De More than 5,000 exoplanet In the catalogs of astronomers, it could still be intriguents confirmed last week, revolving around a fire and ice ice.
20794 dbbed (20794 HD is the name of the star and two previously announced siblings, HD 20794 B and HD 20794 c). This planet is at least as massive as 6.5 earth. This is mostly a relatively thin atmosphere of soils that mostly have a thin atmosphere: even though the super-earth is so called a thick layer of gas or a mini-neptune that exceeds the thick gas or deep global ocean. core. In addition to the unquestionably, HD 20794 d'”intriging” is no special 647 per day orbit, and at one end, Mart is more close to the Sun and is very close to Venus. This eccentric orbital orbital crosses the area of the stars of the stars, the regions that can last liquid water and the region can turn on life, even the heat and cold cycle of the planet can be frozen to convert water to steam or ice.
This strange new world is very close: 20 lights from the ground in a few years, available A deeper direct examination Depending on the future spatial telescopes, astronomers look closer. One day, to pinch his real planetarium, researchers could search for photographs of the world to look for evidence of his strange orbit or it is really habitable or as well as living.
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The constellation is located in Eridanes, 20794 HD 20794 is quite bright in Earth’s heaven, which is not a rare way to be visible to the boredom’s awesome exoplanet hosting stars. This brightness has placed the priority lists of planet hunters, multiple groups to closely control the star, even with mixed results. Planetary candidates come around the star and have gone, hopeful opportunities in the beginning to prove that they are false alarms.
That’s because Hunting has been focused on measuring HD 20794 movements in the sky, to look for changing worlds caused by unseen worlds, which can orbait the stars. The smaller the planet and the wider it connects its wobble. Observing minor influences, they confirm that the planets are, storms and eruptions or rash or glitchy equipment, decades, decades can be work to spread.
Published in the magazine Astronomy and astrophysics, This latest study is based on more than 20 years of data, especially from the two planetary tools of the South Chilean Observatory: Harps (Radial Precision Velocity Planet Planet) and Espresso (Echelle Spectrons for rocky expression and stable spectroscopic observations). However, the key steps were not so higher, so a variety of different techniques were better to detect signs of stars and instrumental noises. Data reduction New Algorithm, Yarara, Spearheaded Spearheaded by Michaël Author Cretignier, Doctoral Researcher at the University of Oxford. And the work confirms the presence of 20794 d HD 20794 d, which he proposed in Cretignier in 2022. It also values the existence of two planetary Planetary Planetary planetary planetary, which was deflated the case of another friend in 2011.
“So it was a new kind of analysis to achieve this conclusion, we are sure that, is sure,” 20794 d), “said Xavier Dumusque, an astronomer of the University of Geneva and the author of the author. But beyond his mere existence, the most wonderful parties of the world are full of mysteriously.
HD 20794 d’s is still as simple as the real mass, noes in the Jet Propulsion laboratory in NASA, who did not participate in the study. As strict, as indirect, he can only give the minimum mass of the planet. “If the real mass of the planet 6.5 is about the mass of the earth, it could be the earth,” he says. But it could be quite different, it also makes rocks, under mass water or mass hydrogen under mass water layers. “I don’t think this planet is rocky (yet),” he finished.
20794 d Eccentric orbit of the planet This world emits this world full of a habitable zone of his star.
(Dumusque et al. 2025) Gabriel Pérez Díaz, SMM (IAC)
Jessie Christiansen, the main scientist at the NASA EXOPLANET Institute of Science at the Institute of Technology Institute, has similar reservations. The astronomers have achieved densities, and therefore large compositions, for many exoplanets, were notices, unlike 20794 d, when they threw their star’s face to the ground. “If you examine the densities (distribution), these massibons are most of those most massive planets,” he said. “But some of them are; it’s not uncommon … and it’s worth three options to research more time, right?”
The unpredictable question of the composition of the planet is close to the heart of his liveliness, or at least whether they could be similar to the earth. “It’s really very important in chemistry,” explained Lauren Weiss, an Asteropisicist Asteropisicist study. “If you think life is of any kind based chemistry, chemistry happens faster on a two-dimensional surface than the way you float in space. So rocky surfaces are interested in (astronomers).”
The composition of the planet is also essential for understanding what conditions dominate from the end and the flow of light stars caused by its eccentric orbits. Although a fire and ice world seem essential, Dumusque does not have a vision, especially in particular, especially 20794 d HD “planet an ocean”. “If you have some deep oceans like the ground, for example, you pressure in the game,” he says. “Then we can still have a surface of liquid water from the ice, and we know on the ground, life appeared deep in the ocean.”
Such speculations are part of a recycling topic in the search for a “Earth 2.0” exoplanetary. Time and time again, “discoveries showed a wider diversity of ways to form vivid planet,” he says, “it is awesome because our theories really encourage.”
Luckily, astronomers should not stick to theoretizing forever. Nasak or proposed missions proposed World Worlds Observatory (Hwo) and ESA Great interferometer for exoplanet (Life) directly to represent the image or, may be able to measure global tools, measure their composition, map their surface or cloud peaks to make significant chemical indicators of their atmosphere “Sniff”. But finding the right candidates to focus on these telescopes, the task of the Herculean is demonstrated, depending on Weiss, and that could be HD 20794 d Stardom Un Moment.
“We’ve found more than 5,000 exoplanet, but many of them are very far away. We don’t know many exoplanets around the livelihood,” he said, especially jewelry and close 20794 d.
In fact, NASA and the computer already have 20794 HD to get a summary of the list of HWO and life, according to Dumusque and Hu.
“We’re certainly not to select the goals (HWO), but efforts have been made to list all potential goals,” Hu says. When we know that a planet is a 20794 planet “is a good fraction of his time that will pass good fraction and potentially rocky. That is certainly a more attractive system for future observations.”
In any case, weiss says that the version of the Earth is basically Search for learning more about Earth 1.0-Letraje. “As other exoplanes and their properties and the basic environments begin, (that) is valid for analyzing our origin and to assess the natural circumstances, maybe help us to increase the solar system where and when we are in space.”
