Ring Around 1987 Supernova Provides a New Yardstick
FEB 01, 1991
DOI: 10.1063/1.2809984
The picture at right shows a gaseous ring, 1.37 light‐years in diameter, surrounding the remnant of supernova 1987A. This image, taken by the European Space Agency’s Faint Object Camera aboard the Hubble Space Telescope, achieves a diffraction‐limited resolution of 0.07 arcseconds, despite the Hubble’s much lamented spherical aberration.
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© 1991 American Institute of Physics
