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Glossary term: Telescópio infravermelho

Description: Um telescópio infravermelho observa a luz infravermelha e é usado para astronomia no infravermelho. Os telescópios de infravermelho podem estar situados no solo ou no espaço. Os observatórios situados na Terra são limitados no que podem observar devido à absorção atmosférica e à radiação infravermelha emitida pela atmosfera da Terra, pelo próprio telescópio e por seus arredores. Os telescópios espaciais de infravermelho não precisam lidar com a absorção atmosférica ou com a radiação infravermelha de seus arredores imediatos e podem ser protegidos do Sol e resfriados, reduzindo a radiação infravermelha emitida pelo telescópio.

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Term and definition status: The original definition of this term in English have been approved by a research astronomer and a teacher
The translation of this term and its definition is still awaiting approval

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The left image has finger-shaped clouds with bright edges. In the right image we see stars shining through those clouds

The Pillars of Creation in comparison

Caption: The 'Pillars of Creation' are a renowned astronomical feature situated within the Eagle Nebula in the Serpens constellation. The illustration provides a direct comparison between images captured by the Hubble Space Telescope (HST) and the James Webb Space Telescope (JWST), showcasing the pillars, which span several light years in diameter, in both visible light (also known as optical light) and infrared light. On the left are the pillars as seen by Hubble in visual light, taken in 2014. It displays dark pillars against an opaque background, with only a handful of visible stars. Conversely, the counterpart on the right is Webb’s near-infrared view published in 2022, penetrating the dust and revealing numerous stars of varying sizes. Their distance from Earth is approximately 6,500 to 7,000 light years. Within these pillars, new stars are constantly forming, making them a subject of extensive study by astronomers. Composed mostly of cool molecular hydrogen and small amounts of interstellar dust, they are subject to erosion by the intense ultraviolet radiation emitted by nearby massive and newborn stars, a process known as photoevaporation.
Credit: NASA, ESA, CSA, STScI credit link

License: CC-BY-2.0 Creative Commons Attribution 2.0 Generic icons

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