Saw a spaceship like aircraft hovering in the sky with green and blue lights

When driving into my street, I immediately noticed a flying and hovering spaceship/aircraft. I immediately pointed it out to my dad, we both knew instantly it wasn’t an airplane. It had a weird shape to it. There were two triangle like shapes, with a thin vertical base, connecting them, like how an aircraft has its long vertical base, with winds. This didn’t have wings, it had a weird triangle like shape on each side. Very very prominent green and blue lights all over the aircraft. I told my dad to stop the car before we were just about to go into the driveway. We stopped and looked at it for a minute. Then we went into the house, told my mum and we all went up stairs to watch it for a few minutes. It kept its green and blue lights however got further away. Afterwards, we all watched this object towards the west however it may have been a star. It kept getting dimmer, then extremely bright, then fading away, disappointing and then getting very bright again. This one may be a start/planet. But the aircraft I seen was 100% not a star or anything like that. It felt low down too. It made no noise either. It was at a low height for airplanes and did not move whilst we watched it. I’m extremely confident this is a UFO, I knew it and said it straight away. The aircraft was pointed west, it did actually look like it wasn’t too far away from my house however that could be decieving.