Celestron FIRSTSCOPE 80 EQ - Page 10

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4 See the illustration below if you are not sure where the North Pole is located.
Dipper
Big *
Dipper
N.C.P.+ p o!<(n ,
_ fSiiil stati
: Ctliiopda
■ i mmm
5. T o find astronomical objects, you will now mainly use the right ascension axis as the polar
alignment virtually eliminates needed adjustments in the declination axis.
To track objects continuously, adjustments will be made with the right ascension cable. If you use
the optional motor drive (this moves at the same rate as the Earth rotates), it will automatically
track the objects for you.
So, if using a motor drive, the objects observed through the telescope appear stationary (they do
not drift out of the field of view). When using the basic telescope, all objects in the sky will
slowly drift out of the field of view unless you manually make corrections with the right ascension
cable.
6. The above method of polar alignment is adequate for casual observing. More precise methods of
polar alignment are available and most astronomy texts or telescope books describe the
procedures.
7. If you look at the North Star after this polar alignment procedure, your declination setting circle
(#23) should read 90 (the actual is 89.2 ).
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