Yes, Shapley used the distribution of globular clusters in the galaxy to show that the center of the Milky Way was located much farther away than previously thought. By studying the positions and distances of these clusters, he was able to demonstrate that the Sun was not at the center of the galaxy.
Our solar system is located in the Milky Way galaxy, which is classified as a spiral galaxy. It is estimated to be about 100,000 light-years in diameter and contains billions of stars, including our sun.
The Milky Way is a barred spiral galaxy composed of around 100 billion stars. Our solar system is located in one of the Milky Way’s spiral arms called the Orion Arm. The Milky Way is approximately 100,000 light-years in diameter. It is estimated that the Milky Way is about 13.6 billion years old. The center of the Milky Way contains a supermassive black hole called Sagittarius A*. The Milky Way is moving through space at a speed of about 600 km/s. It is thought that the Milky Way will collide with the Andromeda Galaxy in about 4 billion years. The Milky Way is home to a variety of astronomical objects including nebulae, star clusters, and black holes. It is estimated that there are more than 100 billion planets in the Milky Way galaxy. The light we see from the Milky Way is a combination of light emitted by its stars and light that is reflected by interstellar dust particles.
The Milky Way was long thought to be a "spiral" galaxy much like the Andromeda Galaxy . But recent observations indicate that the Milky Way is probably a "barred spiral" galaxy. Viewing the Milky Way from within as we do, it is somewhat difficult to get a clear picture.
Astronomers determined Earth's location within the Milky Way by studying the distribution of stars, gas, and dust in our galaxy. They used techniques such as star surveys, measuring distances to different parts of the galaxy, and studying the motions of objects in the Milky Way. By comparing these observations with models of the galaxy, they were able to pinpoint Earth's position within it.
The word galaxy is derived from Greek , not Latin. The Greeks used the word galaxias (milky one), or galaktikos (milky) orkyklos (circle) because it looks like a lighter colored band in the sky.
It is the galaxy in which our Sun is an orbiting star, along with another 200 to 400 billion stars. Astronomically, the Milky Way, since it is seen edge-on, defines the galactic plane in which the majority of its stars orbit.
One may find information about the Milky Way Galaxy in any number of places. Local libraries typically have books about outer space that include information about the Milky Way Galaxy, and often books specifically about it. Planetariums and science museums are also good sources of information about the Milky Way Galaxy. Sometimes gently used, outdated textbooks can be purchased from book sales, though the information found in these books may be inaccurate to an extent depending on how old the books are. NASA's website provides many sources of information on the Milky Way Galaxy as well.
There isn't "more gravity" in the Andromeda galaxy, because that's essentially a meaningless phrase. It used to be believed that the Andromeda galaxy was larger and more massive than the Milky Way. It's still thought to be larger (in terms of the number of stars), but the Milky Way may actually be more massive. It's hard for scientists to tell how exactly how big the Milky Way is because we're inside it and "can't see the forest for the trees".
A big lensed, reflactor telescope.
There are other galaxies visible from Earth. Among them are the SMC (Small Magellanic Cloud) and LMC (Large Magellanic Cloud), and the Andromeda Galaxy (M31). These are just the ones visible to the naked eye at nighttime, of course. There are over 100 billion visible by other means, including telescopes used on ground or orbiting Earth.
On a nice, clear, dark night, far from the lights of any city, if you have reasonably good eyes and have been outside letting them get used to the dark for some length of time, then in the constellation of Andromeda, near one corner of the 'great square' of Pegasus, you can see a dim, fuzzy patch of light, possibly almost as large as the full moon. That dim fuzzy patch is the nearest galaxy to our own Milky Way, usually called simply the "Andromeda Galaxy". It's the farthest object you can see with just your eyes and no optical help, and the only one outside of the Milky Way. All of the individual stars you see are members of our own galaxy.
A long, long time ago, people liked to name things around them. For instance, what we call our moon might be given a name like, "Luna". Our earth might be given a name like, "Gaeia" (guy-uh), and the big, hot thing might be given a name like, "Sol". In fact, all of these are true. So, the big, hot thing used to be called, "Sol" by early scientists (philosophers). Hence, the system of planets, comets, and rocks that orbit "Sol" is called the Sol-ar system, or just solar system. As for 'Luna', maybe you have heard of the Luna-r or Lunar Lander. Or a Luna-tic or lunatic. We now call that big, hot thing, "Sun" which is the same object as "Sol", and it is indeed a medium-size star. Our Solar system is PART OF the Milky Way galaxy. We're way out on one of the 'arms' of the Milky Way galaxy, nowhere near its center.
There is no particular English word used to denote three quarters of the galaxy.
The CPU used in a Samsung Galaxy Fit is a Qualcomm 600 MHz MSM 7227-1
Copernicus' model of the universe that puts the Sun at the center of the solar system was a major and important contribution to astronomy. Whether his laws are important to the study of space today is problematic
The Sun, also known as our star SOL is located way out at the edge of the Milky Way Galaxy. The Sun is at the center of our "Solar System" that is the little local group of planets that orbit the Sun, Mercury, Venus, Earth, Mars, Jupiter, Saturn, Neptune, Uranus, Pluto used to be considered a planet but they took that designation away a few years ago. The Milky Way The stellar disk of the Milky Way Galaxy is approximately 100,000 light-years (30 kiloparsecs, 9×1017 km) in diameter, and is considered to be, on average, about 1,000 ly (0.3 kpc) thick.[1]It is estimated to contain at least 200 billion stars[12] and possibly up to 400 billion stars,[13] the exact figure depending on the number of very low-mass stars, which is highly uncertain. This can be compared to the one trillion (1012) stars of the neighbouring Andromeda Galaxy.[14] The stellar disc does not have a sharp edge, a radius beyond which there are no stars. Rather, the number of stars drops smoothly with distance from the centre of the Galaxy. Beyond a radius of roughly 40,000 ly (12 kpc) the number of stars drops much faster with radius,[15] for reasons that are not understood. Extending beyond the stellar disk is a much thicker disk of gas. Recent observations indicate that the gaseous disk of the Milky Way has a thickness of around 12,000 ly (3.7 kpc)-twice the previously accepted value.[16] As a guide to the relative physical scale of the Milky Way, if it were reduced to 100 meters (110 yd) in diameter, the Solar System, including the hypothesized Oort cloud, would be no more than 1 millimeter (0.039 in) in width, or a grain of sand in a football field. The Galactic Halo extends outward, but is limited in size by the orbits of two Milky Way satellites, the Large and the Small Magellanic Clouds, whose perigalacticon is at about 180,000 ly (55 kpc).[17] At this distance or beyond, the orbits of most halo objects would be disrupted by the Magellanic Clouds, and the objects would likely be ejected from the vicinity of the Milky Way.