Meade ETX-90PE Telescope User Manual


 
AUTOSTAR OPERATION
Object
Event 
Guided Tours
Glossary
Utilities
Setup
20
Date
Time
Daylight Saving
Telescope
Targets
etc.
Setup
Align
Fig. 27b: Menu options display on
the second line. Use the Scroll keys
to mo
ve up or down through the list
of options. Press ENTER to select
the desired option.
Fig. 27a: Menus set in a loop.
It is important to understand that menu selections are set in a loop (Fig. 27a
).
This
means that pressing the Scroll Down key cycles down through all the available options
within a given category, then returns to the first option. The Scroll Up key cycles up
through the options in the opposite order. Note that this capability is a quick way to get
to an option that is near the bottom of the list. The following example demonstrates this
capability.
Example:
To navigate to the “Select Item: Setup” menu option when the “Select Item: Object” menu is
displayed:
1. Press the Scroll Down key four times or the Scroll Up key once.
The screen in
Fig. 27b shows two lines of information in the AutoStar display. The top
line shows the current menu level. The second line displays an option which may be
selected. Some options are submenus that offer more choices. The Scroll keys move
up and down within the list of available options, showing one option at a time.
When an option is displayed on the second line, press the ENTER key to choose that
option.
Press the MODE key to return back to the last menu. This can be useful to exit a menu
or if the wrong menu option is chosen.
IMPORTANT NOTE: No matter how many levels into AutoStar are trav-
eled, each press of the MODE key moves up a level, until the top level,
"Select Item," is reached.
Once Select Item displa
ys
, press MODE to
retur
n to the topmost level, "Select Item: Object."
AutoStar Navigation Exercise
T
o demonstrate how the AutoStar menu structure works, the following exercise
calculates Sunset time so an evening observing session can be planned.
NOTE: To perform an accurate calculation, AutoStar MUST be properly
initialized with the location of the observing site. See
INITIALIZING
AUTOSTAR, page 17, before proceeding with this exercise.
To Calculate Sunset time:
1. Press the MODE key several times, until “Select Item: Object” is displayed.
2. Press the Scroll Down key once to display the “Event” option in the “Select Item”
menu.
Select Item:
Setup
Select Item:
Utilities
Select Item:
Glossary
Select Item:
Guided Tour
Select Item:
Event
SETUP MENU
Automatic alignment
permits all telescope
operations with only
minimal setup.
UTILITIES MENU
Calculate eyepiece
magnifications; 
set timer alerts; 
create your own
landmark survey.
GLOSSARY
What is an elliptical galaxy? 
How far away is the Sun?
Expand your knowledge of 
astronomy by displaying terms
and definitions, and other information.
OBJECT MENU
Want to see Mars? The Orion nebula? 
The Andromeda galaxy? Select from 
over 30,000 objects and press
GO TO to move the telescope 
automatically to an object.
EVENT MENU
Display the time of
past, present and future
astronomical events, 
such as Moon phases 
or meteor showers.
GUIDEDTOUR
Autostar escorts you 
on a tour of tonight's 
best celestial objects 
at your viewing location.
Select Item:
Object
Autostar
The Universe of
AAutoutostar star
Fig. 26: The AutoStar Universe: The six primary categories listed in the Select menu.