Editing Exoplanet (section)

=== Early speculations ===
{{More citations needed section|date=October 2024|reason=Claims of historical precidence should include secondary references, not just dates of publication.}}
{{Rquote |right |This space we declare to be infinite... In it are an infinity of worlds of the same kind as our own.|Giordano Bruno (1584)<ref>{{cite book |title=To Infinity and Beyond: A Cultural History of the Infinite |author=Eli Maor |chapter=Chapter 24: The New Cosmology |date=1987 |isbn=978-1-4612-5396-9 |publisher=Birkhäuser |location=Boston, MA |page=[https://archive.org/details/toinfinitybeyond0000maor/page/198 198] |chapter-url=https://books.google.com/books?id=v0btBwAAQBAJ&pg=PA198 |others=Originally in ''De l'infinito universo et mondi'' [''On the Infinite Universe and Worlds''] by Giordano Bruno (1584). |url=https://archive.org/details/toinfinitybeyond0000maor/page/198 }}</ref>}}

In the sixteenth century, the Italian philosopher [[Giordano Bruno]], an early supporter of the [[Nicolaus Copernicus|Copernican]] theory that Earth and other planets orbit the Sun ([[heliocentrism]]), put forward the view that fixed stars are similar to the Sun and are likewise accompanied by planets.

In the eighteenth century, the same possibility was mentioned by [[Isaac Newton]] in the "[[General Scholium]]" that concludes his ''[[Philosophiae Naturalis Principia Mathematica|Principia]]''. Making a comparison to the Sun's planets, he wrote "And if the fixed stars are the centres of similar systems, they will all be constructed according to a similar design and subject to the dominion of ''One''."<ref>{{Cite book |last = Newton|first = Isaac|author2 = I. Bernard Cohen |author3= Anne Whitman|title = The Principia: A New Translation and Guide|publisher = University of California Press|date=1999|orig-year=1713|page = 940|isbn = 978-0-520-08816-0}}</ref>

In 1938, D.Belorizky demonstrated that it was realistic to search for exo-Jupiters by using [[transit method|transit photometry]].<ref>[https://ui.adsabs.harvard.edu/abs/1938LAstr..52..359B/abstract Le Soleil, Etoile Variable],  D.Belorizky, 1938</ref>

In 1952, more than 40 years before the first [[hot Jupiter]] was discovered, [[Otto Struve]] wrote that there is no compelling reason that planets could not be much closer to their parent star than is the case in the Solar System, and proposed that [[Doppler spectroscopy]] and the [[transit method]] could detect [[super-Jupiter]]s in short orbits.<ref>{{cite journal|title= Proposal for a project of high-precision stellar radial velocity work|last=Struve|first= Otto |journal= The Observatory|volume=72|pages=199–200 |year=1952|bibcode = 1952Obs....72..199S }}</ref>