Friday, January 27, 2017

SkyLive

cool!
enter your location anywhere in the world--provided there isn't light pollution such that you can't see the night sky; then, click on "night guide".

TheSkyLive: The Solar System at your Fingertips



Because of its size, only stars in our Milky Way galaxy can be seen with the naked eye. Andromeda, the closest galaxy to our Milky Way, is 2.2 million light years away. If you can locate it in the night sky, then it appears to be faint and relatively dim. 

Because of their distances in our own galaxy, stars appear to be fixed. Alpha Centauri, the closest star to us, is 4.37 light years, or 25.689 trillion (25,689,044,169,700) miles, from us, making the 93 million miles from us to the sun look like a walk in the park.

Because we are moving, spinning and rotating around the sun, the position of the stars relative to us changes. 

The moon, planets in our solar system and satellites, and asteroids and comets when they enter our solar system, because they are relatively close to us and moving, move across the night sky relative to the relatively-fixed stars.  

With TheLiveSky you can track the planets and other celestial and man-made objects (satellites) from your location.



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