Aldebaran

Описание к видео Aldebaran

Aldebaran is an orange giant K5III star, 65 light years away in the constellation of Taurus. It has a diameter of 61 million kilometer, 44.2 times the diameter of the Sun and it shines 425 times brighter.
It has exhausted the hydrogen fuel in its core. The hydrogen fusion in a shell around the helium core expanded the star to its current size.
At the beginning of the video you can see the constellation of Orion (below left).
Aldebaran is easy to find in the night sky: Just follow the three stars of Orion's belt from left to right (in the Northern Hemisphere) or right to left (in the Southern), the first bright star you encounter is Aldebaran. As far as we know so far, Aldebaran has no planetary system. However, in Space Engine there is one.
In de video you can see several planets circling around Aldebaran. One of them and the closest to the star is Aldebaran one. It's a planet about the size of the Earth, very close to Aldebaran, with a thin atmosphere that is leaking away into space, caused by the pressure of the solar wind. You can see a blue gas-tail and a white dust-tail in different angles, like a comet.
One of the other planets is a big gas-giant (like Jupiter) with a lot of moons circling around it. One of many nice things about a simulation like Space Engine is that you can speed up time and put everything in motion.
The simulation can also make things visible that you can't see normally because of the brightness of the star.
Of course, the planetary system is fantasy but it shows how it might look like.
Enjoy watching!

http://en.wikipedia.org/wiki/Aldebaran
http://en.wikipedia.org/wiki/Comet_tail
http://en.wikipedia.org/wiki/Gas_giant

Made with: Space Engine
Music by: AstroPilot - In The Middle

Interesting sites:
http://en.spaceengine.org/

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