The Official Star of the Haylstorm / Danger wedding is KIC 011391496, also known as “Haylstorm Danger”. All wedding wishes are to be made upon this star. Its coordinates are:
R.A. = 19h 0m 48.12s (sky coordinate for longitude)
Dec. = 49° 15′ 14.5″ (sky coordinate for latitude)
You can find out more about it on its official webpage.