The winter sky is a fantastic place to test our new astronomy telescopes. Here are a few definitions to get eager star gazers off to a shooting star start!
Asteroids – Thousands upon thousands of lumps of rock orbit the area between Jupiter and Mars. Occasionally, some break free and can pass very close to earth.
Binary – This is an incredible sight to glimpse through astronomy telescopes. The naked eye sees one large star, however telescopes can reveal the true nature of binary stars, which are actually two stars orbiting each other – magnificent to behold!
Galaxy – The Milky Way is a galaxy, and contains around 100,000 million stars.
Light Year – A measure of distance (not time) The speed of light is slightly shy of 187,000 miles per second, making one light year around 6 billion miles.
Meteoroid – Any bit of space detritus that’s free from an orbit and flying through space. If a meteoroid enters the earth’s atmosphere it’s then defined as a meteorite. Millions enter the earth’s atmosphere annually; however, very few survive the journey to the surface.
Satellite – Any celestial object orbiting a larger object is a satellite. The moon is earth’s satellite. The earth is a satellite of the sun.
Star – A luminous ball powered by nuclear fusion. The surface temperature of stars ranges roughly between 3,000°C to 50,000°C
White Dwarf – The tiny remains of a once massive star; the matter of which has collapsed in on itself so much, a spoonful would weight many tonnes.
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