GraphDark

GraphDark 2.5

Free
Calculate the time of visibility of astronomical object at a specific location
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GraphDark can calculate the time when an astronomical object will be visible from your location and whether moonlight, twilight, or low haze will affect the view. The visibility of a single object, such as a comet, can be shown over a period of months or years. GraphDark can also list all the objects that are visible on a single night.

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