Windows
Free
GraphDark 2.5
Calculate the time of visibility of astronomical object at a specific location
Latest version
2.5
Developer
Richard Fleet
Program info
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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