ASTRIAL
The discs for the Star Theatre home planetarium let you travel to many different parts of the universe from the comfort of your own home!
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SEGA TOYS DISC FOR STAR THEATER - NEBULAE
The discs for the Star Theatre home planetarium let you travel to many different parts of the universe from the comfort of your own home!
Nebulae
Nebula is Latin and means “cloud” or “fog”. Nebulae are interstellar clouds of dust, hydrogen, helium and other ionized gases. They are usually very big, up to hundreds of light years in diameter. The Orion Nebula is the brightest nebula in the sky. It occupies a region twice as big as the Moon. It can be seen by the naked eye but early astronomers have missed it because of the low brightness. Interestingly, if viewed from closer by, a nebula appears larger but not brighter.
While there is more material in a nebular than in the space surrounding them, they are still made up of very few atoms. A nebula of the size of the Earth only weights a few kilograms and its density is by magnitudes lower than any man-made vacuum on Earth.
The nebulas shown are known as ESO 378-1, Ring Nebula (M57), Crab nebula (NGC 1952), NGC 6543, Saturn Nebula (NGC 7009), Toby Jug Nebula (IC 2220), RCW 49 and the Orion A molecular cloud consisting of M42, M43, NGC 1980, NGC 1981, L1641, OMC-1, OMC-2, OMC-3 and OMC-4.