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StarDome PLUS: Earth map
The Earth Map shows the portions of our planet in darkness and in daylight at the selected date and time. Flashing red indicators show the observing location currently set in StarDome PLUS and the point on Earth where the Sun lies directly overhead (the subsolar point.)
If a solar eclipse is in progress, a flashing indicator will indicate the eclipse center. The map will show the eclipse shadow wherever the Sun is more than 80 percent eclipsed. Text below the map will indicate the eclipse type.
You can use event and time functions to explore and animate eclipses. The event control will bring you to the point of maximum eclipse, when the shadow axis passes closest to Earth's center. Use the time controls to step forward and backward through the event.
Location, location, location. You can use the map to quickly change your viewing location. Just click on the map. You'll be prompted to verify that you want to change your observing location to the coordinates displayed.
Selecting yes will execute the change, but please note, it will not update your time zone. You can do this manually using the time zone dropdown list in the Location Settings panel.
By clicking the Subsolar Point button under the Options panel, you can immediately change your observing site to the point on the globe where the Sun is directly overhead.
The Greatest Eclipse button becomes activiated when an eclipse is ongoing. Pressing this button changes your location to the point on Earth where the Sun is most eclipsed at that moment.
Options. By default, all display options are toggled on when StarDome PLUS starts. You may turn off: the nighttime portion of the display; rendering of eclipse shadows; and location markers. |
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