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Hubble Deep Field

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The image, called the Hubble Deep Field (HDF), was assembled from 342 separate exposures taken with the Wide Field and Planetary Camera 2 (WFPC2) for ten consecutive days between December 18 and 28, 1995.Representing a narrow "keyhole" view stretching to the visible horizon of the universe, the HDF image covers a speck of the sky only about the width of a dime located 75 feet away. Though the field is a very small sample of the heavens, it is considered representative of the typical distribution of galaxies in space because the universe, statistically, looks largely the same in all directions. Gazing into this small field, Hubble uncovered a bewildering assortment of at least 1,500 galaxies at various stages of evolution.Nearly a year of preparation preceded the observation. The HDF team selected a piece of sky near the handle of the Big Dipper (part of the northern circumpolar constellation Ursa Major, the Great Bear). The field is far from the plane of our Galaxy and so is "uncluttered" of nearby objects, such as foreground stars. The field provides a "peephole" out of the galaxy that allows for a clear view all the way to the horizon of the universe.Test exposures made in early 1995 with Hubble and the 4-meter telescope at Kitt Peak National Observatory also confirmed the field is devoid of large galaxy clusters, which would interfere with seeing farther and fainter objects. The target field is, by necessity, in the continuous viewing zone (CVZ) of Hubble's orbit, a special region where Hubble can view the sky without being blocked by Earth or interference from the Sun or Moon. The most common type of galaxy in the universe are (or 'were') small irregular objects called blue dwarfs. However, they were edited out.Produced by astronomers at the State University of New York at Stony Brook.Google: Hubble Deep Field Video Tape- A Journey Through Time and Space

Channel: Howto & Style
Uploaded: November 30, 1999 at 12:00 am
Author: sxi

Length: 04:30
Rating: 4.72
Views: 55994

Tags: Deep  Field  Hubble  

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Video Comments

Bovoldian (November 30, 1999 at 12:00 am)
Well, not necessarily. If the universe expanded all from one point then the light from these, now distant, objects would have been reaching us at regular intervals, although they would be slowly increasing intervals. So the images we are seeing could be that of objects which aren't the same age as their distance in light years. If the images were as old as the distance, 78 Billion light years, then the universe would not be the scientifically excepted age, about 15-20 billion years.
sawbonesadams (November 30, 1999 at 12:00 am)
We need to reclaim our night sky and fight light pollution. I miss looking up and feeling insignificant.
NewDescartes (November 30, 1999 at 12:00 am)
That's why we need to get rid of money.
sammygee17 (November 30, 1999 at 12:00 am)
the moon landings were only about international arrogance by the USA and USSR. if the cold war didn't take place, there would've been no moon landing. personally, space exploration is great, but i think there are better things to spend money on (education, healthcare etc)
sammygee17 (November 30, 1999 at 12:00 am)
yep. its a picture of the early universe
IneptTroopr (November 30, 1999 at 12:00 am)
Not to mention that dye to the immense distance, what we are seeing is how they were hundreds of millions or billions of years ago. So who knows how many more stars have been formed, galaxies merged, etc. in that time.
sammygee17 (November 30, 1999 at 12:00 am)
ohhhh man, im so high ... wanna get high ?
LennyTheLeper (November 30, 1999 at 12:00 am)
You're right, it's all about money and profit. I mean... I think it's ridiculous that in all this time we have yet to send another person to the Moon. And we haven't even put a man on Mars yet. It seems the space industry isn't moving forwards at all. It's time we took ANOTHER "giant leap for mankind" and actually did something...
LtStarkiller (November 30, 1999 at 12:00 am)
Lenny, unfortunatley not in our lifetime. I'd love to know how far we get. Although there is a singularity for our technological growth. It will happen so quickly that we might bypass the whole need for exploration. That is, if we don't destroy ourselves, which I find much more likely than a manned mission to Mars.
wesleyjames81 (November 30, 1999 at 12:00 am)
you have to imagine that if it was possible to leave our solar system time and space would become completely different, maybe from an outside view our solar system would be traveling @ great speeds on one of the great spiral arms of our galaxy and we might not be able to catch up to it again. I think there is great things going on outside our solar system we cant begin to understand, also where there is no financial profit in space exploratin you can bet that we wont be reaching it anytime soon.

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