10-12 billion years old.
Omega Centauri
In our Milky Way galaxy, globular clusters tend to be at the "outlying fringes" or "halo" of the galaxy, and seem to be largely made up of very old stars.
Yes its called the Local Cluster or Local Group, we have many minor Globular or Cluster Galaxies orbiting our own.
Planet earth is not in any of the approximately 150 globular clusters which are known to exist in our galaxy, the Milky Way. Our solar system is on one of the spiral arms of the Milky Way.
Constellation or "asterism". The difference is that "constellations" are officially recognized by the International Astronomical Union, while an "asterism" is any other pattern or grouping of stars.
These are called Globular Clusters.They are not galaxies but instead are dense groups of stars that are part of a galaxy.Our Milky Way galaxy is estimated to have about 180 Globular Clusters in it. Many of them are near the center of our galaxy but some also orbit at the outer edges.For comparison, a Globular Cluster can contain 100's of thousands of stars and up to 1 million stars. Our Milky Way galaxy contains all those Globular Clusters plus over 100 billion more stars.
The Milky Way is part of the Local Group Cluster, part of the Virgo Super Cluster.
the halo
Globular clusters are small groups of stars, while the milky way is a large galaxy containing hundreds of billions of stars, along with some of these clusters.
No, the Milky Way is a galaxy
Viewed from the Galactic North Pole, the Milky Way galaxy is moving anticlockwise.
Yes, billions and billions of them.