Motor Speed Button; Main Menu; Tracking Menu; Tracking Mode - Celestron 80LCM Manual

MOTOR SPEED BUTTON

Pressing the Motor Speed key allows you to instantly change the
speed of the motors from high speed slew rate to precise guiding
rate or anywhere in between Each rate corresponds to a number
on the hand controller key pad with speed 9 being the fastest and
speed 1 being the slowest
Speeds 1-4 are good for centering objects in an eyepiece Speeds
5-6 are good for centering objects in the finderscope Speeds 7-9
are good for slewing long distances across the sky
To change the motor speed:
The hand control has a "double button" feature that allows you
to instantly speed up the motors without having to choose a
speed rate To use this feature, simply press the arrow button that
corresponds to the direction that you want to move the telescope
While holding that button down, press the opposite directional
button This will increase the speed to the maximum slew rate
NOTE: Sidereal rate is the speed at which the Earth rotates and objects
appear to drift across the sky. This is equivalent to 15 arc seconds per second.

MAIN MENU

The LCM contains many user defined setup functions designed to give the user control over the telescope's many advanced features All of the
set up and utility features can be accessed by pressing the MENU key (Keypad #7) and scrolling through the options

TRACKING MENU

Tracking Mode

Once the LCM is aligned, the tracking motors will automatically turn on and begin tracking the sky However, the tracking can be turned off for
terrestrial use:
• Off- When using the telescope for terrestrial (land) observation the tracking can be turned off so that the telescope never moves
• Alt-Az- This is the default tracking rate and is used when the telescope has been properly aligned
NOTE:
EQ North & EQ South tracking modes are only used with telescopes that are equatorially mounted. LCM telescopes use Alt-Azimuth mounts and cannot
utilize the two EQ tracking modes.

Tracking Rate

In addition to being able to move the telescope with the hand control buttons, the LCM will continually track a celestial object as it moves across
the night sky The tracking rate can be changed depending on what type of object is being observed:
• Sidereal- This rate compensates for the rotation of the earth by moving the telescope at the same rate as the rotation of the earth, but
in the opposite direction When tracking in Alt-Az mode, the telescope must make corrections in both altitude and azimuth
• Lunar- Used for tracking the Moon when observing the lunar landscape
• Solar- Used for tracking the Sun when solar observing using a proper solar filter
20 I ENGLISH
MOTOR SPEED RATE
1 0 5x Sidereal
2 1x Sidereal
3 4x Sidereal
4 8x Sidereal
5 16x Sidereal
6 64x Sidereal
7 1°
1 75°
8
9 2 75°
/ Second
/ Second
/ Second