back to article Dwarf galaxy yields up middle-sized black hole

Astronomers using the Hubble Space Telescope to confirm X-ray observations first published in 2009 have turned up the first observational evidence of mid-sized black holes. That’s not as straightforward as it sounds. As Sydney University-based astronomer Dr Sean Farrell explained to The Register, the midrange black hole has …


This topic is closed for new posts.
  1. AndrewG

    290 Light Years Distant?

    I don't think so

    1. AndrewG

      Re: 290 Light Years Distant?

      290 MILLION Light years would be more like it

      1. Richard Chirgwin (Written by Reg staff)

        Re: Re: 290 Light Years Distant?

        Thanks everybody, the word "million" has been added.


        1. Tom Maddox Silver badge

          Re: Re: 290 Light Years Distant?

          I just a whole galaxy. The whole thing!

  2. Martin Huizing

    "Dwarf galaxy yields up middle-sized black hole "

    Anything to make humankind less small and insignificant... Can't beat my ego, though ;)

  3. slevy
    Thumb Up

    reference appreciated

    Thanks for including the reference to the original article, for those seeking more details!

  4. Winkypop Silver badge
    Thumb Up

    Who needs the Wooooo?

    When you've got Science!

  5. Rentaguru

    intermediate - one of those weasel words used to suggest something really baaaaad is nice n fluffy

  6. Anonymous Coward
    Anonymous Coward

    290 million Light Years so that's something like 88853545.071 Parsecs away !

    if you cant get your head to imagine that then try this x 2.9

    Zoom 100 Million Light Years From Earth

    i always find this seems to get the point across

    You don't even know what "big" is

    tap tap testing is it working

    1. Ragarath

      Those are good but..

      This is my favourite and it's interactive.

    2. Crisp

      To quote Douglas Adams

      Space is really big.

    3. Bongwater

      Parsecs? That's small!

      I jog 5 megaparsecs a day!

      Ok I lied, I didn't.

  7. Anonymous Coward
    Anonymous Coward

    so Dr Farrell what size do you estimate/guess this intermediate black hole to be today compared to say "Betelgeuse" ;) oops i mean

    or even "VY Canis Majoris" Largest star ever discovered

    1. DB_lanky

      What do you mean by "size"? Black holes are a technically a singularity point, so size isn't really definable! Unless you mean the event horizon? which is about 60000km for this black hole, which is pretty small compared to both stars you mentioned. In terms of mass though this black hole weighs in ~1000 times heavier than Betelgeuse and ~500 times that of VY Canis Majoris.

      1. Anonymous Coward
        Anonymous Coward

        thanks db, in this context, the mass makes far more sense to get an imaginable visual scale in your head than ~60,000 miles/96,560.64 km or so of the event horizon.

This topic is closed for new posts.

Other stories you might like

Biting the hand that feeds IT © 1998–2022