What is Digg?31 Comments
- bullrassler, on 10/12/2007, -0/+16Nope, distance is estimated by an independent method or methods. Cepheid variable stars have an intrinsic brightness that is correlated with their periodicity. Given period (easy to measure) and knowing intrinsic brightness (measured fairly well from nearby cepheids in the Milky Way), correcting for intervening dust attenuation (not perfect but more than an educated guess), you get a fairly good estimate of distance to any galaxy that you can see individual stars in.
There are other methods that involve brightness of novas or supernovas, distributions of main-sequence stars and so on. - shoelace414, on 10/12/2007, -1/+13Did they get this information from Kevin Sorbo?
- awm4, on 10/12/2007, -1/+10Wow !!!
http://www.space.com/php/multimedia/imagedisplay/img_display.php?pic=070107_andromeda_sky_02.jpg&cap=Andromeda%2C+as+it+looks+if+observed+from+Seattle%2C+WA+at+8+pm+PST+on+Jan.+7%2C+2007.+The+discovery+of+halo+stars+located+far+from+Andromeda%27s+center+suggest+our+nearest+galactic+neighbor+is+much+bigger+than+previously+thought.+Credit%3A+Stellarium+Planetarium%2C+GALAX+team%2C+NASA%2C+Caltech - jivemasta, on 10/12/2007, -0/+6It looks like they found out that what they thought was the edge, wasn't really the edge since they found objects orbiting around past the edge. The problem is, it could be even bigger than they now think it is. What with all the dark matter we can't see yet.
- dosterm, on 10/12/2007, -0/+4@Ulisses
Laid back is either hyphenated or written as one word. "Laid-back or laidback".
"I'm burying every submission with spelling or blatant grammatical errors as inaccurate, do the same and tell idiots who don't bother to proof read the ***** they throw into the system to keep them coming."
You didn't punctuate that sentence properly. The comma after inaccurate should either be a colon or a period. Also, there should be a comma after "same" to separate the clauses.
And, like laid-back, proof read is hyphenated or written as one word. "Proof-read or proofread."
In summary: you suck at your own game. - Hazardc, on 10/12/2007, -1/+5i logged in just to bury ulisses douche of the year comment.
- groverblue, on 10/12/2007, -1/+5Doesn't that change their estimate of it's distance away from us?
- Hazardc, on 10/12/2007, -0/+3It's still amazing how insignificant everything is. even in a "star trek world" where we are known throughout half the galaxy..... we'd still be absolutely insignificant as far as the universe goes... we cant even get out of our own solar system... which is one star among billions in our galaxy, which is possibly among 500 billion to a TRILLION galaxies.
just actually realizing the scope of things makes me sad that i will never see a day that we will truly understand anything. - Haohmaru, on 10/12/2007, -1/+3Look out! It's coming right at us!
- Haohmaru, on 10/12/2007, -2/+4Nah, just become an over-confident cosmologist. Speak in absolutes and sweeping generalizations in order to get funding for your theories.
- M3hul, on 10/12/2007, -2/+4Thanks O' Great Grammar Genie Ulisses for that wonderful play on words.
- extremophile, on 10/12/2007, -0/+2"Bigger than Thought"?
I don't know about this claim.
Thought is pretty big. - ray901, on 10/12/2007, -0/+2not sure if this has been posted before:
http://www.anzwers.org/free/universe/superc.html
nice maps of the universe with some numbers/counts of stars, galaxies etc. thrown in - KHCloud, on 10/12/2007, -0/+2I wonder if this will affect at what speed it will be hurling towards our galaxy. Although we will probably be extinct by then. However I would love to watch this(http://upload.wikimedia.org/wikipedia/en/thumb/2/28/Cartwheelgalaxy.jpg/350px-Cartwheelgalaxy.jpg) in action from heaven.
- Hazardc, on 10/12/2007, -2/+3id love to get "funding" for sitting around making up ***** all day
- somnus, on 10/12/2007, -0/+1@shmoo: Check out the Hubble Ultra Deep Field; it'll be your new favourite NASA photograph ;)
11.9 day exposure looking at galaxies over 18 billion light years away. Thousands of galaxies in an area of space the size of a dime held 75 feet away previously thought to contain nothing O_o - Haohmaru, on 10/12/2007, -0/+1That would definitely reduce the time our galaxies merge to only a few hojillion years.
- shakin, on 10/12/2007, -0/+1"For something that's hurling towards our galaxy at a great speed, we seem pretty laid back about it"
Our galaxy and Andromeda will more than likely pass through each other without much major disturbance. There will probably be zero collisions, but there likely will be some gravitational effect.
Space is more space than stars, planets or rocks. - Haohmaru, on 10/12/2007, -2/+3"...idiots who don't bother to proof read the *****..."
Wow, you're like a poet. You should write that stuff down or something. - Topher06, on 10/12/2007, -0/+1Funny, Andromeda the series 5 times lamer then expected too.
- Haohmaru, on 10/12/2007, -0/+1And here's the video: http://www.youtube.com/watch?v=yEI14zp-aJ0
- MemoryDump, on 10/12/2007, -0/+1*sigh*... and yet some people still believe we are the only ones in this galaxy/universe (intelligent life)
- ChadN, on 10/12/2007, -0/+1FWIW, that computer image comes from Stellarium, available for free on Win/Mac/Linux, and it is awesome.
Everyone owes it to themselves to go out on a clear, dark night, perhaps with a pair of decent binoculars, and look at Andromeda. Use Stellarium to find where it is (its label is M31, and it is nearby Cassiopeia), then go out and look at it.
At about 2 million light years, it is the furthest thing that can be seen with the naked eye, and with binoculars, you will clearly see a spiral galaxy. Highly recommended. - M3hul, on 10/12/2007, -0/+0Nice video, now we need a serious graphics upgrade and it'll be even more visually stunning.
- ChrisGranger, on 10/12/2007, -0/+0@ChadN - while I agree that everyone should take a look at Andromeda if they're able, I'd say most people living in urban areas will see a hazy light oblong 'smudge' rather than a clear spiral galaxy even through large binoculars, if they can find it at all through the light pollution.
- M3hul, on 10/12/2007, -2/+2You would think that they would check up on these things periodically. For something that's hurling towards our galaxy at a great speed, we seem pretty laid back about it... but then again, we probably won't be here.
- PDelahanty, on 10/12/2007, -3/+1"Halo" stars?
...like Master Chief? - Buelldozer, on 10/12/2007, -3/+1LOL!
- virinchi, on 10/12/2007, -7/+0SEARCH FROM MILKY WAY TO THE HEART OF UNIVERSE
1.Presently Cosmology is undergoing REVISION and BIG-BANG,
Dark Matter,DARK ENERGY and Black holes are all under question.
Evolution needs to catch up with creation.
2.NEW-BOOK:SEARCH BEYOND DARK MATTER-IMPORTANT NOTES.
VISION DEVELOPMENT SERIES IN PHASES COVER –
COSMOS YOGA SERIES-I 10^3 LY-Tamasoma Jyothirgamyam
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JUNE 2005 Copy rights USA - Contact Author
3.TO HEART OF THE UNIVERSE
SEARCH HEART: SET MIND and Conscious Planes
Search beyond Dark matter
Want to know beyond Black hole-psychology
want to know Cosmos Expansion
want to know Cosmos-Dazzling Phenomena
A DIWALI Gift or Christmas Lights:
Search COSMOLOGY FROM THE HEART OF THE UNIVERSE
Set your scale at 10 log Years and Center at 5 Log scale Light Years.
Milky way derives Energy from the Heart of The Universe-That is NATURE'S DIVINE FUNCTION.
READ : Vision series-I and Vision series II.
The Dynamic Function is driven from the Heart- See next Vision series III to follow-up.
UTHISTA UTHISTA UTHISTA- RAISE UP the Consciousness beyond FILTRATION OF MINDS ?
QUALIFY FOR WORLD PEACE - YOU ARE DIVINE RECEPTOR.
NOTES: A NEW BOOK under Copy right Application-USA-author Vidyardhi Nanduri
Readers requested to wait for few weeks
4. Background information: Need to revise present mind-set on cosmology
FOR Cosmologists
Cosmic Consciousness to Cosmology Revision : http://www.buymyebook.com/buy/authorinfo.asp?EbookId=200 - Ulisses, on 10/12/2007, -16/+1You would think that people who submit news would check up on how they write. For something that they wish to get into digg's first page, they seem pretty laid back about it... but then again, people have no standards.
I'm burying every submission with spelling or blatant grammatical errors as inaccurate, do the same and tell idiots who don't bother to proof read the ***** they throw into the system to keep them coming.
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