File:Optical Double.jpg

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The extreme luminosity of a distant quasar makes it appear identical to a nearby star

Summary

DescriptionOptical Double.jpg	English: Hubble's 100,000th exposure. As seen two seemingly identical stars are visible. One is a milky way star close to us while the other is a quasar 9 billion light years away that is so luminous it appears just as bright as the foreground star.
Date	10 June 1996
Source	https://science.nasa.gov/image-detail/hubble-100000observation-stsci-01evtamwz815fs5sx268kjj5sx/
Author	NASA

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Image title	The Hubble Space Telescope achieved its 100, 000th exposure June 22 with a snapshot of a quasar that is about 9 billion light-years from Earth. The Wide Field and Planetary Camera 2clicked this image of the quasar, the bright object in the center of the photo. The fainter object just above it is an elliptical galaxy. Although the two objects appear to be close to each other, they are actually separated by about 2 billion light-years. Located about 7 billion light-years away, the galaxy is almost directly in front of the quasar.
Credit/Provider	Charles Steidel (California Institute of Technology, Pasadena, CA) and NASA/ESA
Source	ESA/Hubble
Short title	Hubble's 100,000th Exposure
Usage terms	Creative Commons Attribution 4.0 International License
Date and time of data generation	06:00, 18 July 1996
Keywords	Quasar
Contact information	http://www.spacetelescope.org/ Karl-Schwarzschild-Strasse 2 Garching bei München, , D-85748 Germany
IIM version	4

File:Optical Double.jpg

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File:Optical Double.jpg

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