Until now, the understanding of the galaxy’s shape had been based upon indirect measurements of celestial landmarks within the Milky Way and inferences from structures observed in other galaxies populating the universe.8 billion years ago.”The astronomers tracked the Cepheids using the Warsaw Telescope located in the Chilean Andes.“Cepheids are ideal to study the Milky Way for several reasons,” added University of Warsaw astronomer and study co-author Dorota Skowron. “Cepheid variables are bright supergiant stars and they are 100 to 10,000 times more luminous than the sun, so we can detect them on the outs******ts of our galaxy.. The new map was formulated using precise measurements of the distance from the sun to 2,400 stars called “Cepheid wall calendar for sale variables” scattered throughout the galaxy.“For the first time, our whole galaxy - from edge to edge of the disk - was mapped using real, precise distances,” said University of Warsaw astronomer Andrzej Udalski, co-author of the study published in the journal Science. The sun, located roughly 26,000 light years from the supermassive black hole residing at the center of the galaxy, formed about 4.The researchers on Thursday unveiled a three-dimensional map of the Milky Way - home to more than 100 billion stars including our sun - providing a comprehensive chart of its structure: a stellar disk comprised of four major spiral arms and a bar-shaped core region.The Milky Way began to form relatively soon after the Big Bang explosion that marked the beginning of the universe some 13. Each light year is about 6 trillion miles (9 trillion km).

These stars pulsate at regular intervals and can be seen through the galaxy’s immense clouds of interstellar dust that can make dimmer stellar bodies hard to spot. They are relatively young - younger than 400 million years - so we can find them near their birthplaces. The disk boasts a diameter of about 140,00 light years.5 billion years ago.The map showed that the galaxy’s disk, far from flat, is significantly warped and varies in thickness from place to place, with increasing thickness measured further from the galactic center.Astronomers have created the most precise map to date of the Milky Way by tracking thousands of big pulsating stars spread throughout the galaxy, demonstrating that its disk of myriad stars is not flat but dramatically warped and twisted in shape.