Home > Astronomy, Astrophysics, Cosmology, Galaxies, General Astronomy, Stars > This Is Your Galaxy: New Data Help Astronomers Explore The Hidden Milky Way

This Is Your Galaxy: New Data Help Astronomers Explore The Hidden Milky Way


Today, astronomers with the Sloan Digital Sky Survey III (SDSS-III) released a new online public data set featuring 60,000 stars that are helping to tell the story of how our Milky Way galaxy formed.

The highlight of today’s “Data Release 10” is a new set of high-resolution stellar spectra — measurements of the amount of light given off by a star at each wavelength — using infrared light, invisible to human eyes but able to penetrate the veil of dust that obscures the center of the Galaxy.

“This is the most comprehensive collection of infrared stellar spectra ever made,” said Steven Majewski of the University of Virginia, the lead scientist for the APOGEE project. “Sixty thousand stars is almost ten times more high-resolution infrared stellar spectra than have ever been measured before, by all the world’s telescopes. Selected from all the different parts of our galaxy, from the nearly-empty outskirts to the dust-enshrouded center, these spectra are allowing us to peel back the curtain on the hidden Milky Way.”

Full Story and Data Link: http://www.sdss3.org/press/dr10.php

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