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194:. He also took an interest in astronomy and botany and was forced to stop studies when his grandfather Häseler fell ill. After the death of Häseler in 1812, Schwabe was forced to take over the family pharmacy business and the family became prosperous. He spent his spare time in scientific pursuits but it was only after selling off the business that he began to attend to scientific activities fulltime.
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264:. 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. Data from his notes and 8486 drawings has been digitized and analyzed. They have helped fill in gaps in the data collected by Rudolf Wolf from 1848. Schwabe also made observations of the
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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 any new planet among them. He kept notes but was not interested in publishing his results. His first note was a letter to
Heinrich Schumacher which was published
42:
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Schwabe was involved in founding a natural history society in Dessau where he served as its president. He contributed many mineral specimens to the collections of the society. In 1838 and 1839 he published his notes on botany in two volumes under the title
165:. He observed sunspots and made drawings of them from 1825 to 1867 and suggested in 1838 that there may be a ten-year cycle of sunspot activity. He also took an interest in botany and was a founding member of a natural history society in
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Johann H. G. Häseler (1740-1812) and he too trained to be one in 1806 by joining the Dessau
Mohrenapotheke owned by Häseler. After about three years he began to study at the University of Berlin training in pharmacy under
858:
333:
Sheehan, William (2014). "Schwabe, Samuel
Heinrich". In Hockey, Thomas; Trimble, Virginia; Williams, Thomas R.; Bracher, Katherine; Jarrell, Richard A.; Marché, Jordan D.; Palmeri, JoAnn; Green, Daniel W. E. (eds.).
447:"Die in der nachfolgenden Tabelle enthaltenen Zahlen lassen wohl keinen Zweifel übrig, daß wenigstens vom Jahre 1826 bis 1850 eine Periode der Sonnenflecken von ohngefähr 10 Jahren in der Art statt gefunden hat: … "
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From p. 85: "The numbers contained in the following table leave no doubt that, at least from the year 1826 to 1850, the occurrence of spots has been so far characterized by periods of ten years, … "
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472:
421:"Vergleicht man nun die Zahl der Gruppen und der flecken-freien Tage mit einander, so findet man, dass die Sonnenflecken eine Periode von ungefähr 10 Jahren hatten … "
449:(The numbers contained in the following table leave no doubt that at least from the year 1826 to 1850, a period for sunspots of about 10 years or so has occurred: … )
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292:
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229:, it would have been very difficult to observe such a planet, and Schwabe believed one possibility to detect a new planet might be to see it during its
423:(If one compares the number of groups and the sunspot-free days with one another, then one finds that the sunspots had a period of about 10 years … )
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and published his findings in a short article entitled "Solar
Observations during 1843". In it he made the suggestion of a probable ten-year
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in Dessau and the honor influenced
Schwabe to bequeath his notes to the Royal Astronomical Society which elected him as a member in 1868.
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observatory, was impressed so he began regular observations of sunspots. Schwabe's observations were afterwards utilized in 1850 by
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to map the Moon. From 1829 he was completely involved in scientific work. Schwabe was looking for a theoretical planet inside the
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246:(i.e. that at every tenth year the number of spots reached a maximum). This paper at first attracted little attention, but
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443:] (in German). Vol. 3. Stuttgart and Tübingen, (Germany): J. G. Cotta'scher Verlag. pp. 401–402.
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from 30 October 1825. In 1826 he obtained a better telescope, a 4.8-in. Fraunhofer refractor that was used by
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Address delivered by the
President of the RAS on presenting the Gold Medal of the Society to M. Schwabe
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of
Jupiter and made notes of it in 1831 although these were only noticed and published in 1899.
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Schwabe obtained his first telescope through a lottery in 1825 and began his observations on
705:. Historischen Kommission bei der Bayerischen Akademie der Wissenschaften. pp. 159–161.
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560:"Sunspot positions and sizes for 1825–1867 from the observations by Samuel Heinrich Schwabe"
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238:(no. 495). Although he did not find any planet transiting the solar disc he noticed the
181:, Germany, where his father was a physician to the duke. His mother was the daughter of
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761:. Vol. 24 (11th ed.). Cambridge University Press. pp. 387–388.
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461:. Vol. 4. New York, New York, USA: Harper & Brothers. p. 85.
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Humboldt, Alexander von; Otte, E.C., trans.; Paul, B.H., trans. (1868).
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Leussu, Raisa; Usoskin, Ilya G.; Arlt, Rainer; Mursula, Kalevi (2013).
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Arlt, R.; Leussu, R.; Giese, N.; Mursula, K.; Usoskin, I. G. (2013).
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This article incorporates text from a publication now in the
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Excerpts from Solar
Observations During 1843 by Heinrich Schwabe
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Recipients of the Gold Medal of the Royal
Astronomical Society
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611:"Inconsistency of the Wolf sunspot number series around 1848"
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Cosmos: A Sketch of a
Physical Description of the Universe
157:(25 October 1789 – 11 April 1875) was a German amateur
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Chris Plicht "Schwabe, Samuel Heinrich (1789 - 1875)"
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GĂĽnther, Siegmund (1891). "Schwabe, Heinrich Samuel".
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Cosmos: Outline of a physical description of the world
503:"The sunspot observations by Samuel Heinrich Schwabe"
393:[Observations of the sun in the year 1843].
302:is used to indicate this person as the author when
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564:Monthly Notices of the Royal Astronomical Society
436:Kosmos: Entwurf einer physischen Weltbeschreibung
674:Journal of the British Astronomical Association
340:(2 ed.). New York, NY: Springer New York.
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471:: CS1 maint: multiple names: authors list (
281:Gold Medal of the Royal Astronomical Society
123:Gold Medal of the Royal Astronomical Society
240:regular variation in the number of sunspots
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337:Biographical Encyclopedia of Astronomers
276:, describing nearly 2000 plant species.
702:Allgemeine Deutsche Biographie. Band 33
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788:HAO "S. Heinrich Schwabe (1789-1875)"
783:HAO "S. Heinrich Schwabe (1789-1875)"
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250:who was at that time the director of
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864:Foreign members of the Royal Society
670:"Heinrich Samuel Schwabe, 1789–1875"
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391:"Sonnenbeobachtungen im Jahre 1843"
225:. Because of the proximity to the
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433:Humboldt, Alexander von (1850).
279:In 1857 Schwabe was awarded the
854:19th-century German astronomers
717:International Plant Names Index
192:Sigismund Friedrich Hermbstädt
1:
283:. The medal was presented by
27:German astronomer (1789–1875)
615:Astronomy & Astrophysics
812:Reprints of Flora Anhaltina
646:10.1051/0004-6361/201322373
258:in the third volume of his
161:remembered for his work on
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389:Schwabe, Heinrich (1844).
849:People from Dessau-RoĂźlau
507:Astronomische Nachrichten
395:Astronomische Nachrichten
354:10.1007/978-1-4419-9917-7
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753:Schwabe, Samuel Heinrich
415:10.1002/asna.18440211505
236:Astronomical Nachrichten
188:Martin Heinrich Klaproth
758:Encyclopædia Britannica
637:2013A&A...559A..28L
155:Samuel Heinrich Schwabe
34:Samuel Heinrich Schwabe
18:Samuel Heinrich Schwabe
814:(subscription needed)
668:Bean, Michael (1975).
537:10.1002/asna.201111601
453:English translation:
256:Alexander von Humboldt
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201:Grave stone in Dessau
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587:10.1093/mnras/stt961
177:Schwabe was born in
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529:2011AN....332..805A
491:, pp. 387–388.
445:From pp. 401–402:
407:1844AN.....21..233S
346:2014bea..book.....H
293:author abbreviation
800:2012-03-21 at the
285:Richard Carrington
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501:Arlt, R. (2011).
363:978-1-4419-9916-0
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133:Scientific career
71:Holy Roman Empire
16:(Redirected from
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680:: 532–533.
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221:, known as
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833:Categories
315:References
183:apothecary
159:astronomer
55:1789-10-25
655:0004-6361
628:1310.8443
596:1365-2966
577:1305.7400
545:0004-6337
520:1110.3620
467:cite book
143:astronomy
821:Volume 2
818:Volume 1
798:Archived
207:sunspots
163:sunspots
113:sunspots
88:Dessau,
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682:Bibcode
633:Bibcode
621:: A28.
525:Bibcode
403:Bibcode
342:Bibcode
298:Schwabe
231:transit
219:Mercury
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304:citing
261:Kosmos
244:period
223:Vulcan
179:Dessau
167:Dessau
139:Fields
126:(1857)
119:Awards
104:German
63:Dessau
623:arXiv
572:arXiv
515:arXiv
439:[
215:orbit
651:ISSN
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473:link
358:ISBN
252:Bern
190:and
78:Died
49:Born
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641:doi
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234:in
227:Sun
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