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It is important to understand that menu selections are set in a loop (Fig. 28
).
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 (7, 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 demon-
strates 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 five times or the Scroll Up key once.
The screen in
Fig.
29
displa
ys two lines of information.The top line shows the current
menu. The second line displays an option which may be selected within that menu.
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 displa
yed 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 menu level;
e.g., the wrong menu option is chosen.
Important Note: No matter how many levels into Autostar II 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 II Navigation Exercise
To demonstrate how the Autostar II menu structure works, the following exercise cal-
culates Sunset time so an evening observing session can be planned.
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”
men
u.
3.
Press the ENTER k
ey to choose the "Event" option and move down a level.
"Event: Sunrise" is displayed.
BASIC AUTOSTAR II
Select Item:
Setup
Select Item:
Utilities
Select Item:
Glossary
Select Item:
Guided Tour
Select Item:
E
vent
SETUP MENU
A
utomatic alignment
permits all telescope
ope
rations with only
minimal setup.
UTILITIES MENU
Calculate
eyepiece
magnifications;
set timer ale
rts;
create your own
landma
rk survey.
GLOSSARY
What is an elliptical galaxy?
H
ow far away is the Sun?
Expand your knowledge of
astrono
my by displaying terms
and definitions, and other information.
OBJECT MENU
W
ant to see Mars? The Orion nebula?
The Andromeda galaxy? Select from
over 180,000 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 sh
owers.
GUIDED TOUR
A
utostar II escorts you
on a tour of tonight's
best celestial objects
at your viewing location.
Select Item:
Object
A
utostar I
I
The Unive
rse of
AAutostar Iutostar I
II
Fig. 27: The Autostar II Universe: The six primary categories listed in the Select Item menu
of Autostar II.
Object
Event
Guided Tours
Glossary
Utilities
Setup
Date
Time
Daylight Saving
Telescope
Targets
etc.
Setup
Align
Fig. 29: Menu options display on the
second line
.
Use the Scroll k
e
ys to
move up or down through the list of
options
. Press ENTER to select the
desired option.
Fig. 28: Menus set in a loop.