Celestron NexStar 80GTL User manual

Extend tripod legs 6 to 8 inches by loosening

the tripod leg locking bolts and pulling the leg

to desired length and re-tightening knob.

Assemble tripod by spreading the legs out until

the center leg brace is fully extended.

Item #31132

Quick Set-up Guide

123

All three legs should be the same length to

provide a level platform for the telescope.

Properly assembled, the accessory tray should

appear as pictured above.

Place accessory tray on top of center leg

brace as shown above.

To secure the accessory tray to leg brace,

tighten the attached screw located underneath

the leg brace.

Next Loosen the screw located on the

telescope tube ring clamp.

To balance the telescope, slide the tube ring

clamp to the line on the warning sticker located

on the telescope tube. Then tighten the tube ring

clamp screw.

NexStar 80GTL

Your NexStar 80GTL includes: optical tube w/ fork

arm attached; tripod; computerized hand control;

solar filter; erect image diagonal; two eyepieces;

finderscope; battery pack; accessory tray w/

compass; documentation including an owner’s

manual, The Sky™ CD and Telescope Control

Software.

Warning sticker line

Quick Set-up Guide [cont]

Hold the telescope tube assembly by the fork

arm and place the bottom of the base inside

the tripod mounting platform as shown.

Then thread the coupling screw into

the hole at the bottom of the fork arm base.

Tighten screw to secure the entire assembly.

When properly assembled your telescope

should look like this.

Place the computerized hand control in the

bracket on the accessory tray and connect the

hand control to the fork arm base as shown.

Attach the battery pack to the tripod by

hanging the strap from one of the wingnuts on

the tripod.

To attach the finderscope, loosen the silver

screw and slide finderscope into mounting

platform. The glass window should be facing

towards the front of the telescope.

Tighten silver screw to secure finderscope in

place.

17 18

Insert the chrome barrel of the 90º erect image

diagonal into the focuser and tighten the two

silver screws to secure in place.

Next loosen the silver screw at the top

of the 90º erect image diagonal and remove

the plastic cover.

Select the low power (25mm) eyepiece and

insert it as shown above. Tighten silver screw

to secure.

Remove tube lens cap to begin viewing.

While observing, tube should be positioned as

shown above.

A solar filter may be installed for viewing the

sun. Before use check to make sure there are

no pin holes in it. See inset. See owner’s

manual for complete instructions.

For detailed usage

information please

consult your manual.

Now you are ready to put in the 90º erect

image diagonal. First you must loosen the two

silver screws and then remove the plastic cap

from the focuser.

Coupling screw

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