James Webb Space Telescope
Hello friends, today we discuss about a telescope named James Webb Space Telescope that is ready to replace Hubble (Telescope that was placed into the orbit on 25 April 1990)
The Hubble Space Telescope was placed into orbit on 25 April 1990 with the help of American STS shuttle ‘Discovery’ flight STS-31. This space-based telescope was named as the Hubble Space Telescope in honor of astronomer ‘Edwin Powell Habbal’. This telescope is currently orbiting the Earth’s orbit at a height of 600 kilometers. It takes 100 minutes to make one round of the earth.
From the installation to present day the Hubble Space Telescope has been repaired (serviced) five times in space. Now Hubble has become the first space telescope that has worked for such a long time and since the last repairing of 2009. It is expected that it will continue to work till 2025. Now ‘James Webb Space Telescope’ is ready to take its place.
NASA has announced that it is the next large space observatory, all its parts have been added or assembled. The James Webb Space Telescope prepared at a cost of US $ 9.7 billion is scheduled to be launched in October 2021 this year. If all goes well, the James Webb Space Telescope will become the largest telescope ever sent to space in the year 2021. Significantly, this space telescope is a joint effort of American (NASA), European (ESA) and Canadian (CSA) space agencies.
The James Webb Space Telescope is proposed to be launched from French Guiana in the year 2021 via Europe’s Erin 5 rocket. It will take about a month to reach.
Image: NASA
https://svs.gsfc.nasa.gov/13759
Following are the few key points of James Webb Space Telescope
- The James Webb Space Telescope (also known as JWST or Webb) is the largest telescope ever sent into space.
- Earlier JWST was known as New Generation Space Telescope – NGST, but in September 2002 it was renamed after former NASA administrator James Webb.
- It will be a large infrared telescope with a 6.5 meter primary mirror. In which mirrors of sunshield length of 22 meters (72 feet, tennis court size) and 6.5 meters (21 feet) width will be attached.
- JWST is twice of the size of a Hubble Space Teliscope.
- It takes one month to reach a distance of 1.5 million kilometers (930,000 mi) from Earth. This condition is known as Lagrange Point 2 or L 2.
- At this point the telescope will be operated at temperatures below -390F.
Probably after the success of this telescope, scientists from all over the world will be able to collect information about space through this web telescope for the next several years.
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