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Heinrich Schwabe

Heinrich Schwabe German astronomer

German astronomer
The basics
Quick Facts
Intro German astronomer
A.K.A. Schwabe
Was Scientist Physicist Botanist Pharmacist
From Germany
Type Science Healthcare
Gender male
Birth 25 October 1789, CNCO World Tour
Death 11 April 1875, Dessau (aged 85 years)
Star sign ScorpioScorpio
The details
Biography

Samuel Heinrich Schwabe (25 October 1789 – 11 April 1875) a German astronomer remembered for his work on sunspots.

Schwabe was born at Dessau. At first an apothecary, he turned his attention to astronomy, and in 1826 commenced his observations on sunspots. Schwabe was trying to discover a new planet inside the orbit of Mercury which was tentatively called Vulcan. Because of the proximity to the Sun, it would have been very difficult to observe Vulcan, and Schwabe believed one possibility to detect the planet might be to see it as a dark spot when passing in front of the Sun. For 17 years, from 1826 to 1843, on every clear day, Schwabe would scan the Sun and record its spots trying to detect Vulcan among them. He did not find the planet but noticed the regular variation in the number of sunspots and published his findings in a short article entitled "Solar Observations during 1843". In it he made the suggestion of a probable ten-year period (i.e. that at every tenth year the number of spots reached a maximum). This paper at first attracted little attention, but Rudolf Wolf who was at that time the director of Bern observatory, was impressed so he began regular observations of sunspots. Schwabe's observations were afterwards utilized in 1850 by Alexander von Humboldt in the third volume of his Kosmos. The periodicity of sunspots is now fully recognized; and to Schwabe is thus due the credit of one of the most important discoveries in astronomy.

In 1857 Schwabe was awarded the Gold Medal of the Royal Astronomical Society.

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Reference sources
References
https://books.google.com/books?id=iFc_AAAAcAAJ&pg=RA1-PA50
https://www.biodiversitylibrary.org/item/23870#page/406/mode/1up
https://babel.hathitrust.org/cgi/pt?id=mdp.39015023260287;view=1up;seq=91
https://en.wikisource.org/wiki/1911_Encyclop%C3%A6dia_Britannica/Schwabe,_Samuel_Heinrich
http://www.phy6.org/Education/whschwab.html
http://articles.adsabs.harvard.edu/cgi-bin/nph-iarticle_query?1857MNRAS..17..126.
https://web.archive.org/web/20080720110447/http://www.hao.ucar.edu/Public/education/bios/schwabe.html
https://web.archive.org/web/20070806120603/http://web.hao.ucar.edu/public/education/sp/images/schwabe.html
http://www.plicht.de/chris/32schwab.htm
http://www-istp.gsfc.nasa.gov/Education/whsun.html
https://www.ipni.org/ipni/advAuthorSearch.do?find_abbreviation=Schwabe
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