Theia 456 is a stretched-out stream of sibling stars | Space
January 15, 2021 A close look at the “stellar stream” known as Theia 456 finds it contains contains 468 stars born at the same time. Illustration depicting star streams in the Milky Way (not the Theia streams) via NASA/ Northwestern University. Astronomers have identified many more or less spherical clumps of stars born together and still traveling together through space. We call them open star clusters; many are well known as beautiful places in the sky to see through binoculars or a small telescope. On January 15, 2021, at a virtual session during this week’s meeting of the American A...
Source: earthsky.org