Stars are grouped by size. The groups are commonly named as: the Super Giants, Giants, Medium-size and the White dwarf. The sun belongs to the group of stars which are relatively small or the white dwarfs.
The detailed process by which such early galaxy formation occurred is a major open question in astronomy. Theories could be divided into two categories: top-down and bottom-up. In top-down theories (such as the Eggen-Lynden-Bell-Sandage [ELS] model), protogalaxies form in a large-scale simultaneous collapse lasting about one hundred million years. In bottom-up theories (such as the Searle-Zinn [SZ] model), small structures such as globular clusters form first, and then a number of such bodies accrete to form a larger galaxy.
Once protogalaxies began to form and contract, the first halo stars (called Population III stars) appeared within them. These were composed almost entirely of hydrogen and helium, and may have been massive. If so, these huge stars would have quickly consumed their supply of fuel and became supernovae, releasing heavy elements into the interstellar medium. This first generation of stars re-ionized the surrounding neutral hydrogen, creating expanding bubbles of space through which light could readily travel.
It all depends on the number of stars we are talking about:
The HR diagram is a graph that plots surface temperature vs. luminosity.
In a universe.
Hercules is a constellation - a group of stars, visible in April and May. It is not really a group of stars, it just looks like a group as seen from the Earth. Many will be close, others will be distant.
constellation is a group of stars with a name assigned to it ;
Mariners have historically used stars a directional guides. There's no need to carry a map when one appears every (clear) night in the sky. It is believed by serious scholars that the ancient Polynesians used the stars to find the island groups of Hawaii, Midway, and even Easter Island. A recognizable group of stars helps one find a particular star with which to steer one's course.
The word that is used for a group of stars in the night sky is a star cluster.
Just one, which is the Sun.
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Globular ClusterA huge group of stars that are close together is a star cluster. With many more stars it is a galaxy.
a group of the stars
A collective noun for a group of stars is a cluster of stars (small group) and a galaxy of stars (large group).
Globular ClusterA huge group of stars that are close together is a star cluster. With many more stars it is a galaxy.
Constallation
Yes. A group of stars called a galaxy. One of billions in the Universe. An awesome thing it is too. Truly awesome.
Hercules is a constellation - a group of stars, visible in April and May. It is not really a group of stars, it just looks like a group as seen from the Earth. Many will be close, others will be distant.
constellation is a group of stars with a name assigned to it ;
5 stars
A group of stars that form a pattern is a constellation. it forms many different patterns, such as Aries, Libra, Scorpio, Leo, Capricorn, etc.
A group of stars. Constellations aren't actually connected stars.