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Quasar PC 1158+4635
Contributing Institution
California Institute of Technology
Image Archive
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Materials from the Caltech Archives are made available online for research purposes. Permission for reproduction, distribution, public display, performance, or publication must be obtained in writing from the Head of Archives. The Caltech Archives makes no representation that it is the copyright owner in all of its holdings. It is the responsibility of the user to obtain all necessary rights and clearances for use of materials. For questions, contact Head of Archives.
The star-like image in the center of this electronic photograph is the most distant quasar yet discovered. With a redshift of 4.73, it is estimated to have formed when the universe was only 7% of its present age. Thus, if the universe is 15 billion years old, the quasar is about 14 billion light-years away. This quasar was discovered using an electronic camera attached to the 200” Hale Telescope at the Palomar Observatory by Maarten Schmidt, James Gunn and Don Schneider.
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