Gustav Müller, Date of Birth, Place of Birth, Date of Death
TweetGustav Müller
German astronomer
Date of Birth: 07-May-1851
Place of Birth: Świdnica, Lower Silesian Voivodeship, Poland
Date of Death: 07-Jul-1925
Profession: astronomer
Zodiac Sign: Taurus 
About Gustav Müller
- Karl Hermann Gustav Müller (May 7, 1851–July 7, 1925) was a German astronomer. He was born in Schweidnitz, Silesia to a merchant father; his father died when Gustav was six.
- In 1870 he entered the University of Leipzig, then transferred to the University of Berlin two years later.
- He was awarded a Ph.D.
- in 1877 with a thesis on the subject of micrometer screws.
- Thereupon he became an assistant at the Astrophysical Observatory of Potsdam.
- His primary career focus became the spectrum of the Sun and celestial photometry.Between 1880–82, he assisted Hermann Carl Vogel in building a catalog of stellar spectra.
- In 1877 he began making photometric observations of the planets and their atmospheres.
- He led the German expedition to Hartford, Connecticut to observe the transit of Venus in 1882.
- In 1886, he began a collaboration with Paul Kempf to assemble the Potsdam Durchmusterung, which was a stellar catalogue of all stars in the northern hemisphere with a magnitude of 7.5 or brighter.
- In 1897 he published the manual Die Photometrie der Gestirne (The Photometry of Stars).
- Between 1900 and 1915, he and Hartwig produced a three volume catalogue of 1,687 variable stars.Between 1896 and 1924, he served as a secretary of the Astronomische Gesellschaft.
- In 1918 he was elected to the Prussian Academy of Sciences, and he would also become an associate of the Royal Astronomical Society in England.
- From 1917–1921 he was the director of the Astrophysical Observatory at Potsdam.
- Due to legal requirements, he retired in 1921 at the age of seventy.
- He was married three times and had seven children.
- One son was killed during World War I and a second in the aftermath.
- His son Rolf became an astronomer at the Potsdam Observatory.
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