Sister blog of Physicists of the Caribbean. Shorter, more focused posts specialising in astronomy and data visualisation.

Thursday, 3 March 2016

The ALFALFA Sky II : The Thrilling Sequel

Got my colour issues all sorted. For those who missed the earlier posts, this shows the visible light component of 22,935 galaxies from the ALFALFA hydrogen survey - using the actual image of each galaxy, from the Sloan Digital Sky Survey. Galaxy sizes have been exaggerated by a factor of forty (not five as I earlier reported). More detail in the link below... it's a post from 2013, but I've updated it to include the new data/techniques. The previous version had a poxy 11,710 galaxies, so this one is like, waaay better.

Go straight to the full HD video here, partly in 3D if you've got any red-blue glasses hanging about :


at
Labels:

2 comments:

  1. Bryce Alexander3 March 2016 at 17:46

    Wow, great job!
    Made me wonder just how fast you would have to travel to actually get that perspective.

    ReplyDelete
  2. Rhys Taylor3 March 2016 at 20:07

    Thanks Bryce Alexander !
    About 1.3 million light years per second... or about 40 trillion times the speed of light. :)

    ReplyDelete

Subscribe to: Post Comments (Atom)

Giants in the deep

Here's a fun little paper  about hunting the gassiest galaxies in the Universe. I have to admit that FAST is delivering some very impres...

  • Proving a negative is perfectly possible
    Of course you can prove a negative. In one sense this can be the easiest thing in the world : your theory predicts something which doesn...
  • "I'm not a scientist, but..."
    Why Philosophy Matters for Science : A Worked Example "Fox News host Chris Wallace pushed Republican presidential candidate to expand...
  • Death of the Flying Snakes
    In the last batch of simulations, we dropped a long gas stream into the gravitational potential of a cluster to see if it would get torn...