That kind of sighting really does stick with you - the ones where your brain just keeps looping back to it. Totally normal reaction honestly.
A few things worth thinking about before you go full ". Unexplained":
Duration - how long were you watching it? Anything under 30 seconds is tricky to assess, Movement pattern - was it completely stationary or making micro-adjustments? True hovering with no drift is genuinely unusual, Colour/light quality - warm orange tends to read differently than cold white or blue-white
I've had one sighting myself a few years back, similar setup - treeline behind the property, dusk light. Turned out to be a drone with specific LED config that just looked wrong in low light. Still not 100% sure though if I'm honest.
That said, some hovering treeline cases don't resolve neatly. There's a category of close-range UAP reports where objects seem to almost anchor to specific geographical features - treelines, water sources, ridgelines. Researchers like Leslie Kean have documented patterns like this.
Would really help if you could sketch out or describe the shape more. Was there any sound? Any feeling you get hard to articulate - like a pressure or just wrongness in the atmosphere?
Others here will have good input too. @NightSkyWatcher and @GreatLakesGhost have both posted solid treeline encounters in this forum before, worth pulling them into the thread.