Meade-instruments LX200GPS User Manual download pdf (Page 33)

11. Press MODE. "Site: Edit" displays.

12. Using the Arrow keys, scroll to "Site: Select." The site you have just edited dis-

plays. Press ENTER to select the site.

Creating User Objects

In this procedure, you will enter coordinates of celestial objects that do not appear in

any of the Autostar II libraries. You will enter the object's name and R.A. and Dec.

coordinates (required information). You may also enter the object's magnitude and

size (optional information).

Although Autostar II contains an extensive database of celestial objects (stars, nebu-

lae, planets, etc.) that you can observe, you may eventually want to view objects that

are not part of a library. Autostar II provides a feature that allows you to enter an

object's R.A and Dec. coordinates in the "User: Objects" option of the Object menu

and allows automatic slewing of the telescope to the user-entered coordinates.

In order to use this menu option, you first need to look up the R.A and Dec. coordi-

nates of the object or objects you wish to observe. Check your local library, computer

store, or bookstore for astronomy books, CD Roms, or magazines (such as Sky &

Telescope or Astronomy), to find coordinates of celestial objects. The objects/coordi-

nates you enter become part of your own permanent database, called "User Objects."

To enter coordinates of an object into the "User: Objects" option of the Object

menu:

1. Make sure Autostar II has been initialized and the telescope has been aligned.

2. After the telescope is aligned, "Select Item: Object" displays. (If necessary, use

the Scroll keys to scroll through the menus, as previously described, to find this

option.) Press ENTER.

3. "Object: Solar System" displays. Keep pressing the Scroll Up key until "Object:

User Object" displays and press ENTER.

4. "User Object: Select" displays. Press the Scroll Down key once. "User Object:

Add" displays. Press ENTER.

5. "Name" displays on the top line and a blinking cursor on the second line. Use the

Arrow keys, as previously described, to enter the name of the object you wish to

add to the database. When you are finished, press ENTER.

6. "Right Asc.: 00.00.0" displays. Use the Number keys to enter the digits for the

Right Ascension coordinate of your object. When you are finished, press ENTER.

7. "Declination: +00°.00'" displays. Use the Number keys to enter the digits for the

Declination coordinate of your object. If necessary, use the Scroll Keys to change

"+" to "-." When you are finished, press ENTER.

8. Autostar II then prompts you to enter the size of the object. This step is optional.

Use the Number keys to enter the size (in arc-minutes), if so desired, and press

ENTER to go to the next display. If you do not wish to enter this information, sim-

ply press ENTER.

9. Autostar II then prompts you to enter the magnitude of the object. This step is also

optional. Use the Number keys to enter this information, if so desired, and press

ENTER to go to the next display. "User Object: Add" displays again.

To GO TO a user-entered object:

In this procedure, you will choose an object from the User Object list and GO TO the

object.

1. With "User Object: Add" displayed, press the Scroll Up key once. "User Object:

Select" displays. Press ENTER.

2. Use the Scroll keys (if necessary) to scroll to the desired object. Press ENTER.

3. The name of the object and the Right Ascension and Declination coordinates display.

4. Press GO TO and the telescope slews to the object.

Tip:

Using Autostar II to find

objects not in the libraries:

If you do not wish to navigate

through the menus, a more

direct way to enter coordi-

nates is to press and hold

MODE for two seconds or

more. R.A. and Dec. coordi-

nates display. Press GO TO.

"Object Position" and a set of

coordinates displays. Enter

the R.A. and Dec. coordinates

of any celestial object using

Number keys, overwriting the

coordinates currently dis-

played. As soon as the coor-

dinates are entered, Autostar

II slews the telescope to the

coordinates. Note that the tel-

escope must be aligned (see

page 18).

However, if you wish to store

the coordinates of an object

in memory, use the method

described at the right.

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