Astronomers watch DART mission's asteroid Didymos eclipsing stars with tricky technique

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Astronomers have captured the shadow of the space rock Didymos, target of NASA's asteroid-smashing mission, as it passed in front of distant stars.

Astronomers watch DART mission's asteroid Didymos eclipsing stars with tricky technique : Read more

 

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"Now that astronomers have spotted Didymos eclipsing stars, catching similar events in the future should be easier. And tracking these future stellar occultations should allow a better accounting of how the system's orbit around the sun has been changed by the DART impact."

Some amateur groups also track and measure asteroid distances using parallax.

AMATEUR ASTRONOMERS TEAM UP TO MEASURE DISTANCE TO A CLOSE-PASSING ASTEROID, https://skyandtelescope.org/observing/amateur-team-measures-distance-near-earth-asteroid/