Meade LNT Instruction Manual download pdf (Page 31)

Using the Arrow keys, change the name of the site so that it now reads the name of your

observing location. Press ENTER. "Edit: Name" displays again.

5. Press the Scroll Down key and "Edit: Latitude" displays. Press ENTER.

6. Using the Number Keys, enter the latitude of your observing site and then press ENTER.

"Edit:

Latitude" displays again.

Press the Scroll Down key and "Edit: Longitude" displays. Press ENTER.

Using the Number Keys, enter the longitude of your observing site and then press ENTER.

"Edit: Longitude" displays again.

9. Press the Scroll Down key and "Edit: Time Zone" displays. Press ENTER. (If the site you

chose from the list in step 1 has the same

Time Zone as the site you are editing, just press

ENTER again to go on to the next step.) "Time Zone" refers to the Greenwich Time Zone

shift. Users West of Greenwich, use "-" hours (one hour per time zone) and users East of

Greenwich use "+" hours. For the United States, look up the shift in

Table 1, at the left.

10. After entering the shift, press ENTER. "Edit Time Zone" displays.

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

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

displays. Press ENTER to select the site or press MODE to exit.

Using AutoStar to Find Objects Not in the Database

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

AutoStar database lists.You will enter the object's name and RA and Dec coordinates (required

information). You may also enter the object's magnitude and size (optional information).

Although AutoStar contains an extensive database of celestial objects (stars, nebulae, planets,

etc.) that you can observe, you may eventually want to view objects that are not part of the

database. AutoStar 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 coordinates of the

object or objects you wish to observe. Check out 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/coordinates 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 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.

utoStar then prompts y

ou to enter the siz

e of the object.

This step is optional.

Use the

Number k

ys to enter the siz

e (in arc-min

utes), if so desired, and press ENTER to go to

the next display. If you do not wish to enter this information, simply press ENTER.

Time Zone

Shift

Atlantic -4 Hours

Eastern -5 Hours

Central -6 Hours

Mountain -7 Hours

Pacific -8 Hours

Hawaii -10 Hours

Table 1: Time Zone Shift.

TIP:

Entering R.A. and Dec

Coordinates of an

object without using

the menus:

If you do not wish to

navigate through the

menus, a more direct

way to enter coordinates

is to press and hold

MODE for two seconds

or more. R.A. and Dec

coordinates 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

displayed. As soon as

the coordinates are

entered, A

utoStar sle

the telescope to the

coordinates. Note that

the telescope must be

initializ

ed (see page 18)

for this procedure to

operate properly.

However, if you wish to

store the coordinates of

an object in memory, use

the method descr

ibed at

the right.

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Meade LNT Instruction Manual Page 31

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