Getting Started; Setting The Mount And Performing Polar Alignment; Manual Operation Of The Mount; One Star Alignment - iOptron CEM70 Instruction Manual

4. Getting Started

In order to experience the full GOTO capability of GOTONOVA
up the mount correctly before observation.

4.1. Setting the Mount and Performing Polar Alignment

Assemble your CEM70 mount. Make sure the mount is leveled. Mount an OTA and accessories, and
carefully balance the mount on both R.A. and DEC axes. Turn the mount power switch on. When the GPS
receiver is connected to satellites, the hand controller LCD will display GPS OK and the mount will have the
correct time and site information (this can also be entered manually as previously described). Polar align the
mount.
Always check if the mount is at the Zero Position when the mount is powered on, i.e. with the
counterweight shaft pointing to ground, OTA at the highest position with its axis parallel to the polar axis and
the telescope pointing to the Celestial Pole. Press MENU => "Zero Position" => "Goto Zero Position" to
check it. If the mount is not at the Zero Position, press MENU => "Zero Position" => "Set Zero Position."
Release the Gear Switch to manually return the mount to Zero Position, or use the hand controller to slew
the mount to Zero Position. Press ENTER to confirm the zero position.

4.2. Manual Operation of the Mount

The mount can now be used to observe astronomical objects using the HC. Use the arrow keys (►,
◄, ▼, and ▲) to point the telescope to the desired part of the sky. Use the number keys to change the
slewing speed. Press the STOP/0 button to start tracking.

4.3. One Star Alignment

After the mount set up, perform a "One Star Align" to correct the Zero Position discrepancy, or
linear error.
Press MENU => "Alignment" => "One Star Align" to perform "One Star Align." The hand controller
will display an alignment star. Select a different star using the ▲ or ▼ keys. Then press ENTER. After the
mount slews to the target, use the arrow keys to center it in your eyepiece. Then press ENTER. (More
details on the alignment function are given in section 5.3)

4.4. GOTO the Moon and Other Objects

After performing these set-ups the mount is ready to GOTO and track objects. One of the most
common objects is the Moon.
To slew to the Moon press MENU=>"Select and Slew"=>"Solar System"=>Moon=>ENTER. The
telescope will automatically slew to the Moon and lock on it. It will automatically begin to track once it locks
on. If the Moon is not centered in your eyepiece, use the arrow keys to center the Moon. You may use
"Sync to Target" to improve the tracking.
You may also select other bright celestial objects to start with, such as Jupiter or Saturn.

4.5. Star Identification Function

The 8407+ hand controller has a star identification function. After setting the correct local time and
location and completing polar alignment, slew the telescope to a bright star manually or using the GOTO
®
technology it is very important to set
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