How Passing Asteroids Reveal the Secrets of Distant Stars

Using the unique capabilities of telescopes specialised on cosmic gamma rays, scientists have measured the smallest apparent size of a star on the night sky to date. The measurements with the Very Energetic Radiation Imaging Telescope Array System (VERITAS) reveal the diameters of a giant star 2674 light-years away and of a sun-like star at a distance of 700 light-years. The study establishes a new method for astronomers to determine the size of stars, as the international team led by Tarek Hassan from DESY and Michael Daniel from the Smithsonian Astrophysical Observatory (SAO) reports in the journal Nature Astronomy.

How Passing Asteroids Reveal the Secrets of Distant Stars

Stars in the night sky appear as tiny points of light because they are too far away for your eyes to resolve. But even through powerful telescopes, stars still appear as mere points because ...

Fri 19 Apr 19 from Discover Magazine

Asteroids help scientists to measure the diameters of faraway stars

Using the unique capabilities of telescopes specialised on cosmic gamma rays, scientists have measured the smallest apparent size of a star on the night sky to date. The measurements with the ...

Mon 15 Apr 19 from Phys.org

Nearby asteroids reveal sizes of distant stars

By watching asteroids pass in front of two stars, researchers have measured the stars' sizes, paving the way for more direct observations of distant suns.

Wed 17 Apr 19 from Astronomy.com

Asteroids help scientists measure distant stars

Newark DE (SPX) Apr 16, 2019 Look up at the sky on a clear night, and you'll see lots of stars. Sometimes they seem almost within reach or at least a short rocket ride. But the closest star ...

Mon 15 Apr 19 from SpaceDaily

Asteroids help scientists measure distant stars, Mon 15 Apr 19 from ScienceDaily

Sizing up a starry night, Mon 15 Apr 19 from Eurekalert

Asteroids Help Scientists Measure Diameters of Faraway Stars

Hamburg, Germany (SPX) Apr 16, 2019 Using the unique capabilities of telescopes specialised on cosmic gamma rays, scientists have measured the smallest apparent size of a star on the night ...

Mon 15 Apr 19 from SpaceDaily

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