Oh no! Another alien probe

[Anomalocaris]

Why?

If it formed around its parent star, then it was in an elliptical orbit to begin with.  To go from an elliptical orbit (E < 0, negative energy, where K < U, "kinetic energy is less than potential") to a hyperbolic orbit (E > 0, where K > U) would require some interaction within its home system.  And, then, it would need to be expelled in such a way as to intersect our Sun in its galactic orbit around the Milky Way at around 250 km/s.  Given the "local frame of rest", it seems unusual that any natural object could gain enough energy to, 1) escape its parent star, and 2) to have an intersecting orbit with a neighboring stellar system.

But, "extraordinary claims demand extraordinary evidence" (unless, of course, one is a Christian or Muslim).

P.S.  Local standard of rest:

https://en.wikipedia.org/wiki/Local_standard_of_rest

1. Local standard of rest only broadly describe only the motion of local stars that formed from the ambient gas and dust that already orbit normally in the main disk plane of the spiral arms, and which since their formation have not undergone close gravitational interactions with other nearby stars.

2. Even normal local stars can acquire appreciable atypical motion components if it had undergone close gravitational interaction with other stars

3. Even in the local region there are stars that orbit in retrograde motion around the Milky Way compared to the sun, in addition to have high outbid plane component to their motions. These stars would have very high relative velocities with respect to the sun, and any escapee from these star systems can intercept our solar system at high relative velocities. These stars probably came from globular clusters or captured and disrupted satellite galaxies.