ESA will build a new telescope similar to James Webb Telescope, in a few years. See here
Artist impression of ESA's Ariel exoplanet satellite. Credit: Airbus.
- Launch mass: 1,300 kg (2,900 lb)
- Dry mass: 1,000 kg (2,200 lb)
- Payload mass: 300 kg (660 lb)
- Diameter: 1.1 m × 0.7 m
- Focal length: f/13.4
- Collecting area: 0.64 m^2
- Launch site: Centre Spatial Guyanais, Kourou, ELA-4
Source general information about Ariel Telescope (above information): Wikipedia
News! ESA will build a new telescope similar to James Webb Telescope. Recently, ESA (European Space Agency) signed a contract to build a new space telescope, which will have missions similar to those of the James Webb Telescope. The exact date of the launch is not yet known, but the launch is expected to take place somewhere in 2029. In any case, the contract signed by ESA for the construction of the telescope consists of 200 million euros, which means approx. $226.12 million .
The size of the telescope is expected to be much smaller than that of the James Webb Telescope, but perhaps even more flexible. ESA has claimed that their telescope will be named Ariel and is expected to study the formation of exoplanets and other celestial bodies orbiting stars in other systems. Thus, what until now was a world almost impossible to discover (exoplanets) becomes a reality. Ariel will have important missions to study the atmosphere of exoplanets in any case, to study the evolution of exoplanets, and even to observe how some of them manifest themselves in relation to climate, motion, but also many other things.
If so far, 4576 NASA-confirmed exoplanets have been discovered, Ariel will have a mission to study at least 1,000 of them. This means a very important step in studying these exoplanets, the more the telescope examines the exoplanets, the more accurate the data on the evolution and atmosphere of the exoplanets will be.
ESA will sign the contract for the construction of the telescope with the company with which it already collaborates, Airbus.
Ralph Cordey, who is at Airbus, told the BBC: "Webb of course is a general purpose observatory and it will be doing many other things than just studying exoplanets. But for Ariel - it will be totally focussed on this one job. One hundred percent of its observing time will be dedicated to characterising exoplanet atmospheres,"
Airbus and ESA also plan to build the telescope to be able to travel 1.5 million kilometers from Earth (quite a lot). The full name of the telescope, known as Ariel, is: Atmospheric Remote-Sensing Infrared Exoplanet Large-survey. This name and the idea of developing such a telescope was first proposed in 2018, but not much emphasis was placed on it. But now ESA has big plans for building and launching the telescope by itself, Airbus and its 60 industrial partners.
Thus, a lot of scientists, researchers, aerospace engineers, and many others will be involved in the design and construction of the telescope, in addition to the huge team of industrial partners.Great help is coming from the UK who will try to build and assemble most of the telescope's hardware. Ariel will face extreme conditions when it is launched in 2029, some of the conditions will be even higher than those that James Webb Telescope will endure. Thus, Ariel will have to be built to withstand temperatures of -230 C (40 kelvins) easily.
"We will build the telescope from aluminum, from the same material, so that when it changes from room temperature to something that is very cold - it should all shrink at the same speed; all surfaces to deform together. If it is perfectly aligned. when it's hot, it should stay perfectly aligned when it's cold, "said Paul Eccleston, chief engineer at RAL Space.
We wish ESA, Airbus and their partners succes to create and built this telescope!
Article by: Andacs Robert Eugen, on 10 December 2021, at 08:13 pm Los Angeles time
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