The patterns of stars seen in the sky are usually called constellations, although more acurately, a group of stars that forms a pattern in the sky is called an asterism. Astronomers use the term constellation to refer to an area of the sky.

Astronomers use the term constellation to refer to an area of the sky. The pattern or group of stars resembles different shapes in the sky are usually called constellations like orion, ursa major, ursa minor.
Asteroids are made up of metals and rocky material, asteroid belt is present in between Mars and Jupiter, while comets are made up of ice, dust and rocky material.

Constellations:
Constellations are groups of stars that form patterns or shapes in the sky. They have been named and identified for centuries by various cultures around the world. There are 88 officially recognized constellations in the sky, each with its own unique set of stars.

Celestial bodies:
Celestial bodies are objects in space, such as planets, stars, moons, asteroids, and comets. Stars are a type of celestial body that emits light due to nuclear reactions happening within them. Other celestial bodies, like planets, do not emit light but instead reflect light from the sun.

Asteroids:
Asteroids are small rocky bodies that orbit the sun. They are remnants from the early formation of the solar system and are primarily found in the asteroid belt between Mars and Jupiter. Asteroids can vary in size from a few meters to several hundred kilometers in diameter.

Comets:
Comets are icy bodies that also orbit the sun. When a comet gets closer to the sun, the heat causes the ice to vaporize and create a glowing coma around the nucleus. Comets often have long tails that point away from the sun due to the solar wind.
In summary, the different group of stars is known as constellations, while celestial bodies encompass a wider range of objects in space, including stars, planets, asteroids, and comets. Each of these groups plays a unique role in the study of astronomy and our understanding of the universe.