Cautionary note about HD 164595
According to this published source
http://www.openexoplanetcatalogue.com/planet/HD%20164595%20b/
this planet is well outside this star's habitable zone. Also, my most up-to-date reference, the Brych Great Atlas of the Sky, shows this star as a binary, although I have been unable to find any confirmation of this in any of the professional publications I have access to, either in my library or the internet.
Perhaps the excitement over this report has been a bit premature.