Johann Adolf Repsold
Johann Adolf Repsold (born February 3, 1838 in Hamburg ; † September 1, 1919 there ) was an entrepreneur and designer of optical instruments in Hamburg and led the original family business to the top of the world under the name A. Repsold & Sons .
Life
Johann Adolf Repsold, known as Hans Repsold, was the third generation of the Repsold family of instrument makers . His grandfather Johann Georg Repsold had founded the company, his father Adolf Repsold had developed it under the name A. & G. Repsold into a respected optical and astronomical company. Johann Adolf Repsold took it over together with his brother Oscar in 1871 and called it A. Repsold & Sons . The brother held back in the management.
In the following years A. Repsold & Sons became one of the great astronomical instrument makers. The instruments sold worldwide. The largest instrument was the 14-meter refractor for the observatory in Pulkowo near St. Petersburg. Since there were no descendants who wanted to take over the business after the death of Johann Adolf Repsold, the Repsold workshops ended in 1919.
Johann Adolf Repsold was very interested in astronomical historiography. He published a two-volume history of astronomical instruments , as well as a detailed family chronicle.
On the Hamburg cemetery Ohlsdorf Johann Adolf Repsold was buried at Planquadrat K 4, 21–30 ( Bergstrasse , south of the cemetery museum). However, only the shared family grave of his brothers Carl and Oscar Repsold at K 4, 11–20 can be found.
Honors
In December 1885 he was elected a corresponding member of the Russian Academy of Sciences in Saint Petersburg . In 1887 he was elected a member of the German Academy of Sciences Leopoldina .
Work
| year | device | Focal length | opening | customer |
|---|---|---|---|---|
| 1871 | refractor | 13 ½ feet | Santiago de Chile | |
| 1874 | Meridian circle | 6 feet | Strasbourg observatory | |
| 1874 | photographic tube | German expedition to Venus | ||
| 1874 | Pathfinder | Strasbourg observatory | ||
| 1875 | refractor | 8 feet | 18 cm | Stockholm |
| 1875 | refractor | 16 feet | 29 cm | Potsdam observatory |
| 1878 | refractor | 13 feet | 23 cm | Nikolayev |
| 1879 | refractor | 21 feet | Strasbourg observatory | |
| 1879 | refractor | 21 feet | Milan observatory | |
| 1879 | refractor | 21 feet | Pulkovo observatory | |
| 1879 | Altazimuth | 5 feet | Strasbourg observatory | |
| 1881 | Passage instrument | 12.7 cm | National Astronomical Observatory of Japan (today's name) | |
| 1881 | refractor | 21 feet | Milan observatory | |
| 1882 | Heliometer | 8 feet | 15 cm | Yale University Observatory , New Haven (Connecticut) |
| 1884 | refractor | 14 m | 76 cm | Pulkovo observatory |
| 1886 | Heliometer | 6 feet | 15 cm | Leipzig observatory |
| 1887 | Heliometer | 8 feet | 18 cm | Cape Town Observatory |
| 1888 | Heliometer | 8 feet | 15 cm | Göttingen observatory |
| 1888 | Heliometer | 8 feet | 18 cm | Bamberg observatory |
| 1889 | refractor | 3.40 m | Potsdam observatory | |
| 1890 | Passage instrument | 1.20 m | Vienna-Ottakring observatory | |
| 1891 | refractor | 9 feet | ||
| 1891 | Heliostat | Potsdam observatory | ||
| 1894 | photographic refractor | 5 m | Copenhagen observatory | |
| 1894 | Heliometer | 9 ½ feet | 20 cm | Vienna observatory |
| 1895 | Siderostat | Stockholm observatory | ||
| 1898 | refractor | 12 m | 80 cm | Potsdam observatory |
| 1899 | Vertical circle | Odessa observatory | ||
| 1902 | Meridian circle | Kiel observatory | ||
| 1908 | Meridian circle | 7 feet | 19 cm | La Plata |
| 1908 | Meridian circle | 7 feet | 19 cm | Cordoba Observatory in Argentina |
| 1908 | Meridian circle | 7 feet | 19 cm | Santiago de Chile |
| 1908 | Meridian circle | 7 feet | 19 cm | Hamburg observatory |
| 1908 | refractor | 9 m | 60 cm | Hamburg observatory |
literature
- J. Schramm: Stars over Hamburg - The history of astronomy in Hamburg. 2nd revised and expanded edition, Kultur- & Geschichtkontor , Hamburg 2010, ISBN 978-3-9811271-8-8
- Paul Harzer: Johann Adolf Repsold , in: Vierteljahrsschrift der Astronomische Gesellschaft , 55th year, Engelmann, Leipzig 1920, p. 3ff.
Web links
- Genealogy Johann Adolf (Hans) Repsold at genealogy.net
Individual evidence
- ↑ JA Repsold: To the history of the astronomical measuring tools. 2 vols., Leipzig 1908 and 1914
- ^ JA Repsold: News about Adolf Repsold. Hamburg, 1900
- ^ JA Repsold: Increased news about the Repsold family and especially about Johann Georg Repsold. Hamburg, 1915
- ↑ according to the list of celebrities in Ohlsdorf cemetery
- ↑ see Category: Grave Carl and Oscar Repsold at Friedhof Ohlsdorf
- ^ Foreign members of the Russian Academy of Sciences since 1724. Johann Adolf Hans Repsold. Russian Academy of Sciences, accessed October 19, 2015 .
- ^ Member entry by Johann Repsold at the German Academy of Natural Scientists Leopoldina , accessed on November 24, 2015.
| personal data | |
|---|---|
| SURNAME | Repsold, Johann Adolf |
| ALTERNATIVE NAMES | Repsold, Hans |
| BRIEF DESCRIPTION | German designer and entrepreneur |
| DATE OF BIRTH | February 3, 1838 |
| PLACE OF BIRTH | Hamburg |
| DATE OF DEATH | September 1, 1919 |
| Place of death | Hamburg |