Zon Mosaic Pro5 User's Guide download pdf (Page 107)

Bending Space & Time 107

See “Tool Selection Control” on page 30

for more information on choosing tools in

Starry Night Pro and Pro Plus.

Tip: Hold down the SHIFT key on the

keyboard to change to the Location

Scroller tool.

If you are using the Location Scroller tool

and you click and drag the cursor, your

latitude or longitude will change, instead

of your viewing direction. Dragging up or

down adjusts your latitude, while dragging

left or right adjusts your longitude.

Recall that when you use the Elevation

buttons to blast off a planet’s surface, you

are still attached to the planet by an

invisible pole. Imagine that this pole

originates at the planet’s centre. Using the

Location Scroller to change your location

is like changing the direction of this pole,

so that it now protrudes from the planet’s

surface in a different spot. You are still at

the same elevation, but looking down on a

different part of the planet’s surface. The

planet appears to turn beneath you. This

allows you to achieve fantastic views of

the planets and solar system. For instance,

you can hover a few thousand miles off the

surface of Saturn, then use the Location

Scroller tool to turn the planet and view

the rings from every angle. The Location

Scroller can help you gain a real sense of

the three-dimensional relationships

between the objects in our solar system.

Example: Viewing The Surface of

Earth

1 Use the Increase Elevation button to

blast off Earth’s surface until the entire

globe can be seen onscreen (an elevation

of between 6000 and 10 000 km).

2Right-click (

Ctrl-click on the Mac) on

Earth and choose

Centre from the

contextual menu that pops up.

3 Click and drag the cursor from the

centre of the screen to the left side. This

will move you eastward across Earth’s

surface.

4 Continue clicking and dragging the

cursor from the centre of the screen to the

left side. Eventually you will pass over the

entire surface of the planet. You can see

which parts of Earth are in sunlight, and

which parts are in shadow.

5 Now click and drag the cursor from the

centre of the screen to the top of the

screen. This will move you southward

across Earth’s surface, eventually allowing

you to see Antarctica. You can also click

and drag the cursor from the centre of the

screen to the bottom to eventually see the

Arctic.

6 Return home by presssing the Home

button on the tool bar, opening the

Options menu and clicking on the name of

your home city.

Location Mode

So far, you have learned how to view from

anywhere on a planet’s surface, and how to

view from any height above a planet’s

surface. In these situations, you are “tied”

to the planet, rotating in space as the planet

does. Starry Night also offers several

location modes where you are not tied to a

planet’s rotation. You can access these

modes by opening the Viewing Location

dialog box. The “View From” dropbox in

the top left corner of this dialog box offers

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