See when a planet is visible from any location, with Planetary, Stellar and Lunar Visibility

Planetary, Lunar, and Stellar Visibility is a free program providing a 3-color diagram that shows when a planet, a star, the moon or the sun was or will be visible during any year from 3000 BC to AD 6000 at any location on the earth. The three colors create a contour map effect and show whether the body is under the horizon (black) and invisible, above the horizon with the sun (light color) and invisible, above the horizon without the sun (shaded color) and so possibly visible.

The times of sunrise and sunset and when the sun reaches specified altitudes above or below the horizon can be shown as curves on the diagrams. By moving the mouse over the diagram, the date and time along with the object’s altitude, azimuth, and magnitude, or the phase of the moon, are displayed. In addition, Planetary, Lunar, and Stellar Visibility computes and tabulates the dates of visibility phenomena: for planets and stars first and last visibility, acronychal rising and cosmical setting; for the moon first and last visibility, and the tables provide much supplementary information. These phenomena are very useful for historical purposes.

The settings for computations may be saved, the graphics may be saved, pasted into documents, and printed, and the tables for visibility phenomena may be accumulated, edited, printed, and saved as .rtf files or HTML files to be pasted into documents and printed.

* Check also Full Moon Desktop Gadget.

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