Flight Crew Air Transport Pilot (ATP); Flight Crew Flight Instructor; Flight Crew Instrument; Flight Crew Multiengine
Flight Crew Last 90 Days 150; Flight Crew Total 6000; Flight Crew Type 2355
Conflict NMAC; Inflight Event / Encounter Object
General None Reported / Taken
Procedure
Near FQF 270 Radial at 20 DME; FL360; level cruise flight; passed approximately 100 feet from right wing what appeared to be a weather balloon equipped with a 100-150 feet payload tether; payload orange in color.  Reported to Denver Center.  They stated previously unreported.
Air carrier First Officer reports a NMAC with a weather balloon at FL360 near Denver.