Interesting Facts About Stars

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The Hubble Space Telescope
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Veil Nebula
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Supernova
  • 1.There are approximately 200-400 billion stars in our Milky Way Galaxy alone.
  • 2.After the sun in our solar system, the nearest star to Earth is Proxima Centauri. It is about 39.9 trillion km away or 4.2 light years. This means it takes light from this star 4.2 years to reach Earth. Using the newest, fastest space probe propulsion systems would still take a space craft about 75 000 tears to get there.
  • 3.Each galaxy contains hundreds of billions of stars and there is estimated to be over 100 billion galaxies in the universe. So the total number of stars in the universe in blowing, estimated to be at least 70 sextillion and possibly as high as 300 sextillion, that’s 300 000 000 000 000 000 000 000 000 stars.
  • 4.Stars do not actually twinkle. They only appear to twinkle due to turbulences in the Earth’s atmosphere deflecting the light that reaches our eyes.
  • 5.The light from stars takes millions of years to reach Earth, therefore when you look at the stars, you are literally looking back in time.
  • 6.The stars have played a very important role throughout human history. They have formed part of religious practices, been grouped into constellation, used in astrology star signs, helped to design calendars and were very important navigational tools for early explorations across land and seas.
  • 7.If a star is big enough, after it goes supernova it can actually turn into a massive, gravity and light eating black hole
  • 8.VY Canis Majoris is the largest known star in our galaxy, if this star was in the center of our solar system its outer atmosphere would reach the orbit of Saturn.
  • 9.The lifespan of our own star, the Sun, is around 10 billion years.
  • 10.There is a maximum of 2,500 stars visible to the naked eye at any one time in the night sky.

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