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It is important to understand that menu selections are set in a loop (Fig. 20
).
This means that
pressing the Scroll Down key (7, Fig. 2) cycles down through all the available options within a
given category, then returns to the first option. The Scroll Up key (6, Fig. 2) 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.
Autostar displays two lines of information. The top line shows the current menu level. The sec-
ond line displays an option which may be selected within that menu level. Some options are
choices that select the next menu level down. The Scroll keys move up and down within the list
of available options, showing one option at a time.
When the desired option is displayed on the second line, press the ENTER key to choose that
option and move down one menu level.
Press the MODE key to leave a level (e.g., the wrong menu option is chosen).
IMPORTANT NOTE: No matter how many levels into Autostar are traveled, each
press of the MODE key moves up a level, until the top level, "Select Item," is
reached. Once in the Select Item level, press MODE to return to the topmost level,
"Select Item: Object."
Autostar Navigation Exercise
To 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 current date, time, and location of the observing site. To enter the current
date, time, and location information of your observing site, see INITIALIZING
AUTOSTAR
, page 17, before proceeding with this exercise.
BASIC AUTOSTAR OPERATION
Select Item:
Setup
Select Item:
Utilities
Select Item:
Glossary
Select Item:
Guided Tour
Select Item:
Event
SETUP MENU
Quick, easy alignment
permits all telescope
operations with only
a 2-minute 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 1400 database 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.
GUIDED TOUR
Autostar escorts you
on a tour of tonight's
best celestial objects
at your viewing location.
Select Item:
Object
MEADEMEADE
Autostar
The Universe of
Fig. 19:The Autostar Universe: The six primary categories listed in the Select Item menu of Autostar.
Object
Event
Guided Tours
Glossary
Utilities
Setup
Fig. 20: Menus set in a
loop.
Select Item
Solar System
Select Item
Object
EN
TER
Fig. 21: Autostar levels.