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Why are the globular clusters classified as population II stars?
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Why do globular clusters have no planets in then?
It is likely that many stars within a globular cluster may have planets.
Why do astronomers believe that globular clusters are made of old stars?
Astronomers believe the globular clusters are made of old stars because of the lack of heavy elements. The heavy element is very abundant in stars like our sun, so the theory is the globular cluster must be older and formed in a more primitive universe.
Are globular clusters small asteroid-like bodies that formed the building blocks of the planets?
Globular clustesr are clusters of stars - so they are much larger than planets or a solar system.
What are things in space?
EVERYTHING galaxies, nebulae, stars, planets, milky way, star clusters, globular clusters and much more
What is a cluster of stars that looks like a ball and contains up to 1 million stars called?
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 brightest stars in aging globular clusters will be?
The hottest stars. Generally, globular clusters contain mainly old stars, population II stars
Why are the stars in the globular clusters classified as population ll stars?
The first stars to form after the "Big Bang" were made just of Hydrogen and Helium. They were very large and died young, exploding to leave a little metal (heavier elements) in the universe - these stars are called "Population III" stars.The next stars to form incorporated a little metal from the older stars (but are still very low in heavy elements) and are called "Population II" stars. Stars in globular clusters are this sort of star (globular clusters are old and have not produced new stars for a long time). We can tell this form their metallicity and the Hertzsprung-Russell diagram for Globular clusters.Most stars contain a lot of heavy elements (high metallicity) and are quite young (like our Sun). These are called "Population I" stars.
What is the spherical region surrounding the disk of a spiral galaxy which contains globular clusters and reddish population II stars called?
The Galactic halo is the spherical region surrounding the disk of a spiral galaxy which contains globular clusters and reddish population II stars.
What are the two population stars in the milky way?
Population I stars are young and luminous like the Sun. Population II stars consist of globular clusters that are generally much older.
What is the difference between the milky way and globular clusters?
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.
Why do globular clusters have no planets in then?
It is likely that many stars within a globular cluster may have planets.
Which stars in globular clusters are believed to be examples of mergers?
Blue Stragglers!
How old are globular clusters in the Milky Way?
There's no definitive age for the globular clusters, but they are believed to consist of population II stars and therefore very old. As a ball park figure, they are probably around the 10 billion years old mark.
What type of star clusters has the greatest percentage of old stars?
a globular cluster
Why do astronomers believe that globular clusters are made of old stars?
Astronomers believe the globular clusters are made of old stars because of the lack of heavy elements. The heavy element is very abundant in stars like our sun, so the theory is the globular cluster must be older and formed in a more primitive universe.
What is a group of stars that may contain hundreds of thousands of stars?
Globular clusters and very small galaxies.
Are globular clusters small asteroid-like bodies that formed the building blocks of the planets?
Globular clustesr are clusters of stars - so they are much larger than planets or a solar system.
