Beta
×

Welcome to the Slashdot Beta site -- learn more here. Use the link in the footer or click here to return to the Classic version of Slashdot.

Thank you!

Before you choose to head back to the Classic look of the site, we'd appreciate it if you share your thoughts on the Beta; your feedback is what drives our ongoing development.

Beta is different and we value you taking the time to try it out. Please take a look at the changes we've made in Beta and  learn more about it. Thanks for reading, and for making the site better!

Largest-Known Spiral Galaxy Discovered

samzenpus posted about a year and a half ago | from the biggest-there-is dept.

Space 27

littlesparkvt writes "The spectacular barred spiral galaxy NGC 6872 has ranked among the biggest stellar systems for decades. Now a team of astronomers from the United States, Chile and Brazil has crowned it the largest-known spiral galaxy, based on archival data from NASA's Galaxy Evolution Explorer (GALEX) mission."

cancel ×

27 comments

Sorry! There are no comments related to the filter you selected.

Frist (-1)

mrbester (200927) | about a year and a half ago | (#42555355)

Post!

Never had this chance before in all the years I've been here.

Re:Frist (-1)

Anonymous Coward | about a year and a half ago | (#42557025)

Really? I get in a frosty piss at least once a week.

So where's the antispiral? (0)

Anonymous Coward | about a year and a half ago | (#42555407)

Seriously, their home planet's got to be somewhere nearby. We're in for a good show!

Re:So where's the antispiral? (0)

Anonymous Coward | about a year and a half ago | (#42557149)

Considering that the antispiral ended up just being a really big spiral, this might be it.

Long Galaxy is Long. (4, Funny)

VortexCortex (1117377) | about a year and a half ago | (#42555411)

Link to more Nasa's images. [nasa.gov]
TFA says the elongated shape is likely do to interaction with a neighboring galaxy, which may have also spawned a nearby dwarf galaxy; Both visible primarily thanks to the ultraviolet instrumentation.

The tidal dwarf candidate is brighter in the ultraviolet than other
regions of the galaxy, a sign it bears a rich supply of hot young
stars less than 200 million years old.

Hmm, Sounds about like Hollywood...

Largest = longest (4, Informative)

EdgePenguin (2646733) | about a year and a half ago | (#42555441)

To clarify, this does not mean the most massive spiral galaxy found, it means the longest.

Re:Largest = longest (1)

Anonymous Coward | about a year and a half ago | (#42555851)

Also, this does not mean the largest quasar, but spiral galaxy.

Re:Largest = longest (1)

Striikerr (798526) | about a year and a half ago | (#42558165)

Well, I think that girth tends to matter more than length..

Re:Largest = longest (1)

HornWumpus (783565) | about a year and a half ago | (#42562685)

TMI. We don't care what you look for in a man.

Thinking about the scale of the universe and... (0)

Anonymous Coward | about a year and a half ago | (#42555469)

JESUS CHRIST that's huge!!!

Re:Thinking about the scale of the universe and... (1, Funny)

Forty Two Tenfold (1134125) | about a year and a half ago | (#42555541)

That's what she said!

Re:Thinking about the scale of the universe and... (1)

Anonymous Coward | about a year and a half ago | (#42555615)

Sadly, she was looking out the window when she said it.

Largest known... (3)

skandalfo (623756) | about a year and a half ago | (#42555563)

Now just don't bother me until they discover an UNKNOWN one.

Re:Largest known... (1)

arth1 (260657) | about a year and a half ago | (#42558001)

Yeah, neither the submitter nor the editor can have much interest in astronomy, or they'd known that this galaxy wasn't discovered now.
Just the NGC number being this low should have alerted them.

For what it's worth, it was discovered by John F. W. Herschel in 1835 (Herschel catalog number 3816), and there are dozens of publications about it over the years.

Re:Largest known... (0)

Anonymous Coward | about a year and a half ago | (#42560779)

Great... When there is a headline more like, "Largest spiral galaxy discovered," we get people complaining that it can't be the largest galaxy in the universe because astronomers have only looked at a small fraction of them. When the word "know" is explicitly included instead of implied, we now get people complaining about that too. Damned if you do, and damned if you don't.

Only a spiral (4, Informative)

Jeremy Erwin (2054) | about a year and a half ago | (#42555667)

The largest known elliptical galaxy IC 1101 [wikipedia.org] has a diameter of 6 million light years.

Re:Only a spiral (1)

feedayeen (1322473) | about a year and a half ago | (#42556339)

To be fair, IC 1101 is disturbed due to all of the collisions by those little galaxies the size of the Milky Way colliding into it.

Re:Only a spiral (1)

Anonymous Coward | about a year and a half ago | (#42556349)

The giant elliptical galaxies probably form from mergers of spiral galaxies (gravitational interactions smear out all the nice spiral patterns, and you're left with a featureless blob), so it's not surprising that the largest elliptical is larger than the largest spiral.

Largest-Known Spiral Galaxy Discovered (2)

grep -v '.*' * (780312) | about a year and a half ago | (#42555761)

Yeah, right. What'll they say when they find out what's really out there is a giant fun-house convex mirror pointing right back at our galaxy?

THEN we'll finally get around to losing that weight that the galaxy's put on.

Quickly, get the news out (4, Interesting)

bytesex (112972) | about a year and a half ago | (#42555825)

Re:Quickly, get the news out (0)

Anonymous Coward | about a year and a half ago | (#42557277)

That is indeed cool news!
Now the question: is this an actual structure (i.e., gravitationally bonded together), or is it merely the appearance of one?
My astrophysics isn't quite up to scratch for getting this from The Fine Article [oxfordjournals.org] in a quick glance.

Re:Quickly, get the news out (1)

BigBunion (2578693) | about a year and a half ago | (#42557435)

"'Even travelling at the speed of light, it would take 4 billion light years to cross"

...

In a press release from The Royal Astronomical Society??? facepalm...

Re:Quickly, get the news out (1)

Punko (784684) | about a year and a half ago | (#42558673)

On the upside, if you were the observer travelling at the speed of light, it would not seem like 4 Billion years to travel.

ni66a (-1)

Anonymous Coward | about a year and a half ago | (#42555997)

Upper limit on size? (1)

czarv10 (1804556) | about a year and a half ago | (#42557661)

Does anyone know if there's an upper limit on the size of a spiral? It would have to be limited by the size of it's dark matter halo, correct? Had a brief stint in cosmology in grad school, still find this stuff cool.

Image Quality (1)

mk1004 (2488060) | about a year and a half ago | (#42562945)

I know this is a composite image, but there's some seriously crappy editing in the upper-left quadrant of the image. Still, cool stuff.

Horribly formatted article (1)

Daniel Klugh (1935646) | about a year and a half ago | (#42572681)

What's with all of the hard line breaks in the original article? I end up with the last word (or so) of every sentence on a line by itself. They put a <BR> at the end of every physical line of the source HTML.
Check for New Comments
Slashdot Login

Need an Account?

Forgot your password?

Submission Text Formatting Tips

We support a small subset of HTML, namely these tags:

  • b
  • i
  • p
  • br
  • a
  • ol
  • ul
  • li
  • dl
  • dt
  • dd
  • em
  • strong
  • tt
  • blockquote
  • div
  • quote
  • ecode

"ecode" can be used for code snippets, for example:

<ecode>    while(1) { do_something(); } </ecode>