If we’re all interested in space science, let’s wait.— To be made public on July 12 — Excited and puzzled today for the release of the Gaia mission’s third data catalogue. Unlike other quests that target specific objects, Gaia is a “simple” research quest. So don’t expect to see beautiful pictures of the Universe.
If astronomers around the world are looking forward to this data, it’s because Gaia’s performance is unmatched. Indeed, this satellite can observe all objects that are 400,000 times fainter than the faintest in the world.observable naked. As a result, this catalog of new and improved details for nearly two billion stars in our galaxy is the gold standard in astronomy. It lists approximately 1.8 billion celestial bodies with unprecedented astrometric and photometric precision and represents a major advance over the previous catalog (DR2) in terms of precision, accuracy and homogeneity of astrometric and photometric data.
Great potential for knowledge
Why “simple” measurements excite astronomers andIt should be known that Gaia can measure its position and motion in three dimensions, its color and properties for every star it can detect in the galaxy. and even chemicals for the brightest. This is not a new, slightly improved definition of the galaxy, but more than a significant enrichment of information.
Gaia’s data will be useful to all fields of astronomy and science.. There is no single astronomer. chemist or will not directly or indirectly use its data. So we expect new discoveries, a significant advance in our understanding of the Universe, and more surprisingly, a certain amount of knowledge being questioned.
There is not a single astronomer, whether historian, chemist or physicist, who would not use his data directly or indirectly.
New to this dataset is the largest star catalog to date.from thousands of objects like asteroids and moons of planets millions of galaxies and .
Launched in December 2013 to 3D map over a billion objects in our galaxy with unmatched precision, Gaia should be up and running by 2025. It took five years to deliver this third catalog of observations, spanning 2014 to 2017. 2030 to get the latest version of the Gaia catalog.
Various findings have been presented today. Thus, we learn that some of the stars in our galaxy are composed of the following.others like us is made of previous generation star-enriched material. Stars closer to the center and plane of our galaxy are richer. more distant than stars
Gaia also identified stars from galaxies other than our own, based on their chemical composition. This diversity It is extremely important because it tells us the story of the formation of our galaxy. Uncovers migration processes inside our galaxy andfrom outer galaxies. It also clearly shows that our Sun and all of us belong to an ever-changing system formed by the merging of stars. from different origins Says Alejandra Recio-Blanco of the Côte d’Azur Observatory in France, a member of the Gaia collaboration.
More surprisingly, Gaia Detecting stellar earthquakes that appear as tiny movements on a star’s surface and change the shape of stars Conny Aerts from KU Leuven in Belgium, a member of the Gaia collaboration. Finally, it features a new binary star catalogue.more than 800,000 of them A new study of 156,000 asteroids delves deeper into the origins of our solar system. Gaia also provides information about 10 million mysterious between quasars and galaxies as well as stars beyond our own cosmic neighbour.