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Now in stock!!!
Astro-Tech 16 inch
Truss-Dobsonian Telescope
Like all
Dobsonian reflectors, this very complete 16" Astro-Tech truss-tube Dob
gives you more light-gathering for your dollar than any other telescope
type. Its very large 16" aperture
gathers four times the light of an 8" scope (and
almost 3400 times as much as the sharpest dark-adapted eye)! The result?
It shows you very faint deep space objects that are simply invisible in
smaller scopes. And color is often visible in the brighter nebulas. With
a visual limiting magnitude of 15.5, this 16" Astro-Tech is ideal for
observing faint nebulas, galaxies, and star clusters from a dark sky
site – all the faint fuzzies outside the solar system that fascinate us.
Despite
its large aperture, the 16" Astro-Tech Dobsonian is easy to get to your
favorite observing site, whether that be your own back yard or a dark
sky site miles out of town. Unlike a bulky Sonotube or metal tube Dobs,
you don’t need a van or small truck to transport this big 16" scope to
the dark sky sites it needs to perform at its best.
The 16" Astro-Tech breaks down into a few
compact components that fit into virtually any car trunk or into the
back seat of just about any compact car. It weighs
only 134 pounds fully assembled. Assemble the AT16D in just a few
minutes, with no tools needed,
and you’re ready for an evening of fascinating viewing at your favorite
dark sky location.
The
first component is the 14 pound aluminum upper cage containing the
diagonal mirror, 2" focuser, and 8 x 50mm right angle erect image
finderscope. Second is the 60 pound aluminum mirror tub holding the
primary mirror in its 18-point flotation cell. Three light-weight (6
pounds total) but very rigid single strut aluminum truss tubes connect
the secondary cage to the mirror tub. They have die-cast brackets with
curved notches that mate with projections on the cage and tub rims by
means of large hand-tighten knobs, making assembly easy. Finally,
there’s the 54 pound laminated particle board base (rocker box) in which
the mirror tub sits.
With 1/12th wave surface accuracy,
the performance of the BK7 optical glass mirrors of the 16" Astro-Tech
Dobsonian is guaranteed to be diffraction limited – for sharp high
contrast images of nebulas, galaxies, and star clusters. Planetary
images are also sharp and crisp, although a neutral density filter is
certainly required to allow glare-free observing. The mirrors are
overcoated with quartz for long life.

Because of its compact individual component sizes and reasonably light
component weights, the 16" Astro-Tech can easily be transported and
assembled by one dedicated individual, although two people will
generally make it easier to assemble aluminum upper cage to the truss
tubes. Set-up time is only about 15-20 minutes.
The 16" Astro-Tech Dobsonian is designed for visual observing only – to
show you as much of the night skies in as much detail as possible. Under
dark skies, color becomes visible to the eye in many nebulas. The Orion
Nebula becomes a glowing blue-green mass of filaments, often tinged with
red and yellow for the keen-eyed observer from a dark sky site. With a
resolving power of 0.29 arc seconds, globular clusters can often be
resolved to their cores in good seeing, with each cluster becoming a
vivid ball of tiny individual stars instead of a hazy blur. Knottings
and structure in the arms of the Whirlpool Galaxy become clear. Mighty
globular clusters in the distant Andromeda Galaxy begin to reach the
threshold of visibility for the exceptionally keen-eyed observer.
As
with any large aperture telescope, the performance of the 16" Astro-Tech
Dobsonian on faint objects will be markedly improved by a dark sky
observing site. Light-polluted city and suburban sites are not
recommended as the primary observing site with any 16" scope. Such light
polluted sites require a light pollution filter to take even limited
advantage of its immense light-gathering.
While it is in deep space observing of galaxies and nebulas from a dark
sky observing site that the 16" Astro-Tech Dobsonian excels, significant
planetary and lunar observing is also within its capability. Small
details in the atmospheres of Jupiter and Saturn and on the surface of
Mars reveal themselves at high powers given suitably good seeing. All
you need is steady skies and a neutral density eyepiece filter to cut
down the immense brightness of solar system objects seen through this
immense “light bucket."
The 218 pound shipping weight 16" Astro-Tech Dobsonian is
shipped freight-free directly to you
via air freight.
Simply-made, but with precision optics, this Astro-Tech 16" Dobsonian
reflector will reward you with thousands of bright deep space views and
years of trouble-free observing enjoyment.
This
16" Astro-Tech Dobsonian reflector has:
• 1/12th wave p-to-p wave BK-7 optics
• 18-point primary mirror floatation system
• innovative three-strut truss-tube design
• dual-speed 2" Crayford focuser with 1.25" adapter
• innovative ball-bearing altitude motion with clutch
• smooth roller-bearing azimuth motion
• tube balance system and cooling fan
• 8 x 50mm R.A.C.I. finderscope
• 2" 30mm SuperView eyepiece and 1.25" 9mm Plössl eyepiece
• laser collimator, eyepiece tray, Moon filter
• free air shipping
Price $2395.00 with FREE AIR SHIPPING
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