Celestial object A is composed of 92.1 percent hydrogen and 7.8 percent helium while celestial object B is made up of ice, frozen carbon dioxide, rock and dust what is celestial object A

Answer: celestial body A is most probably a star.

Step-by-step explanation:

The sun is mostly composed of the elements hydrogen (H) and helium (He). By mass the composition of the sun is about 75 percent hydrogen and 25 percent helium. The sun is a star in our solar system and stars like the sun need a lot hydrogen for generating their enermous energy from fission of hydrogen atoms into helium atom.