If your book comes with a CD-ROM, use it to install the Starry Night
Enthusiast \({ }^{\mathrm{TM}}\) planetarium software on your computer and run
this program to determine when the Moon is visible today from your location.
You will see that the Moon can be seen in the daytime as well as at night.
Note that the Time Flow Rate is set to \(1 \mathbf{x}\), indicating that time is
running forward at the normal rate. Set the Time Flow Rate to 1 minute and
find the time of moonset at your location. Determine which, if any, of the
following planets are visible tonight: Mercury, Venus, Mars, Jupiter, and
Saturn. Feel free to experiment with Starry Night Enthusiast \({
}^{\mathrm{TM}}\).
Operating Hints: (1) To see the sky from your actual location on Earth, select
Set Home Location ... in the File menu (on a Macintosh, this command is found
under the Starry Night Enthusiast \(5.0\) menu). Click the List tab in the Home
Location dialog box; then select the name of your city or town and click the
Save As Home Location button. You can always return to this starting screen by
clicking the Home button in the toolbar. (2) To change your viewing direction,
move the mouse in the view. When the mouse cursor appears as a little hand,
hold down the mouse button (on a Windows computer, the left button) and drag
the mouse; this action will move the sky and change the gaze direction. (3)
Use the toolbar at the top of the main window to change the time and date
appropriate to the display and to adjust the time flow rate, as explained
above. (4) You can use the Find ... command in the Edit menu or click the Find
tab on the left side of the main view window to open the Find pane to locate
specific planets or stars by name. (5) To learn about any object in the sky,
point the cursor at the object. A panel of information about the chosen object
will appear on the display. The position of this information panel and its
content will depend upon the selected options. These options can be altered
from the Preferences item in the File menu (on a Macintosh, the Preferences
item is under the Starry Night Enthusiast \(5.0\) menu). Select Cursor Tracking
(HUD) in the left-hand edit box in the Preferences dialog. You can then select
the information to be displayed and the position of this information panel.
Another way to get information about an object is to position the mouse cursor
over the object in the main view window and double-click. This will open the
Info side-pane which includes specific information about the chosen object
under several headings. You can expand and collapse the layers beneath these
headings by clicking the + or - icons to the left of the heading label ( and
icons on a Macintosh).
You can find further information about the program and its many modes of
operation in the Starry Night Enthusiast \({ }^{\mathrm{TM}}\) manual (in Starry
Night Enthusiast \({ }^{\mathrm{TM}}\), select User's Guide in the Help menu).
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