Meade 2080 Instruction Manual page 28

8 inch schmidt-cassegrain; 10 inch schmidt-cassegrain
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-29-
a 2X or 3X Barlow lens.
Then follow this procedure:
1.
Place
the Illuminated
Reticle
Eyepiece
(or
Eyepiece/Barlow
combination)
into the eyepiece-
holder
of the telescope.
2.
point the telescope with the motor drive running,
at a moderately bright star near where the merid-
ian (the North-South line passing through your
local zenith) and the celestial equator inter-
sect.
For best results the star should be lo-
cated within!
30 minutes in R.A. of the meridian
and within!
50 of the celestial equator.
3.
Note the extent
of the star's drift
in Declina-
tion
(disregard
drift
in Right Ascension):
a)
If the star drifts
South,
the telescope's
polar axis is pointing
too far East.
b)
If the star drifts North, the telescope's
polar axis is pointing too far
~.
4.
Move the wedge in azimuth (horizontal) to effect
the appropriate change in polar alignment.
Re-
position the telescope's East-West polar axis
orientation until there is no further North-
South drift by the star.
Track the star for
a period of time to be certain that its Decli-
nation drift has ceased.
5.
Next,
point
the telescope
at
bright
star near the Eastern
near the celestial
equator.
the star should be about
20°
Eastern
horizon
and within
~
equator.
another moderately
horizon,
but still
For best results
to 300 above
the
50 of the -celestial
.
.
6.
Again
note the extent
of the star's drift
in
Declination:
a)
If the star drifts
South,
the telescope's
polar axis is pointing too low.
.
b)
If the star drifts
North,
the telescope~s
polar axis is pointing
too high.
7.
Use the latitude
angle fine-adjust
control
on the
wedge
to effect
the appropriate
change
in latitude
angle,
based on your observations
above.
Again
track the star for a period
of time to be certain
that Declination
drift
has ceased.

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