Paul Friedrich Ferdinand Kempf (3 June 1856 – 16 February 1920) was a German astronomer. In 1878 was awarded a doctorate in astronomy from the Humboldt University of Berlin with a thesis titled Untersuchungen über die Ptolemäische Theorie der Mondbewegung (Investigations into the Ptolemaic theory of lunar movement). On 1 July the same year he became an assistant at the Astrophysical Institute Potsdam.
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| - بول كيمف (ar)
- Paul Kempf (de)
- Πάουλ Κεμπφ (el)
- Paul Kempf (fr)
- Paul Kempf (en)
- Paul Kempf (sv)
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| - Ο Πάουλ Φρήντριχ Φέρντιναντ Κεμπφ (Paul Friedrich Ferdinand Kempf, 3 Ιουνίου 1856 – 16 Φεβρουαρίου 1920) ήταν Γερμανός αστρονόμος. (el)
- بول كيمف (بالإنجليزية: Paul Kempf ) (و. 1856 – 1920 م) هو عالم فلك توفي عن عمر يناهز 64 عاماً. (ar)
- Paul Friedrich Ferdinand Kempf (* 3. Juni 1856 in Berlin; † 16. Februar 1920 in Potsdam) war ein deutscher Astronom. (de)
- Paul Friedrich Ferdinand Kempf (né le 3 juin 1856 et mort le 16 février 1920) est un astronome allemand. (fr)
- Paul Friedrich Ferdinand Kempf (3 June 1856 – 16 February 1920) was a German astronomer. In 1878 was awarded a doctorate in astronomy from the Humboldt University of Berlin with a thesis titled Untersuchungen über die Ptolemäische Theorie der Mondbewegung (Investigations into the Ptolemaic theory of lunar movement). On 1 July the same year he became an assistant at the Astrophysical Institute Potsdam. (en)
- Paul Friedrich Ferdinand Kempf, född 3 juni 1856 i Berlin, död 16 februari 1920, var en tysk astronom. Kempf blev 1878 assistent, 1886 observator och 1894 huvudobservator vid astrofysikaliska observatoriet i Potsdam. Han utförde bland annat värdefulla arbeten över Jupitersmassan, över nebulosor och stjärnhopar samt meteorologiska observationsarbeten. (sv)
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| - Ο Πάουλ Φρήντριχ Φέρντιναντ Κεμπφ (Paul Friedrich Ferdinand Kempf, 3 Ιουνίου 1856 – 16 Φεβρουαρίου 1920) ήταν Γερμανός αστρονόμος. (el)
- بول كيمف (بالإنجليزية: Paul Kempf ) (و. 1856 – 1920 م) هو عالم فلك توفي عن عمر يناهز 64 عاماً. (ar)
- Paul Friedrich Ferdinand Kempf (* 3. Juni 1856 in Berlin; † 16. Februar 1920 in Potsdam) war ein deutscher Astronom. (de)
- Paul Friedrich Ferdinand Kempf (3 June 1856 – 16 February 1920) was a German astronomer. In 1878 was awarded a doctorate in astronomy from the Humboldt University of Berlin with a thesis titled Untersuchungen über die Ptolemäische Theorie der Mondbewegung (Investigations into the Ptolemaic theory of lunar movement). On 1 July the same year he became an assistant at the Astrophysical Institute Potsdam. Early in his career as an astronomer he aided German solar astronomer Gustav Spörer in his work to observe sun spot activity. Kempf joined an 1882 German expedition to Chile to observe the transit of Venus across the Sun. He was then part of solar eclipse missions to Russia in 1887 and 1914. In 1886, he was promoted to full astronomer and began a collaboration with his friend, German astronomer Gustav Müller to perform a massive survey of northern stars with magnitudes brighter than 8.5 found in the Bonner Durchmusterung. This work was published between 1894 and 1906, with the completed Potsdamer Photometrische Durchmusterung appearing in 1907. In 1894 he was named as the principal observer at Potsdam. Kempf became secretary to the Astronomische Gesellschaft in 1914, then added the job of treasurer, holding both posts until his death. He was survived by his wife, Helene Marie Emilie Kempf, who became one of the first two female members of the Astronomische Gesellschaft in 1921. (en)
- Paul Friedrich Ferdinand Kempf (né le 3 juin 1856 et mort le 16 février 1920) est un astronome allemand. (fr)
- Paul Friedrich Ferdinand Kempf, född 3 juni 1856 i Berlin, död 16 februari 1920, var en tysk astronom. Kempf blev 1878 assistent, 1886 observator och 1894 huvudobservator vid astrofysikaliska observatoriet i Potsdam. Han utförde bland annat värdefulla arbeten över Jupitersmassan, över nebulosor och stjärnhopar samt meteorologiska observationsarbeten. Hans viktigaste arbeten var emellertid de, som utfördes i förening med Gustav Müller. Dessa båda astronomer publicerade tillsammans i olika facktidskrifter en mängd astrofysikaliska avhandlingar, särskilt över variabla stjärnor, samt de i Potsdamobservatoriets publikationer intagna stora verken: Wellenlängen von 300 Linien im Sonnenspektrum (1886), Untersuchungen über die Absorption des Sternenlichtes in der Erdatmosphäre, angestellt auf dem Aetna und in Catania (1898) och Photometrische Durchmusterung des nördlichen Himmels (fem band, 1894-1906), det sistnämnda innehållande noggranna fotometriska undersökningar och färgbestämningar för alla fixstjärnor t.o.m. storleksklassen 7,5. (sv)
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