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Gyldén was the son of Nils Abraham Gyldén, Professor of Classical philology at the University of Helsinki and baroness Beata Sofia Wrede. He spent his student years at his father's university, graduating as a filosofie magister from the Faculty of Physics and Mathematics in 1860. In 1871 he was called by the Royal Swedish Academy of Sciences to be its astronomer and head of the Stockholm Observatory. From 1872 he was a member of the Academy. In 1885 he became foreign member of the Royal Netherlands Academy of Arts and Sciences.
- Hockey, Thomas (2009). The Biographical Encyclopedia of Astronomers. Springer Publishing. ISBN 978-0-387-31022-0. Retrieved August 22, 2012.
- "J.A.H. Gyldén (1841 - 1896)". Royal Netherlands Academy of Arts and Sciences. Retrieved 19 July 2015.
- Schmadel, Lutz D. (2007). Dictionary of Minor Planet Names – (806) Gyldénia. Springer Berlin Heidelberg. p. 75. ISBN 978-3-540-00238-3. Retrieved February 2016. Check date values in:
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