View the Universe in different wavelengths

http://astrog80.astro.cf.ac.uk/Planck/Chromoscope/

by stargazer-3 • 13 years ago

114 28 13 years ago

astrog80.astro.cf.ac.uk

abcd_f2• 13 years ago

Nice, but that's not the Universe. It's just a galaxy.

stargazer-34• 13 years ago

It is the Universe from our point of view. All the observations span through an entire sky, which makes it the map of the Universe.

astrodust2• 13 years ago

It's zero percent of the universe when you take into account the finite amount of space we can see over the infinite amount of space there actually is.

It's still pretty damned amazing for an infinitesimally small part of the universe.

samwillis2• 13 years ago

No, it is the view of the 'visible' universe from earth. Most of the band through the middle is the milky way but the rest is elsewhere in the universe.

abcd_f2• 13 years ago

My bad, indeed. I have this as my wallpaper I misremembered it for another image (of a specific galaxy).

stock_toaster2• 13 years ago

I wonder what those "rainbow" like lines are that show up from 30 to 70GHz.

tomelders2• 13 years ago

I'm curious too.

I wonder if it's some kind of lens flare, if such a thing is possible when taking these kinds of images.

callus• 13 years ago

That really is an intriguing phenomena.

samwillis2• 13 years ago

I suspect it is to do with the stitching of various images together. As the Earth is in the way if you try to take a picture of the universe from one point, they would have had to stitch multiple images together taken from either side of the Earth. You sometimes get a similar effect when you stitch together spherical photos and then rotate the view to a slightly odd angle relative to the original shots.

tomelders2• 13 years ago

I asked Reddit, and someone provided the following answer

http://www.reddit.com/r/askscience/comments/1dbyaz/what_are_...

stock_toaster2• 13 years ago

neat. Thanks!

zokier• 13 years ago

How are the colors mapped? For me it would make sense that the areas that appear blue lower frequencies would shift to red as you go to higher frequencies, but that is not what happens.

claudius• 13 years ago

I would expect that to be intensity at that particular wavelength, so there is no reason why it should shift from blue to red.

nadam• 13 years ago

I wonder why did they put the visible spectrum on the lower end of the scale despite its frequency is higher than the upper end of the scale (it is 400-700 THZ).

rlpb• 13 years ago

The clue is in the title of the HN post. A lower frequency is a longer wavelength, and vice versa.

neonhomer• 13 years ago

So is this what geordi la forge saw on star trek next generation?

jere• 13 years ago

The two highest frequencies (not including visible) are amazingly beautiful. Almost like a painting of a storm at sea. I would really like a poster of that.

JonnieCache• 13 years ago

I've always wanted a beachball printed with the cosmic microwave background, ever since I saw a cosmologist playing with one in a documentary. So far I've been unable to find anyone to sell me one.

david4096• 13 years ago

Similar: http://www.chromoscope.net/

kaoD• 13 years ago

Curiously enough, you can see the arc structures (mentioned in https://news.ycombinator.com/item?id=5626679) as two giant rips in the X-ray layer.

jpdoctor• 13 years ago

Awsome. Anyone know what the arc structure is at 70GHz? I'm guessing artifact, but would love to know.

temp453463343• 13 years ago

It's also one of the lowest res frequencies.

nialo• 13 years ago

I don't know what it is, but it's actually visible at everything below 100GHz, for whatever that is worth.

stargazer-34• 13 years ago

I may be wrong here, but they could be the observations blocked by the Sun, with that arc being the Sun's track on a sky.

stargazer-34• 13 years ago

I'll add up to my comment: the other wavelengths have the arc shifted, which would mean that the observation is performed from a different location or (more likely) at a different time of the year.

sytelus• 13 years ago

Why galaxy disc width blows up between 217GHz to 353GHz? It look there is far more invisible matter(?) around galazy when you move to 857GHz.

View the Universe in different wavelengths

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