Build a Home Made Refracting Telescope
These plans are for a homemade telescope that will be cheap to build.
WHILE there are certain predominant
qualities of both of the basic telescope
types—reflector and refractor—that give
one an advantage over the other in each
of several special kinds of work, it remains
an obvious fact that for the person who has
limited storage space, who travels frequently
or who cannot give as much time
as he would like to astronomical observations,
the refractor is the telescope.
It is much more portable and requires
less care. Enclosed in a sealed metal tube,
the refractor practically eliminates for its
owner those irksome problems inspired by
dust and moisture. This does not mean,
of course, that its owner can be careless
about the outer surfaces of lenses. A disadvantage
of the refractor is that—size-for-size, comparatively—it is much more
expensive than a reflector.
Its useful objective diameter of
almost three inches brings within its range
the polar "ice" caps of Mars, the bands and
spots of Jupiter as well as that planet's
moons, the rings of Saturn and at least
five of her nine moons, Uranus and Neptune
and a big variety of nebulae—as well
as that old standby: the craters and mountains
of the Moon.
How to Build a 3 inch Refractor
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