To Measure Faraway Stars, Scientists Get Help From Asteroids – Market News Store

To Measure Faraway Stars, Scientists Get Help From Asteroids

On a clear night, when we look up at the sky, we see a lot of stars. Sometimes they look within our reach or a short rocket ride at least. But the nearest star to our Earth is almost 4 light years far, not counting our sun at a distance of twenty-five trillion miles. Possibly, in our Milky Way Galaxy, there are hundred billion stars, and there are quite a few among them whose size has been directly measured as they are too far. Size of a particular star is a key piece of information, which reveals many additional mysteries regarding it.

Numerous approaches have been used to measure the size of stars, yet each one has its own boundaries. But now a new way to determine star’s sizes has been discovered by a universal crew, together with investigators from the University of Delaware. Their technique draws on the exclusive capabilities of VERITAS, which stands for the Very Energetic Radiation Imaging Telescope Array System at the Fred Lawrence Whipple Observatory from Arizona, also asteroids, which pass by at just the precise place and right time.

With the help of this technique, Michael Daniel from the Smithsonian Astrophysical Observatory and Trek Hassan from Deutsches Elecktronen-Synchrotron lead a collaboration of twenty-three research institutes and universities has revealed the diameter of a massive star 2,674 light-years far, and a star like sun at a distance of seven hundred light-years, which is the smallest star measured in the night sky to date. The investigation was reported recently on Monday, April 15 in the Nature Astronomy journal. Jamie Holder, who is co-author of the study and an associate professor in UD’s Department of Astronomy and Physics said that, knowing the magnitude of a star is of immense importance. The bigness and hotness of the star says how it was born, he added.

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