A crescent moon in the night sky looks like a thin, curved sliver of light. It's like a tiny, luminous banana hanging in the dark.

Here's a more detailed description:

* Shape: The crescent moon resembles a crescent, a curved shape like a slice of pie or a letter "C." The curved side points towards the sun.

* Brightness: The crescent moon is relatively faint compared to a full moon. It's a soft, gentle glow, especially when it's very young.

* Color: The moon itself doesn't produce light, it reflects sunlight. This reflected light can have a slightly yellowish hue, especially near the horizon.

* Orientation: The orientation of the crescent moon changes depending on its phase. The "tips" of the crescent will point towards the sun, so it's a good way to find the sun's location, even during the night.

Here's a fun fact: the illuminated part of the crescent moon is actually the portion of the moon's surface that's reflecting sunlight directly. The rest of the moon's surface is in shadow, but you might be able to faintly see the rest of the moon's shape due to earthshine, which is sunlight reflected off the Earth.