Credit: NASA/SCIENCE PHOTO LIBRARY

Caption: Kuiper Belt Object 1994 JR1. Composite footage showing two observations of a 145-kilometre wide Kuiper Belt object (KBO) 1994 JR1 (indicated by arrow), orbiting more than 5 billion kilometres from the sun. The observations helped to pinpoint the location of JR1 to within 1,000 kilometres and to disprove the theory that it is a quasi-satellite of Pluto. The variations in the brightness of light reflected from the object's surface have also allowed the determination of 1994 JR1's rotation period of 5.4 hours. The feature at top left is an internal camera reflection. The images were taken with the New Horizons spacecraft Long Range Reconnaissance Imager (LORRI) in April 2016, from a distance of about 111 million kilometres.

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Keywords: 1994 jr1, 7, 8, april 2016, astronomical, astronomy, brightness, composite, deep space, distant, exploration, exploring, interplanetary, kbo, kuiper belt, kuiper belt object, less than 10 seconds, light, location, long range reconnaissance imager, lorri, nasa, new horizons, no one, no-one, nobody, object, observation, outer, planetary, planetesimal, pluto, probe, protoplanet, quasi-satellite, reflected, research, rotation period, solar system, space, spacecraft, surface, variation

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Kuiper Belt Object 1994 JR1

K005/6815 Rights Managed

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Duration: 00:00:09.29

Frame size: 1440x1080

Frame rate: 30

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Format: QuickTime, Photo JPEG 100%, progressive scan, square pixels

File size: 279.0M

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Capture format: Digital Image Sequence

Frame size: 1041x781

Codec: GIF

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