May have to break out the stop watch but in angle 1 it seems to hang over the dome much longer before shooting up than angle 2.
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I've seen this type of "object" before and it appears almost exactly like what an out of focus star appears like, in real time, through a camera attatched to an optical telescope, but viewed on a computer screen. I would described it as a almost slow boiling orb or pulsating point of light, which seems almost alive or fluid.
With a camera, connected to an optical telescope, viewed through a computer screen it's very easy to "make" a star do this, by simply taking taking the star out of focus.
I'm not saying this is what is seen here, I am only saying this appears almost exactly like an out of focus star, viewed in the configuration I described above.
A glowing orb would light up the top of the dome. Hoax...