By analysing the oldest stars found.
The older the star, the older the Galaxy.
Harlow Shapley determined the center of the galaxy by studying the distribution and motion of globular clusters. By observing the positions and velocities of these clusters, he discovered that they were not evenly distributed in the sky but rather congregated towards a point in the constellation Sagittarius, indicating the center of the galaxy.
It is an answer created by Douglas Adams in the Hitchhiker's Guide to the Galaxy. It was supposedly the answer to 'Life, the Universe and Everything.' How accurate it is remains to be determined.
The size of a galaxy refers to its physical dimensions, typically measured in terms of its diameter or radius. Larger galaxies can contain billions to trillions of stars, while smaller galaxies may have fewer stars. Galaxy size can also provide clues about its age, structure, and evolutionary history.
The Andromeda Galaxy or M31 has been estimated to be 220,000 light years across. Our Galaxy, The Milky Way, is about 100,000 light years across.See link for more information.The latest estimates for the diameter is about 43,000 ly across.This is based on a 3.18 degree angle in the sky and a distance of 2.54 Mly.A big caveat here that this is only the visible part of the galaxy. Since a galaxy must be made up of a substantial amount of dark matter the true size of the galaxy cant be determined at the moment.
The look back time of an object is determined by how long it takes the light from that object, usually a star or galaxy, to reach an observer here on earth.
No. The color is determined by the star's temperature, not location.
God. He chose a nice shape, no?
That is unrelated to age. An irregular galaxy is one that has been distored by the gravity of nearby galaxies.
sombrero galaxy is 10 to 13 billion years old
Breeding stocks ages are told by the tattoo given at birth; but for a market pig, most pigs age is determined by their weight. Breeding stocks ages are told by the tattoo given at birth; but for a market pig, most pigs age is determined by their weight.
The Golden Age - The Asteroids Galaxy Tour song - was created on 2009-09-13.
Me
45
take it to a vet.
it is by carbon dating
dentists and vets can tell a horses age by its teeth
Mary's age is not provided in the question, so it cannot be determined.