HD 43691 is a G-type star with magnitude +8.03 located approximately 260 light-years away in the constellation Auriga. This yellow star is about to stop thermonuclear hydrogen-fusion in its core and eventually expand to become a red giant.
In July 2007, the star is found to have a giant planet in orbit around it. It has minimum mass two and a half times that of Jupiter and orbits the star closer than Mercury to the Sun.
* List of extrasolar planets
1. ^ a b c d e van Leeuwen, F. (2007). "HIP 30057". Hipparcos, the New Reduction. http://webviz.u-strasbg.fr/viz-bin/VizieR-5?-out.add=.&-source=I/311/hip2&recno=29981. Retrieved 2010-03-06.
* "Image HD 43691". SIMBAD. http://aladin.u-strasbg.fr/AladinPreview?-c=06+19+34.6771%2B41+05+32.302&ident=HD++43691&submit=Aladin+previewer. Retrieved 2008-10-17.