The planet that appears blue-green is Uranus.
Why is Uranus Blue-Green?
Uranus's distinctive blue-green hue is a result of the presence of methane gas in its atmosphere. Here's a breakdown of the process:
- Sunlight Entry: Sunlight penetrates Uranus' atmosphere.
- Methane Absorption: Methane gas within the atmosphere absorbs the red portion of the sunlight.
- Reflection: The remaining light, primarily blue and green, is reflected back out from the cloud tops of Uranus.
This selective absorption and reflection of light is what gives Uranus its characteristic blue-green appearance, as detailed in the provided reference.
