Typically irregular galaxies have the oldest stars
The oldest stars in a galaxy are usually located towards the centre. Also known as the bulge.
The oldest stars are classified as population III stars [See related question]
The oldest stars are classified as population III stars [See related question]
A galaxy contains billions of stars. A universe contains billions of galaxies.
well the galaxy is something with stars in and the universe is a living environment i guess hope that helps!
trillions If our galaxy with 2*1011 (two hundred billion) stars is an average size galaxy. and there are as many galaxies in the Universe as there are stars in our galaxy, then there are possibly 4*1022 stars in the Universe. But that is just a guess. There are most certainly more than 1018 stars.
they are located in the middle of the galaxy
By analysing the oldest stars found.The older the star, the older the Galaxy.
biggest to smallest : universe, galaxy, star/solar system, planet, moon. The Universe is everything that exists and a galaxy is a cluster of billions of stars and then planets rotate around stars and moons rotate around planets.
The Virgo Cluster. Possible.
A "Galaxy"
No. The universe contains billions of galaxies including our own, and each galaxy contains billions of stars.