What is WASP-17b?
[[File:Exoplanet_Comparison_WASP-17_b.png|thumb|right|WASP-17b compared with Jupiter]] '''WASP-17b''' is an [[exoplanet]]. It is found in the [[constellation]] [[Scorpius]]. It orbits the star [[WASP-17]]. Its discovery was announced on 11 August 2009.<ref>{{Cite journal|last1=Anderson|first1=D. R.|last2=Hellier|first2=C.|last3=Gillon|first3=M.|last4=Triaud|first4=A. H. M. J.|last5=Smalley|first5=B.|last6=Hebb|first6=L.|last7=Cameron|first7=A. Collier|last8=Maxted|first8=P. F. L.|last9=Queloz|first9=D.|date=2010-01-20|title=WASP-17b: AN ULTRA-LOW DENSITY PLANET IN A PROBABLE RETROGRADE ORBIT|url=https://iopscience.iop.org/article/10.1088/0004-637X/709/1/159|journal=The Astrophysical Journal|volume=709|issue=1|pages=159–167|doi=10.1088/0004-637X/709/1/159|arxiv=0908.1553|bibcode=2010ApJ...709..159A|s2cid=53628741|issn=0004-637X}}</ref> It is the first [[planet]] that was discovered to have a [[retrograde orbit]]. On 3 December 2013, scientists working with the [[Hubble Space Telescope]] found [[water]] in the [[atmosphere]] of WASP-17b.<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=Mandell|first1=Avi M.|last2=Haynes|first2=Korey|last3=Sinukoff|first3=Evan|last4=Madhusudhan|first4=Nikku|last5=Burrows|first5=Adam|last6=Deming|first6=Drake|date=2013-12-03|title=EXOPLANET TRANSIT SPECTROSCOPY USING WFC3: WASP-12 b, WASP-17 b, AND WASP-19 b|url=https://iopscience.iop.org/article/10.1088/0004-637X/779/2/128|journal=The Astrophysical Journal|volume=779|issue=2|pages=128|doi=10.1088/0004-637X/779/2/128|arxiv=1310.2949|bibcode=2013ApJ...779..128M|hdl=2060/20140016974|s2cid=52997396|issn=0004-637X}}</ref> == References == {{reflist}} {{science-stub}} [[Category:Exoplanets]]