The local group is about 10 million light years across and the andromeda galaxy is the most massive galaxy in it the milky way is the second most massive. Jupiter 69 911 km 43 441 miles 1 120 the size of earth saturn 58 232 km 36 184 miles 945 the.
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It s estimated that the milky way has between 100 400 billion stars.
Milky way planets in order of size. Its stellar disk is approximately 100 000 light years 30 kpc in diameter. The planets most of the satellites of the planets and the asteroids revolve around the sun in the same direction in nearly circular orbits. The smaller dwarf galaxies have around 10 billion stars and the larger galaxies can have as many as a trillion stars.
It is a spiral galaxy like the milky way but is 4 times as massive and is 2 million light years away. The milky way is approximately 890 billion to 1 54 trillion times the mass of the sun. The planetary system we call home is located in an outer spiral arm of the milky way galaxy.
To compare the relative physical scale of the milky way if the solar system out to neptune were the size of a us quarter 24 3 mm 0 955 in the milky way would be approximately the size of the contiguous united states. Our solar system consists of our star the sun and everything bound to it by gravity the planets mercury venus earth mars jupiter saturn uranus and neptune dwarf planets such as pluto dozens of moons and millions of asteroids comets and. The stars are arranged in a pinwheel pattern with four major arms and we live in one of them about two thirds of the way outward from the center.
It is approximately 1 000 light years 0 3 kpc thick. Assuming there are 200 billion stars in the milky way it can be hypothesized that there are 11 billion potentially habitable earth sized planets in the milky way rising to 40 billion if planets orbiting the numerous red dwarfs are included. Jupiter has just become the size of a large grapefruit and is five blocks away from the sun.
Saturn the size of an apple is ten blocks away uranus and neptune both lemons are twenty and thirty. We also have included the radii sizes relative to earth to help you picture them better. Our sun is one of at least 100 billion stars in the milky way a spiral galaxy about 100 000 light years across.
Our galaxy one of billions of galaxies known is traveling through intergalactic space. Most of the stars in our galaxy are thought to host their own families of planets. Galaxies range in size with the number of stars.
The milky way is average in size.
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