Paul Oswald Ahnert

Paul Oswald Ahnert (November 22, 1897 – February 27, 1989) was a German astronomer.

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Paul Ahnert became famous in Germany for publishing the "Kalender f?r Sternenfreunde" from 1948 until 1988, an annual calendar of astronomical events.

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Paul Ahnert was born in Chemnitz (Kingdom of Saxonia). During the First World War he served as an ordinary German field-soldier. After the war he became a member of the SPD and was a committed opponent of the rise of militarism and right wing revanchism in Germany. Between 1919 and 1933 he worked as an elementary school teacher. In addition to this he was an ambitious amateur astronomer and in 1923 his first article was published in the scientific journal Astronomische Nachrichten (AN 219 (1923), 165–170). He reported about long period variables he had observed from his private observatory.

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When Hitler became Chancellor in 1933 the Nazi regime removed Paul Ahnert from his post. He was arrested and imprisoned for a few months in a concentration camp. Released from imprisonment he had to earn his living by doing occasional jobs. But in 1938 he had a lucky escape for his real profession. Cuno Hoffmeister invited him to the Sonneberg Observatory, where he worked during the Second World War as a computer (performing calculations) and assistant observer in a long term sky patrol and field survey program.

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After the war he met the female astronomer Eva Rohlfs at Sonneberg Observatory and married her in 1952. His second marriage lasted only two years, because Eva died in 1954 in age of 41. During the 1950s Paul Ahnert advanced from an assistant observer to an astronomer with international reputation, who made important observations of variable stars and solar activity.

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He received an honorary doctor in astrophysics at the University of Jena in 1957. His name became well known in Germany, when he started to edit the "Kalender f?r Sternfreunde", an annual calendar of astronomical events. The first volume was printed in 1949. Paul Ahnert edited it for over 40 years until he retired from this task, aged 90, and passed the work to younger hands. Paul Ahnert died in age of 91 in Sonneberg (Free State Thuringia). The asteroid 3181 Ahnert is named in his honor.

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1897: 1897 was a common year starting on Friday (see link for calendar)....

February 27: February 27 is the 58th day of the year in the Gregorian Calendar. There are 307 days remaining, 308 in leap years....

1989: 1989 is a common year starting on Sunday of the Gregorian calendar. The world population growth in absolute numbers is believed to have been the highest ever around this time. http://www.census.gov/ipc/www/worldpop.html...

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