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Saturday, January 31, 2009

Our Solar System & VV Cephei

We have been studying our Solar System in school. If you think Earth is big, this chart is going to blowwww your mind (click on the chart below to see it bigger--the orange ball on the third line is our Sun the tan ball, to the left, on that same line is Jupiter):


That is a comparison of objects in the Universe (or maybe just the Milky Way) starting with the planets in our Solar System and ending with VV Cephei, the largest star known. It is a red supergiant star. This star is a whopping 1,900 times the Sun's diameter and 315,000 more luminous. If VV Cephei were in the place of our Sun, it would extend beyond the orbit of Jupiter.

But if you thought that was big, it is but a mere speck of dust in the Milky Way. Which just one of numerous galaxies in space. Ouch, my head hurts!