Carl A. Wirtanen
Carl Alvar Wirtanen was an American astronomer and discoverer of comets and minor planets who worked at Lick Observatory. He was of Finnish ancestry.
Wirtanen discovered periodic comet 46P/Wirtanen, as well as eight asteroids, including notably the Apollo asteroid 1950 DA, which may have a non-negligible probability of impacting the Earth in the year 2880. He also discovered two other Apollo asteroids: 1685 Toro and 1863 Antinous. Based on the Shane–Wirtanen survey, the Shane Wirtanen Catalogue, a count of galaxies, was his major work published in 1954.
The asteroid 2044 Wirt, discovered by himself at Lick Observatory in 1950, was named in his honor in on 1 January 1981. The name was proposed by his colleague Arnold Klemola.
