James Webb Space Telescope 28 Januari 2011
Posted by azmirul in Astronomy, Link menarik.
Tags: infrared telescope, James Webb Space Telescope
apa yang best sangat telescope James Webb Space yang dijangka dilancarkan di orbit pada 2014/15 berbanding hubble telescope? telescope ini akan mencerap infrared… ni macam kita dalam kegelapan malam mendapat “night vision goggle”… heher, insyaallah akan lebih banyak objek dapat dilihat… biar gambar berikut menunjukkannya:
Two alternate Hubble Space Telescope views of the Carina Nebula, comparing visible (top) and infrared (bottom) astronomy -- Wikipedia
image yang dijangka diambil oleh telescope ini:
A simulation of JWST's performance. This shows a "typical" JWST image, based on the expected density of sources of different types, and the predicted JWST performance. It is a false-color image, since the JWST observes in the infrared. --Wikipedia
cerita asal: gizmodo, via NASA
For more info, click
Every time we point a telescope at the sky we’re looking into the past. This chart shows how far we can go. Right now, Hubble’s Ultra Deep Field IR can see as far as 480 million years after the Big Bang.
The James Webb Space Telescope will allow us to see 200 million years after the Big Bang. In a cosmic scale, that’s almost like looking at the beginning of all this starstuff we call the Universe. I wonder if we will ever be able to get to the point of watching the Big Bang itself. If that can be watched, anyway.
The James Webb Space Telescope (JWST) is a planned infrared space observatory and is the scientific successor to the Hubble Space Telescope. The JWST or Webb Telescope’s main scientific goal is to observe the most distant objects in the universe beyond the reach of either ground-based instruments or the Hubble. The JWST is a project of the National Aeronautics and Space Administration, the United States space agency, with international collaboration from the European Space Agency and the Canadian Space Agency, including contributions from fifteen nations.
Current plans call for the telescope to be launched on an Ariane 5 rocket in June 2014 (or mid 2015) on a five-year mission (10 year goal).
JWST is a true successor to the Hubble Space Telescope (HST) in that it will be able to see many more and much older stars. Compare the two images of the Carina Nebula taken with the HST (left margin). Though both images are of the same astronomical object taken by HST, the top image was photographed utilizing the visible spectrum, whereas the bottom image was taken in the infrared, using the HST’s WFC3 upgrade. Notice how more stars can be counted almost anywhere in the bottom image (infrared spectrum) than in the same corresponding location of the top image (visible spectrum).
The James Webb Space Telescope (sometimes called JWST) is a large, infrared-optimized space telescope, scheduled for launch in 2014. Webb will find the first galaxies that formed in the early Universe, connecting the Big Bang to our own Milky Way Galaxy. Webb will peer through dusty clouds to see stars forming planetary systems, connecting the Milky Way to our own Solar System. Webb’s instruments will be designed to work primarily in the infrared range of the electromagnetic spectrum, with some capability in the visible range.