|
A telescope is an
optical instrument that allows you to
view objects that are located in the
distance. It is necessary to obtain the
right telescope based on your location,
and star gazing preference. There are
three major types of telescopes
including Refractors telescope,
Reflector telescope, and Schmidt
Cassegrain telescope. Refractor
telescope has convex lenses. In
refractor telescope, the light will
travel down the tube and arrive at the
focal length of the eyepiece. Reflector
telescope has concave mirrors. In
reflector telescope, the light is
reflected to a secondary mirror which is
located in front. Schmidt Cassegrain
telescope uses lenses and mirrors to
provide a clear view of the object in
the distance.
The refractor telescope is good for
exploring planets and moon while the
reflector telescope is suitable for
observing deep sky object. One
disadvantage of the refractor telescope
is that the lights focus on different
points due to the bending lens.
In order to shop for the right telescope,
you should familiarize yourself with all
the advantages and disadvantages of the
lenses and telescope. You should
purchase your telescope from a reputable
seller. If there is a telescope club,
you can go there to seek the advice of
the experts. They will be able to
explain the different features of each
type of telescope and guide you to buy
the right one that suits your needs.
Some factors that you should take into
account while purchasing telescope
include mobility, easy of difficult to
setup, and the complexity of the
telescope.
|
|
|
