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A comprehensive astronomy / space / satellite-tracking package. It allows you to view: An earth map, showing day and night regions, location of the Moon and current phase, and position of a selected earth satellite. Panel showing positions of planets and a selected asteroid or comet, both geocentric and from the observer`s location. A sky map, based on either the Yale Bright Star Catalogue or the 256,000 star SAO catalogue, including rendering of spectral types, planets, earth satellites, asteroids and comets. Databases of the orbital elements of 5632 asteroids and principal periodic comets are included, allowing selection of any for tracking. A telescope window which can be aimed by clicking in the sky map or telescope itself, by entering coordinates, or by selecting an object in the Object Catalogue. And more and more and more...
Home Planet for Windows Home Planet Release 3.1 home planetarium planet astronomy orrery
Software:
Planet`s Visibility
Freeware Author:
Rainer Lange
v. 1.2
presents a deceptively simple 3-color graph that tells, at-a-glance, when a planet (or moon, sun) is visible from your location. The vertical axis marks the months of the selected year, with the horizontal axis marking the 24 hours of the day (in local time). The three colors create a contour map effect and identify when the selected object is visible, not visible, or `eclipsed` by the sun. A fixed crosshair identifies the current date and time. By moving the mouse over the graph area, the date and time, as well as the objects altitude, azimuth, and magnitude (or the phase of the moon if the moon is selected) are displayed.
This is an accurate digital orrery with a wealth of functionality. Orbits uses time-dependent orbital elements for the calculation of planetary positions (except for Pluto). Good accuracy is thus obtained for the time range of +/- 4000 years. The most noteworthy functions are date specification (past, future), 3D orbital animation and custom zoom, orbits of 7000+ asteroids, and statistic and information windows. Free Astronomy SoftwareAstronomy Freeware.
