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The First Image Of NASA’s James Webb Telescope, This Is What Scientists Say


The conception of the James Webb Space Telescope in space shows all of its major elements fully deployed. The telescope folded to fit its launch vehicle and then slowly opened for two weeks after launch. Source: NASA GSFC/CIL/Adriana Manrique Gutierrez.

SPACE – NASA’s James Webb Telescope (JWST) takes at least 4-6 months to reach the observation point and set up all its devices independently in space there. Webb successfully flew into space on December 25, 2021 and has completed the separation process about two weeks later. The Webb Telescope is very large indeed must be folded to fit the size of the launch rocket.

The web continues to advance towards its final destination, which is the Earth-Sun Lagrange point 2 (L2). It is a gravitationally stable place in space, about 930,000 miles or 1.5 million kilometers from Earth.

When James Webb began the long process of aligning his 18 main mirror segments, a question arose in the astronomy community: What would the massive observatory machine see for the first time?

The telescope does include 18 hexagonal mirror segments that need to be gradually aligned to form a nearly perfect light-gathering surface. An important part of the process is taking pictures of the sky to see how well the mirrors work together.

Webb operations scientist Jane Rigby warns everyone not to expect much from Webb’s ‘first light’. “The first image will be ugly. It will be blurry. We will [memiliki] These 18 thumbnails across the sky,” Rigby told reporters during a streaming press conference on Saturday, January 8, 2022 US time, as reported by the news agency. Space.com, Friday, January 14, 2022. That day, just when Webb’s main mirror with a width of 6.3 meters managed to open.

During the press conference, members of the Webb team made no mention of plans to release the first ‘ugly’ image. In the working system, the main mirror segment will initially be reduced by a few millimeters.

But on about 120 days of the mission, which is about April 24, 2022, scientists hope the telescope will see much more precisely, with each mirror’s alignment procedure completed.

“I like to think of it as, we have 18 mirrors that, right now little prima donna, all do their own thing, sing their own tune in whatever key they use,” Rigby said. However, in Webb, the 18 mirrors must work together like a chorus. And putting them together is a methodical and painstaking process.

The next big question is what will Webb focus on first? according to

Rigby, there are several technical alignment targets that Webb will see in his initial observations.

“We have several sources that are of good, uniform brightness, so we can check how the detector works,” he said.

Some of these targets are in the Large Magellanic Cloud (a satellite of the Milky Way Galaxy), because there, telescopes can see the north and south poles of the ecliptic.

Webb’s team, he said, chose multiple targets in the dwarf galaxy relatively close to the Milky Way because they would always be visible, no matter when Webb was launched.

The James Webb Space Telescope is a joint project between the United States, Europe and Canada which costs around Rp. 142.4 trillion. The super-telescope is designed to be able to see the universe further, detecting the past, than can be observed so far.

The launch of the world’s largest space telescope at the end of last year was highly anticipated, as well as worrying because of the complicated process. It is the successor to the Hubble telescope, which has been photographing space for decades.

The Webb telescope is expected to detect light from the first stars that shone in the universe about 13.5 billion years ago. “The most exciting prospect for this telescope is the idea that it can bring up (answers to) questions we haven’t even thought of yet,” said Dr. Amber Nicole Straughn, an astrophysicist at NASA’s Goddard Space Flight Center and deputy of this project.

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