Bedienungsanleitung Celestron 76LCM (Seite 8 von 35) (Englisch)

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Eyepieces are commonly referred to by focal length and barrel

diameter. The focal length of each eyepiece is printed on the

eyepiecebarrel.Thelongerthefocallength(i.e.,thelarger

thenumber)thelowertheeyepiecepowerormagnication;

andtheshorterthefocallength(i.e.,thesmallerthenumber)

the higher the magniﬁcation. Generally, you will use low-to-

moderate power when viewing. For more information on how

to determine power, see the section on

“Calculating Magniﬁcation.”

Barrel diameter is the diameter of the barrel that slides into

the star diagonal or focuser. The LCM uses eyepieces with a

standard 1-1/4” barrel diameter.

Focusing

To focus your telescope, simply turn either of the focus knobs at

the eyepiece end of the optical tube. Turn the focus knob until

the image is sharp. Once sharp, turn the knob towards you to

focus on an object that is closer than the one you are currently

observing. Turn the knob away from you to focus on a more

distant object than the one you are currently observing.

The StarPointer Finderscope

The StarPointer is the quickest and easiest way to point your

telescope exactly at a desired object in the sky. It’s like having

a laser pointer that you can shine directly onto the night sky.

The StarPointer is a zero magniﬁcation pointing tool that uses a

coated glass window to superimpose the image of a small red

dot onto the night sky. While keeping both eyes open when

looking through the StarPointer, simply move your telescope

until the red dot, seen through the StarPointer, merges with the

object as seen with your unaided eye. The red dot is produced

byalight-emittingdiode(LED);itisnotalaserbeamandwill

not damage the glass window or your eye. The StarPointer is

poweredbyalonglife3-voltlithiumbattery(#CR1620).Likeall

ﬁnderscopes, the StarPointer must be properly aligned with the

main telescope before it can be used. The alignment procedure

is best done at night since the LED dot will be difﬁcult to see

during the day.

Install the Battery

1. Unscrew the battery cover on the StarPointer ﬁnderscope.

2. Insert battery with “+”side facing out.

3. Replace battery cover.

Aligning the StarPointer

1. To turn on the StarPointer, turn the switch to the “on”

position – see Figure 2-9

2. Locate a bright star or planet and center it in a low power

eyepiece in the main telescope.

3. With both eyes open, look through the glass window at the

alignment star. If the StarPointer is perfectly aligned, you

will see the red LED dot overlap the alignment star. If the

StarPointer is not aligned, take notice of where the red dot is

relative to the bright star.

4. Without moving the main telescope, turn the StarPointer’s

two adjustment screws until the red dot is directly over the

alignment star. Experiment as to which way each screw

moves the red dot.

The StarPointer is now ready for use. Always turn the power

off after you have found an object. This will extend the life

of both the battery and the LED.

Attaching the Hand Control

The LCM hand control has a phone jack type connector at the

end of its cord. Plug the phone jack connector into the outlet

on the top of the motorized base. Push the connector into the

outlet until it clicks into place and place the hand control into

its holder as described previously in the Assembly section of

the manual.

Powering the Telescope

The LCM can be powered by 8 user supplied AA size alkaline

batteries or an optional 12V AC adapter. To install batteries into

the LCM:

1. Press the tab on the front of the battery compartment and

remove the cover.

Figure 2-9

The sTArPoinTer FinderscoPe

Adjustment

Screws

Battery

Compartment

Power

Switch

Figure 2-11A

reMoving The BATTery coMPArTMenT Lid

Figure 2-10

The LcM MoTorized BAse

Power Switch

Hand Control Jack

Battery

Compartment

Release

Tab

12v Outlet

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