Encounter at Farpoint

“Thou art notified that thy kind hath infiltrated the galaxy too far already. Thou art directed to return to thine own solar system immediately.”

Galaxy-class saucer separation at warp speed (Star Trek: The Next Generation “Encounter at Farpoint” S1E01)

Enterprise D separation sequence 

Encounter at Farpoint

“The hostile is now giving chase, sir. Accelerating fast.”