What is XO-1b?
[[File:Exoplanet_Comparison_XO-1_b.png|thumb|right|XO-1b compared with Jupiter]] '''XO-1b''' is an [[extrasolar planet]]. It is approximately 536 [[Light year|light years]] away. It was discovered in 2006 by the [[XO Project]] which is an international team of professional and amateur astronomers.<ref>{{Cite journal|last1=McCullough|first1=P. R.|last2=Stys|first2=J. E.|last3=Valenti|first3=Jeff A.|last4=Johns-Krull|first4=C. M.|last5=Janes|first5=K. A.|last6=Heasley|first6=J. N.|last7=Bye|first7=B. A.|last8=Dodd|first8=C.|last9=Fleming|first9=S. W.|date=2006-09-10|title=A Transiting Planet of a Sun-like Star|url=https://iopscience.iop.org/article/10.1086/505651|journal=The Astrophysical Journal|language=en|volume=648|issue=2|pages=1228–1238|doi=10.1086/505651|arxiv=astro-ph/0605414|bibcode=2006ApJ...648.1228M|s2cid=8100425|issn=0004-637X}}</ref> They used the [[transit method]] to find XO-1b. It a little bit larger than [[Jupiter]]. It is a [[hot Jupiter]]. The [[Hubble Space Telescope]] found [[water]] in the [[atmosphere]] of the XO-1b.<ref>{{Cite web|last=Garner|first=Rob|date=2015-05-06|title=Hubble Traces Subtle Signals of Water on Hazy Worlds|url=http://www.nasa.gov/content/goddard/hubble-traces-subtle-signals-of-water-on-hazy-worlds|access-date=2020-09-23|website=NASA}}</ref><ref>{{Cite journal|last1=Deming|first1=Drake|last2=Wilkins|first2=Ashlee|last3=McCullough|first3=Peter|last4=Burrows|first4=Adam|last5=Fortney|first5=Jonathan J.|last6=Agol|first6=Eric|last7=Dobbs-Dixon|first7=Ian|last8=Madhusudhan|first8=Nikku|last9=Crouzet|first9=Nicolas|date=2013-08-20|title=INFRARED TRANSMISSION SPECTROSCOPY OF THE EXOPLANETS HD 209458b AND XO-1b USING THE WIDE FIELD CAMERA-3 ON THE HUBBLE SPACE TELESCOPE|url=https://iopscience.iop.org/article/10.1088/0004-637X/774/2/95|journal=The Astrophysical Journal|volume=774|issue=2|pages=95|doi=10.1088/0004-637X/774/2/95|arxiv=1302.1141|bibcode=2013ApJ...774...95D|s2cid=10960488|issn=0004-637X}}</ref> == References == {{reflist}} {{science-stub}} [[Category:Exoplanets]]