Bedienungsanleitung Celestron CPC Deluxe 800 HD - 11007 (Seite 14 von 50) (Englisch)

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EQ One-Star Align

EQ One-Star Align operates much the same way as EQ Two-Star Align,

however it only relies on the alignment of one star to align the telescope.

To use EQ One-Star Align follow the same steps as you would for

EQ Two-Star Align, but only using one star.

EQ Solar System Align

This alignment method allows you to use only one solar system object to

equatorially align the telescope for daytime use. To align your telescope

using a solar system object, follow steps 1 through 7 under the

EQ Two-Star Align section.

CPC Re-Alignment

The CPC has a re-alignment feature which allows you to replace either of

the original alignment stars with a new star or celestial object. This can

be useful in several situations:

• If you are observing over a period of a few hours, you may notice

that your original alignment stars have drifted towards the west

considerably. (Remember that the stars are moving at a rate of 15º

every hour). Aligning on a new star that is in the eastern part of the

sky will improve your pointing accuracy, especially on objects in

that part of the sky.

• If you have aligned your telescope using the One-Star or Solar

System alignment method, you can use re-align to align to

additional objects in the sky. This will improve the pointing

accuracy of your telescope without having to re-enter addition

information.

To replace an existing alignment star with a new alignment star:

1. Select the desired star (or object) from the database and slew to it.

2. Carefully center the object in the eyepiece.

3. Once centered, press the UNDO button until you are at the main menu.

4. With CPC Ready displayed, press the ALIGN key on the hand control.

5. The display will then ask you which alignment star you want to replace.

Use the UP and DOWN scroll keys to select the alignment star to be

replaced. It is usually best to replace the star closest to the new object.

This will space out your alignment stars across the sky. If you have used

one of the single object alignment methods, then it is always best to

replace the object that is “unassigned” with an actual object.

6. Press ALIGN to make the change.

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Now that the telescope is properly aligned, you can choose an object

from any of the catalogs in the CPC’s extensive database. The hand

control has a key (4) designated for each of the catalogs in its database.

There are two ways to select objects from the database: scrolling

through the named object lists and entering object numbers.

Pressing the LIST key on the hand control will access all objects in the

database that have common names or types. Each list is broken down

into the following categories: Named Stars, Named Object, Double

Stars, Variable Stars, Asterisms and CCD Objects. Selecting any one of

these catalogs will display a numeric-alphabetical listing of the objects

under that list. Pressing the UP and DOWN keys (10) allows you to scroll

through the catalog to the desired object.

When scrolling through a long list of objects, holding down either

the UP or DOWN key will allow you to scroll through the catalog

at a rapid speed.

Pressing any of the other catalog keys (M, CALD, NGC or STAR) will

display a blinking cursor below the name of the catalog chosen. Use

the numeric key pad to enter the number of any object within these

standardized catalogs. For example, to nd the Orion Nebula, press the

“M” key and enter “042”.

When entering the number for a SAO star, you are only required to enter

the rst four digits of the objects six digit SAO number. Once the rst

four digits are entered, the hand control will automatically list all the

available SAO objects beginning with those numbers. This allows you

to scroll through only the SAO stars in the database. For example, in

searching for the SAO star 40186 (Capella), the rst four digits would be

“0401”. Entering this number will display the closest match from the SAO

stars available in the database. From there you can scroll down the list

and select the desired object.

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Once the desired object is displayed on the hand control screen, choose

from the following options:

• Press the INFO Key. This will give you useful information about the

selected object such as R.A. and declination, magnitude size and

text information for many of the most popular objects.

• Press the ENTER Key. This will automatically slew the telescope to

the coordinates of the object.

Caution: Never slew the telescope when someone is looking into

the eyepiece. The telescope can move at fast slew speeds and may

hit an observer in the eye.

If you manually enter an object that is below the horizon, CPC will

notify you by displaying a message reminding you that you have

selected an object outside of your slew limits (see Slew Limits in the

Scope Setup section of the manual). Press UNDO to go back and

select a new object. Press ENTER to ignore the message and continue

the slew.

Object information can be obtained without having to do a star

alignment. After the telescope is powered on, pressing any of the

catalog keys allows you to scroll through object lists or enter catalog

numbers and view the information about the object as described above.

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