser offers the biggest bang for the buck that we're
aware of. Coupled with an optional field flattener, it doubles
as a powerful, wide-field imaging scope.
* U.S. price: $369

12
12

Starlight Instruments starlightinstruments.com

With all of today's emphasis on 2-inch and larger focusers,
it's nice to see that the legendary features, quality, and precision of Feather Touch focusers are now available with two
1¼-inch models, one offering a single-speed drive, the other
10:1 dual-speed. Both have ¾ inch of travel, an 8-pound
load capacity, a travel brake, and a drawtube with male
T-threads for easy attachment of cameras and accessories.
* U.S. price: from $249

13
13

PINT-SIZE PRECISION

ALTAZIMUTH PARAMOUNTS
Software Bisque bisque.com

Software Bisque, the world's foremost manufacturer of
equatorial telescope mounts for remote/robotic astronomy,
has announced its first foray into building altazimuth
mounts (and modifying its storied TheSkyX software to
control them). While every mount design has pros and
cons, advantages for altazimuth mounts include simplified
mechanical design of telescopes and fitting large-aperture
instruments into a compact area of operation (think smaller
domes). The new mounts include models with traditional
drive gears as well as ones with direct-drive motors.
* U.S. price: from $30,000

sk yandtelescope.com * JA N UA RY 2 018

33



http://www.dreamcellular.com http://www.astronomics.com http://www.starlightinstruments.com http://www.bisque.com http://www.skyandtelescope.com/

Sky and Telescope - January 2018

Table of Contents for the Digital Edition of Sky and Telescope - January 2018

Contents
Sky and Telescope - January 2018 - Cover1
Sky and Telescope - January 2018 - Cover2
Sky and Telescope - January 2018 - 1
Sky and Telescope - January 2018 - Contents
Sky and Telescope - January 2018 - 3
Sky and Telescope - January 2018 - 4
Sky and Telescope - January 2018 - 5
Sky and Telescope - January 2018 - 6
Sky and Telescope - January 2018 - 7
Sky and Telescope - January 2018 - 8
Sky and Telescope - January 2018 - 9
Sky and Telescope - January 2018 - 10
Sky and Telescope - January 2018 - 11
Sky and Telescope - January 2018 - 12
Sky and Telescope - January 2018 - 13
Sky and Telescope - January 2018 - 14
Sky and Telescope - January 2018 - 15
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Sky and Telescope - January 2018 - 17
Sky and Telescope - January 2018 - 18
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Sky and Telescope - January 2018 - 20
Sky and Telescope - January 2018 - 21
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Sky and Telescope - January 2018 - 25
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Sky and Telescope - January 2018 - 33
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Sky and Telescope - January 2018 - 83
Sky and Telescope - January 2018 - 84
Sky and Telescope - January 2018 - Cover3
Sky and Telescope - January 2018 - Cover4
Sky and Telescope - January 2018 - SGA18SAL
Sky and Telescope - January 2018 - 90
Sky and Telescope - January 2018 - SGA18S
Sky and Telescope - January 2018 - SGA18SA
Sky and Telescope - January 2018 - SGA18EAL
Sky and Telescope - January 2018 - 94
Sky and Telescope - January 2018 - SGA18E
Sky and Telescope - January 2018 - SGA18EA
Sky and Telescope - January 2018 - SGA18RAL
Sky and Telescope - January 2018 - 98
Sky and Telescope - January 2018 - SGA18R
Sky and Telescope - January 2018 - SGA18RA
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