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下面是下载地址：
这是一个虚拟天文软件，太阳系行星、彗星、小行星及80个星座等各种天文资料，一应俱全。 Here are the chief characteristics of the software: a database of 2,500,000 stars;
a catalogue of 10,000 nebulae, galaxies and star clusters;
a direction of observation which is easily controlled by a mouse and in real time;
a precise representation of the observable sky from a point on the earth’s surface on a given date;
a 3D interface to give more realism to celestial objects;
a calculation of notable astronomical phenomena visible from an observation point on the earth;
detailed information about each object;
a calculation of the positions of the principal satellites of Mars, Jupiter, Saturn, Uranus and Neptune, of comets and of asteroids;
an outline of the celestial equator, the ecliptic, and a grid of azimuthal and equatorial coordinates;
a 3D outline of the planetary orbits
drives a large range of telescopes
compatible with the seti@home BOINC version
Internet resources are also available:
updated comets and asteroids' elements, querying of DSS (Digitized Sky Survey) servers to obtain a photograph of that portion of the sky being displayed by the program, a notice of the visibility of artificial satellites, etc.
automatic updates;
a program developed entirely in C++
