yellow/orange, sphere/circle that flew across night sky ,slow speeds then simply vanished , had no blinking lights, was not an airplane

I saw what looked like a shooting star, blue streak white in the front, happened quickly, estimated half a second, then right after a round yellow/orange sphere/circle , seems like it was gliding across the night sky.  I'm sure it was not an aircraft.  It was going way too slow to be an aircraft.  The weird about, as it went across the night sky, it suddenly dissapeared, no cloud in sight to hide it from.  It just vanished, planes usually have the bright blinking lights, this yellow/orange sphere/circle did not.  It also had a constant glow as it flew across the sky.  The other 2 aircraft were airplanes.  I'd bet the pilots were wondering what that was too in sky.  My sheep ran towards there pen right after the glowing yellow/orange sphere appeared.
Witness elects to remain totally anonymous; provides no contact information.  PD