What are the features/characteristics of Planet Biyo?

Answer 1

It is not invented, but it is not a planet. It is an asteroid named after Filipino Josette Biyo, a high school teacher cited for winning the 2002 Intel International Science and Engineering Fair in Louisville, Kentucky.

The complete name of the asteroid is 13241 Biyo. Some celestial bodies are named after persons.

Answer 2

It's a planet invented by a teacher named Dr. Biyo who lives in the Philippines. It was used in a book (A Trip to Planet Biyo) to encourage children in her country to strive toward a better education and raise their aspirations.