A full moon in the night sky looks like a large, round, bright white disc. It's the most luminous object in the sky after the sun, and it shines with a soft, silvery light.

Here's a more detailed description:

* Size and Shape: The moon appears roughly the same size as the sun in the sky, though it's much smaller in reality. It's perfectly round, with no visible craters or shadows.

* Color: The moon's color varies slightly depending on the atmosphere and weather conditions, but it's generally a bright white or pale yellow.

* Brightness: It's incredibly bright, casting noticeable shadows on the ground. The brightness of the full moon is so intense that it can sometimes make it difficult to see fainter stars.

* Location: The full moon appears in different parts of the sky throughout the night as it moves across the sky from east to west.

It's a truly beautiful sight to behold, and it's no wonder the full moon has inspired so much poetry, myth, and folklore throughout history.