Bennu Brightening as OSIRIS-REx Approaches

This processed and cropped set of images shows Bennu (in the center of the frame) from the perspective of the OSIRIS-REx spacecraft as it approaches the asteroid. During the period between August 17 and October 1, the spacecraft’s PolyCam imager obtained this series of 20 four-second exposures every Monday, Wednesday, and Friday as part of the mission’s optical navigation campaign.

From the first to the last image, the spacecraft’s range to Bennu decreased from 2.2 million km to 192,000 km, and Bennu brightened from approximately magnitude 13 to magnitude 8.8 from the spacecraft’s perspective.

Date Taken: Aug. 17 - Oct. 1, 2018

Instrument Used: OCAMS (PolyCam)

Credit: NASA/Goddard/University of Arizona


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