2023-07-14 15:50:00
<허블 우주망원경(왼쪽)과 제임스 웹 우주망원경 주경 크기 비교. 사진=유럽우주국(ESA)>
It’s been a year since the James Webb Space Telescope (JWST; Webb) released four photos to the public. During the 12 months that Webb released photos, the general public was amazed at its ability to capture even the tiniest of light, and the scientific community was surprised by its ability to capture even the tiniest of light. Cheered for the new discovery. On the 12th (local time), the American media Business Insider compared and analyzed astronomical photos taken by Webb with those taken by Hubble, a space telescope that preceded the first anniversary of the release of Web photos. Rings of Uranus… Web caught 11 in just 12 minutes<허블(왼쪽)에는 가장 바깥쪽 고리만 촬영된 반면 웹에는 13개 중 11개가 찍혔다. 사진=NASA, ESA, CSA, STScI>
In April, the National Aeronautics and Space Administration (NASA) released a new photo of the icy planet ‘Uranus’ in the solar system. It’s focused. Uranus, like Saturn, has rings, but they are difficult to capture with a space telescope because they are made of rock and dust that do not reflect sunlight. This was due to Voyager 2’s close proximity to Uranus. Hubble also photographed the two outermost rings in 2022, but Webb captured 11 of the 13 rings clearly in just 12 minutes of filming. Sharp infrared eyes to Jupiter auroras and storms<이전까지 사진에는 나타나지 않았던 목성의 오로라가 웹에 선명히 촬영됐다. 사진=NASA, ESA, CSA, STScI>
In August of last year, Webb captured Jupiter, the largest planet in the solar system, with his eyes. The giant storm “Great Red Spot” and stripes surrounding the planet were as we know them, but the polar regions were different. this shining look Jupiter, which has a magnetic field 20,000 times stronger than Earth’s, produces the most powerful aurora in the solar system. On the other hand, the reason why Jupiter, which had only been seen as ocher, appeared blue to Webb’s eyes, was not visible light like Hubble’s, but red, yellow-green, and blue. This is because three photos taken with a near-infrared camera (NIRCam) with two special infrared filters were synthesized. The Southern Ring Nebula “really had two stars in the center”<웹의 중적외선 장비(MIRI)으로는 중심에 별이 2개라는 것을 더욱 선명하게 볼 수 있다. 사진=NASA, ESA, CSA, STScI>
This picture of the Southern Ring Nebula, also called the Eight-Burst Nebula, was one of the first images published by Webb on July 12 last year. Scientists knew there were two stars at the center of the nebula, but to Hubble’s eyes, one star looked like a small dot. shone brightly Also nearby were three stars shining in a nebula. Even the long-gone light was captured by Webb’s sharp eye. The ‘Scattering Field of Stars’ reveals the true value of the web<용골자리 성운에서 '우주 절벽' 아래에 이제 막 탄생한 어린 별. 허블(왼쪽)에서는 우주 먼지에 막혀 보이지 않지만 웹에서는 보인다. 사진=NASA, ESA, CSA, STScI>
The sharp field of view of the web is visible when the so-called ‘star scattering field’, where new stars are born, is photographed. Stars are usually born surrounded by a thick layer of cosmic dust and gas, and the web penetrates this thick ‘cocoon’ to a faint light. Captured clearly. This can be seen in the Carina Nebula. The Carina Nebula was also included in the first picture released last year. In particular, the upper left of the image is where young stars are forming. Numerous stars that were invisible when taken by Hubble have made their presence felt in images from the Web. In 20 hours, to the distant light hidden in a black space<허블(왼쪽)의 대표 사진 중 하나인 '울트라 딥 필드' 영역을 웹이 단 20시간 촬영으로 얻어냈다. 사진=NASA, ESA, CSA, STScI>
Deep field, one of the first five chapters published by Webb. This deep field, which Hubble first tried, refers to taking pictures of outer space where nothing can be seen. However, it made a huge difference in time. These huge space telescope projects are literally ‘time is money’. It costs astronomical money even if it is operated for just one day. In 2003, Hubble took only 11.3 days to complete this image. It was obtained by taking 800 images during Hubble’s 400 orbits around the Earth. On the other hand, the web proved its performance by taking a picture that surpassed that of Hubble in just 20 hours.
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