The Space Telescope “James Webb” immediately photographed a young planet for the first time. In a slice of gas and dust around the young star TWA 7, astronomers found an opening in which the exoplanet revolves around its central rudder.
The planet with the catalog number TWA 7B is the lightest exoplanet that has ever been shown immediately (ie photographed). With a mass that corresponds about 100 times to our earth or the 0.3-fold mass of the Jupiter, TWA 7B is by far the lightest of all exoplanets shown to date.
Stern was discovered in 1999
TWA 7B was discovered in the rubble rings, which surround the low mass star CE Antilae (also TWA 7, note). The star discovered in 1999 is a very young sun, whose age is estimated for just a few million years. For comparison: our central gesture, a middle sun, is about 4.6 billion years old.
Find in the rubble of the star
CE Antilae is of great importance for astronomers for a long time, because the earth system can be “polarized”. This means that the protoplanetare disc (also called the debris; note), which surrounds the CE antilae, is seen from “top” (or “under”), which makes the full size visible.
This has made it possible for the astronomers to recognize structures in this disc, which are apparently created by the severity of the planets that have not yet been seen and thus -bound Planetesimal (these are precursors and building blocks of planets;
Planet has the mass Saturn
The CE Antilae Protoplanetare disk is divided into three different rings, one of which is narrow and is limited by two empty “avenues”, which are largely free of matter. Exactly in this gorge is the young planet TWA 7B, the mass of which is approximately that of the Saturn.
Telescope 1.5 million kilometers from the earth
The “James Webb Space Telescope” (JWST, photo below), which was also built with Austrian participation, was brought into space in December 2021 after decades of preparations and some delay in the room. It is now more than a million kilometers from our earth.
The JWST investigates the early days of the Kosmos, only a few hundred million years after the big bang about 13.8 billion years ago. Astronomers promise conclusions about the formation of the first stars and galaxies that have been sent in space by the observatory. The telescope is also looking for the air for exoplanets.
Source: Krone
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