I would say Jupiter because it has loads of facts that are interesting and even has the best colorful pics I have ever seen, but as we say, it is your answer, because this question asks for my opinion and there it is.
Another opinion:
Earth. Though we think we may know everything about this planet, there are still many undiscovered and unknown things about this planet that we humans still have to discover and understand.
Earth is pretty fascinating. Beyond earth, I would have to go with Titan. Titan has an atmosphere denser than ours.
Some of Saturn's other moons are also pretty fascinating, but I have always thought Titan was particularly cool. It is so wonderful we landed the Huygen's probe upon it.
I would say the Sun, because it keeps us alive.
No, Sirius is not part of our solar system. The only star in our solar system is the sun.
Most of the mass in the solar system is contained in the Sun. The sun makes up 99.85% of the total mass.
Nope, Solar System is part of the Galaxy.
Earth is part of the Inner Solar System.
Yes, our solar system is part of the galaxy which is called The Milky Way.
because of the stars because they are unique
The sun. Without the sun, there would have been no Solar system, just a bit of dust cloud floating around.
"Our solar system." The "part of our galaxy" that's in our solar system is the solar system.
No, the world is a part of the solar system
I am not sure about the percentage, but most of the mass is concentrated in the Sun.
No, Sirius is not part of our solar system. The only star in our solar system is the sun.
There is only one star that is part of our solar system. That is the sun. The stars we see are outside our solar system. "Solar" refers to our star. It holds the solar system together as it is through its gravity that everything orbits it, creating the solar system. So it is the key part of our solar system. That is why it is part of it.
Most of the mass in the solar system is contained in the Sun. The sun makes up 99.85% of the total mass.
The sun makes up 99.97% of the Solar System by mass, and gives the Solar System its name ("Sol" is the official name of The Sun).
Yes, Mars is part of our solar system.
Nope, Solar System is part of the Galaxy.
The major part of our Solar System is the Sun.