Right, so I'm going to be the voice of reason here before everyone jumps straight to ". It's aliens."
Living in Pendle, I've had a few nights where I've seen something odd hovering over the fields and convinced myself it was something significant. Nine times out of ten it turned out to be a drone, a Chinese lantern drifting on thermals, or honestly just my eyes playing tricks in low light conditions.
That said - the tenth time genuinely had me stumped, and I've never fully explained it to my own satisfaction.
What you need to do right now:
Note the exact time, date, and duration, Rough estimate of altitude and size (compare it to something - moon diameter, held-out thumb, etc.), Any sound, movement pattern, or light colour, Weather conditions that night
Did it hover completely stationary or was there drift? Stationary with no visible rotors and no sound is where it gets interesting. Drones struggle to hold a perfect hover in any kind of wind, and you can usually hear them.
I'd also ask - did you get any footage? Even shaky phone video is worth posting up. There are some decent people here who are good at ruling things out methodically rather than just running with the exciting explanation.
Not dismissing your experience at all, genuinely curious. The Pendle area has had some weird aerial reports over the years that never got properly documented because people either didn't record details or were too embarrassed to report them properly.
What did it actually look like?