That depends on how much you want to know. You can learn a lot in just one month or one year of intense study but to learn everything there is to know it would take a very long time (like forever).
The diameter of the Milky Way galaxy is about 100,000 light-years. If the Sun and Earth were at the edge of the disk, we would still be within the galaxy's boundaries, so the diameter would remain around 100,000 light-years.
Our spiral galaxy of The Milky Way Galaxy is approximately 80,000 to 120,000 light-years across, and less than 7,000 light-years thick.
The Canis Major Dwarf Galaxy is currently considered to be the closest galaxy to the Milky Way. It is 25,000 light years from our solar system and 42,000 light years from the center of the Milky Way. Its status as a galaxy is still disputed in some scientific circles. If the Canis Major Dwarf Galaxy loses its galaxy status, then the Sagittarius Dwarf Spheroidal Galaxy would reacquire the title as the Milky Way's closest neighbor. It is it is roughly 50,000 light years from the center of the Milky Way.
About 25.4 cm. The Andromeda Galaxy is about 2.54 million light years from us. The Milky Way is about 100,000 light years across. So if 100,000 lights years equals 1 cm, then 2,540,000 / 100,000 = 25.4
Our Milky Way galaxy is 100,000 light years across.
The Andromeda Galaxy is the nearest spiral galaxy to our Milky Way, located about 2.5 million light-years away. It is home to about a trillion stars and has a diameter of approximately 220,000 light-years. Andromeda is on a collision course with the Milky Way and is expected to merge with our galaxy in about 4 billion years.
The Milky Way galaxy and the Andromeda galaxy are approximately 2.5 million light-years apart. This makes Andromeda the closest spiral galaxy to our own Milky Way. Both galaxies are part of the Local Group of galaxies.
our galaxy contains between 200- to 400-billion stars arranged in a giant disc shape. The diameter is 100,000 light years with an average thickness of 10,000 light years. The Earth is located about 28,000 light years from the center of the Milky Way.
Our sun is about 25,000 light years from the centre of the milky way.. It's about half way out from the centre of our galaxy.. So our galaxy from end to end would be 100,000 light years across..
Andromeda is the cloest galaxy to our own Milky Way Galaxy at 2.5 million light years away.
The nearest galaxy to our Milky Way is the Andromeda galaxy, which is about 2.5 million light years away (that is not including the Large and Small Magellanic Clouds, small, irregular "satellite" galaxies of our own).
The Milky Way galaxy is approximately 100,000 light-years in diameter.