Astronomers’ main Milky Way reference guide has just received a major update
The Milky Way in four maps: data from the Gaia spacecraft show the speed at which stars move towards or away from us, known as radial velocity ; their radial velocity and proper motion, or how they move across the sky ; their chemical make-up ; and the interstellar dust .Astronomers’ main reference guide to the Milky Way just received a major update.
“Every day, five papers from Gaia are published,” said ESA director of science Günther Hasinger during an online presentation of the catalogue from Noordwijk, the Netherlands. “In the last three years we have overtaken the gold standard of astronomy, the Hubble Space Telescope, and we are now producing 1,600 papers per year.”Gaia orbits the Sun at a fixed distance from Earth. Over the course of a year, it makes repeated measurements of the same stars from slightly different perspectives.
One important application will be to detect and study clusters of stars that move together across the Galaxy, says Tereza Jerabkova, an astronomer at European Southern Observatory in Garching, Germany. “I think everyone in the star cluster community will jump on the new radial velocities that will allow to analyse more stars in 6D” — which include three dimensions for each star’s positions and three for its direction of motion.
Norge Siste Nytt, Norge Overskrifter
Similar News:Du kan også lese nyheter som ligner på denne som vi har samlet inn fra andre nyhetskilder.
There Could Be Four Hostile Civilizations in the Milky WayIn a series of papers, amateur astronomer and exoplanet researcher Alberto Caballero narrows down who could have sent the Wow! Signal and how many hostile civilizations could be listening to our transmissions.
Les mer »
YouTube adds new feature dubbed 'Corrections' to help creators fix mistakesYouTube is adding new ways for youtubers to fix errors in an already uploaded video.
Les mer »
There Could Be Four Hostile Civilizations in the Milky WayIn a series of papers, amateur astronomer and exoplanet researcher Alberto Caballero narrows down who could have sent the Wow! Signal and how many hostile civilizations could be listening to our transmissions.
Les mer »
Tom Hiddleston Explains How Loki Season 1 Changed His MCU CharacterTom Hiddleston has explained how Loki Season 1 changed his MCU character.🤔 'This idea of him [being] confronted with repetitive patterns of destructive behavior, which only resulted in his loss and loneliness, I found to be extremely exciting.'
Les mer »