Based on the data of the ESA Space Telescope Gaia, a French astronomin with several colleagues has created the most accurate card of the extended neighborhood of our sun. At a distance of a maximum of 10 parsec (about 32.6 light years), there is therefore exactly 373 stars, 83 enameled (and three unaccepted) brown dwarfs and 77 confirmed exoplanets. It is the so far of a full list based on the latest GAIA data, which will be further refined with art. The cards not only offer great visual material for astronomically interested, but could help other researchers, for example when calibrating their data, explains the team.
(Source: GalaxyMap.Org, Twitter: @Galaxy_map, CC BY-SA 3.0 Igo)
Our most important observatory in all
Gaia was started in 2013 and is present to the most important observatory in all overhead. With a gigapixel camera, it continues to photograph the firmament. Because the probe moves with Earth around the sun, the minimum apparent position changes of the stars can be compared and determined by the parallaxing of their exact distances to us and their relative movement. Each long the data collection lasts, the more accurately the data and the more stars can be measured. The youngest record included almost two billion stars. In this way, the distance is the most accurate card of the milk strain and in addition to the research of oscillatory value.
Like the researchers around Celine Reyle from the Universite Bourgogne – Franche-Comte in Besancon now in a specialist article for Astronomy Astrophysics, the sun’s tight stars provide fundamental data for our understanding of Stellar Physics and Milk Strain. The compiled database now not only includes the most precisely location information on the neighbors of the sun, but also further data – for example to the spectral class or for brightness. More than half of the stars (a total of 249) therefore falls into the so-called spectral class M – it is red dwarfs – while there are only less than two dozen of spectral class G, to which our sun is obvious. In addition, there are 20 soft dwarfs in this region.
The narrower neighborhood of our sun
About the half of the stars or brown dwarfs is on the way alone, but there are also 70 double star systems, 19 triple star systems, 3 quadruple systems and even two Funfffachsysteme. Under the exoplanets, you even listed which could be displayed directly by GAIA directly. The entire database has set the team to the Internet and created a whole range of visualizations. This is a freely zoom and movable card of the objects in which it is not only recognizable where they lie relative to the sun, but also what for a sky corner it is and whether exoplanets were discovered there. Two-dimensional maps show the environment of the sun in up to 5 and 10 parsec removal, a zoomable version gathers all objects with additional information on a level.