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View from a Scope | August 24, 2017

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Hubble Extends Stellar Tape Measure 10 Times Farther Into Space

Hubble Extends Stellar Tape Measure 10 Times Farther Into Space

Using NASA’s Hubble Space Telescope, astronomers now can precisely measure the distance of stars up to 10,000 light-years away — 10 times farther than previously possible.

Astronomers have developed yet another novel way to use the 24-year-old space telescope by employing a technique called spatial scanning, which dramatically improves Hubble’s accuracy for making angular measurements. The technique, when applied to the age-old method for gauging distances called astronomical parallax, extends Hubble’s tape measure 10 times farther into space.

Read More at spacedaily.com

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