On the flight deck of an IAI Westwind 1123 Business Jet at KBFI.
The answer is a Gulfstream G-150 congrats to @rckarn and @brett_bye on guessing correctly.
The G-150 (the nose of which is shown above) is often times confused with the IAI Astra (below). The G-150 was developed from the Astra after Gulfstream bought Israeli Aircraft Industries. Another name for the Astra is a Gulfstream G-100. #Gulfstream#g150#g100#iai#israeliaircraftindustries#astra