Comets

 


A side by side comparison of Starry Night (left) and a photo of Comet Hyakutake by Nick Martin (right) as put together by Leigh Palmer

These ethereal travelers are some of the most beautiful objects to view, if you're lucky enough to see one. Comets, composed primarily of ices and rocky matter, travel around the sun in highly elliptical orbits. As they approach the inner Solar System, this material heats up and is blown off by solar radiation, forming a tail. Because it is formed by this solar wind, the tail always points away from the Sun. As a result, comets speed out of the inner solar system tail-first.

Comets can be toggled on and off via the Display menu or palette.


Comet Options

To change the manner in which comets are shown in Starry Night open the Options dialog by selecting "Options..." from the Settings menu, then pick "Comets" from the popup menu. Alternatively, click the options button for Comets in the Display palette.

Show Comets: By default, comets are shown. To turn off comets, uncheck the box.

Less Detail While Scrolling: To improve performance, you can check this box so that comet detail is lowered while scrolling.

Labels: You can use these popup menus to change the font and font size of comet names, and the color in which they are displayed.

Quality: This popup menu allows you to select the degree in which a comet is rendered. To improve performance on slower computers, you may wish to try switching to "draft" or "better" quality images.

Slider Control: The slider control lets you adjust the brightness of comet tails. Due to the eternally optimistic attitude of Sienna Software, we have made every comet a bright comet.

  • Note: In 256 colors, this slider is disabled. However, you can adjust the brightness somewhat by switching between "draft", "better", and "best".


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Page last modified on: January 25, 1999