5.
LineAR Mount Stationing
The LineAR is an equatorial mount and therefore it is necessary to make its polar axis parallel
with the Earth rotation axis.
In this chapter the operations to trim the latitude and the azimuth and to perform the mount
alignment to the celestial pole using the standard polar scope (or the optional alternative) will be
described.
5.1
Latitude Fine Adjustment
The first operation to perform (after the tripod
has been "levelled" using the appropriate
spherical bubble level installed on the base
plate) consists on inclining the polar axis at
the latitude of the observation site (for
example Milan and Venice are at 45 °, Rome
at 42 °, Palermo at 38 °) using the two
Altitude knobs (acting in push-pull
arrangement) and the indication of the scale
latitude, engraved on the left side of the
mount. As mentioned, the mount adjustment
range in latitude goes from about 10 ° to 70 °.
The latitude adjustment is accomplished with both
hands: when you screw the back knob, unscrew the
same number of laps (or fraction) the front knob or
vice versa.
To increase the latitude (lift) of the polar axis,
turn the rear latitude adjustment knob clockwise.
To decrease the latitude (lower) of the polar
axis, turn the rear latitude adjustment knob
counter clockwise.
Note: In general it is better to make fine adjustments in latitude by moving the mount in
contrast with gravity, i.e. raising the polar axis of the mount.
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Summary of Contents for Linear Fast Reverse
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