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Favorite Fact

Jazzy

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Jun 27, 2016
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#1
What's your favorite fact about space?

Mine:
The Big Dipper is not a constellation
637px-ursa-major-constellation-map-tm.jpg
Fact: The Big Dipper is not a constellation, it is an asterism


Many people consider the big dipper to be a constellation but, in fact, it is an asterism. An asterism is a pattern of stars in the sky which is not one of the official 88 constellations; they are also composed of stars which are not physically related to each other and can be vast distances apart. An asterism can be composed of stars from one or more constellations – in the case of the Big Dipper, it is composed entirely of the seven brightest stars in the Ursa Major (Great Bear) constellation.
 

Worldwide

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Ireland
#4
That as we sit here not only is our planet rotating at 1,000 miles per hour, and the earth orbits the sun at 18 miles per second, but ... (And this is what blows my mind) also our sun is orbiting the centre of the Milky Way at a speed of 500,000 miles per hour .. That's 12,500 miles every 90 seconds .. Our whole solar system ...
We right now are spinning and rotating and hurling through space as we sit still ...
 
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