Sollenberger

1982 TT. Discovered 1982 Oct. 13 by E. Bowell at Anderson Mesa.

Named in memory of Paul Sollenberger (1891-1995), the U.S. Naval Observatory's first civilian director of Time Service (from 1928 until his retirement in 1953). Sollenberger's contributions to the design of quartz-crystal clocks, chronographs and the photographic zenith tube greatly increased the precision of timekeeping during his tenure. By 1934 he had not only introduced quartz-crystal clocks, but also arranged for the automatic transmission of time by them, accurate to a millisecond. In 1949 he established the USNO's Time Service station using a PZT in Richmond, Florida. Sollenberger served as president of IAU Commission 19 during 1948-1955. (M 25653)

Citation prepared by D. D. McCarthy. Name endorsed by P. K. Seidelmann.

Obituary published in Bull. Am. Astron. Soc., Vol. 27, No. 4, p. 1482-1483 (1995).

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