42487 Ångström | Discovered 1991 Sept. 9 by F. Börngen and L. D. Schmadel at Tautenburg. |
Swedish physicist Anders Jonas Ångström (1814-1874) is a cofounder of astrospectroscopy. He measured the wavelengths of about 1000 Fraunhofer lines, discovering among them some hydrogen lines. The `angstrom', a unit of length equal to the 10-10 meters, was named for him. |
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Reference: 20030106/MPCPages.arc | Last Updated: 2003-10-02 |