The correct answer is option 2: Constellation. Ursa Major, also known as the Big Bear, is a well-known constellation in the night sky. A constellation is a group or pattern of stars that appear to form a picture or shape when viewed from Earth.

Option 1, Star, is incorrect because Ursa Major is not a single star but a collection of stars that form a pattern.

Option 3, Planet, is incorrect because Ursa Major is not a planet. It is a group of stars and not a celestial body like a planet.

Option 4, Satellite, is incorrect because Ursa Major is not a man-made satellite orbiting the Earth. It is a natural arrangement of stars.

Therefore, the correct answer is option 2: Constellation.