Jupiter is by far the heaviest - most massive - of all the planets in THIS solar system. However, there are other planets in other solar systems and most of them are bigger - a LOT bigger! - than Jupiter.
It doesn't make much sense to talk about "weight" here; what would you put the planet on, to weigh it? The most massiveplanet (in our Solar System) is Jupiter. Jupiter has about 300 times the mass of the Earth; it has more mass than all the other planets together.
Jupiter is easily the heaviest object in our solar system (and the largest).
None of the planets that scientist know is exactly 15 times more massive than earth, but the closet one is Saturn, it is 18 times more bigger than earth,
The planet with the highest mass is Jupiter, which is approximately 318 times more massive than Earth.
Jupiter is the largest and most massive planet in our solar system. It is over 300 times more massive than Earth and is known for its colorful atmospheric bands and swirling storms, including the famous Great Red Spot.
Brown dwarfs are substellar objects that are larger and more massive than planets like Jupiter. They are not massive enough to sustain nuclear fusion in their cores, which is a defining characteristic of stars. Jupiter, on the other hand, is a gas giant planet in our solar system.
Jupiter is the moss massive planet that revolves around the sun, with a mass of 1.8988 x 1027 kg. This is 234% more mass than the next massive planet, Saturn, which has a mass of 5.685 x 1026 kg.
All the planets revolve around the Sun. They are all massive, some are more massive than others.
Eris is a massive dwarf planet. It was discovered in 2005 and it is more massive than Pluto by 27 percent.
Uranus
Uranus
The Sun is not a planet, it is a Star. It is 332,946 times more massive than the Earth.
Jupiter, with a mass over 300 times that of Earth, fits this criterion.https://en.wikipedia.org/wiki/Planetary_mass
Earth
Neptune is more massive and therefore weighs more than mercury. Mercury is the smallest planet in our solar system while Neptune is the fourth largest and most massive planet.
None of the planets that scientist know is exactly 15 times more massive than earth, but the closet one is Saturn, it is 18 times more bigger than earth,
The planet with the highest mass is Jupiter, which is approximately 318 times more massive than Earth.
You might mean Pluto, but that's not a "planet" any more. Mercury is smaller (but more massive) than two moons. (See link)
In 2006 Pluto was degraded to the status of dwarf planet(there is another dwarf planet, Eris, that is more massive than Pluto).