The two largest ever black holes detected.

Discussion in 'The Science Forum' started by Idrach, Dec 6, 2011.

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  1. Two ten-billion solar mass galactic super-massive black holes are discovered. One in NGC3842, a galaxy in the direction of the Leo constellation, the other in NGC 2889, in the direction of Coma Berenices, both somewhat over 300 million light years away.

    Both of these are 50% larger, at least, than the previous largest known, the black hole at the centre of M87 and thousands of times heavier than the black hole at the centre of the Milky Way. The event horizons are calculated to be 200 times the radius of the orbit of Earth - 5 times further than the orbit even of Pluto. Or about 20 billion miles - roughly twice as far as Voyager 1 is now from the Sun.

    Nature paper here.
  2. My calculations say different.
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  3. You've obviously not seen Jarod's balloon knot.
  4. There's one just outside Slough. Huge it is.
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  5. I thought the largest black hole was the civil service pension fund.
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  6. TheIronDuke

    TheIronDuke LE Book Reviewer

    You people have never strolled down Shields Road in Byker. Have you?
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  7. Rusty Lee's front and back bottom.
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  8. Is Big_Bird doing hand-stands in skirts again?
  9. 'NGC 3842' and 'NGC 2889' are rather dull names. How about 'Ciggie' and 'Dashing Chap'?
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  10. How about Bradford and Birmingham?
  11. Just what I was going to say......
  12. Mug

    Mug Clanker

    Sounds about right!
  13. Black holes? Well are they holes or not Iddy baby?
  14. Reminds of a bird I knew in Belize.
  15. It's a name dating back to the 1960s (although the first prediction of them was actually in 1783). Neither black nor hole are correct aspects of the description of the physical objects.