Astronomy & Astrophysics published the first analysis of a catalog of 84 million individual stars in the Milky Way bulge as a part of the VVV ESO public survey. This gigantic data set allows building ...

Color-magnitude diagrams for all bright stars within 1,000 light-years of the sun as determined by Mt. Wilson astronomers in 1935. (Left) Diagram without the subgiants, in which it is difficult to ...

A nine-gigapixel VISTA infrared image of the Milky Way's central region yielded a catalog encompassing over 84 million stars, a tenfold increase over previous studies. This data set, created from the ...

Mapping the galaxy is tricky business because of the inherent difficulties in measuring distances to stars. The problem boils down to determining the inherent brightness of a star, a property called ...

Astronomers have created a catalog of more than 84 million stars in the central parts of the Milky Way. This gigantic dataset contains more than ten times more stars than previous studies and is a ...

Recent research utilizing color-magnitude diagrams has reclassified Terzan 5, previously thought to be a single-age globular cluster, as a system hosting two distinct stellar populations that formed ...

Russell drew a simple system of coordinates with x- and y-axes, familiar to schoolchildren from geometry lessons. On this diagram, he entered the stars according to their spectral type or temperature ...

They say a picture is worth a thousand words, but this just leaves us speechless. Pictured above is a compressed 108,500 x 81,500 pixel image of 84 million stars across central parts of the Milky Way.