No, not all stars in a cluster form at the same time. While star clusters generally consist of stars that share a common origin and age, the formation of individual stars can occur over a range of timescales due to variations in local conditions, such as gas density and temperature. As a result, even within a single cluster, there can be a spread in ages among the stars. However, this spread is typically smaller than that found in more dispersed stellar populations.
Our sun formed in a cluster known as a stellar nursery, which is a cloud of gas and dust where stars are born. The sun likely formed in a cluster with many other stars around the same time, but has since drifted away from its birth cluster.
All stars in a cluster share a common origin, having formed from the same molecular cloud at approximately the same time. They typically have similar ages and chemical compositions, which results in them exhibiting comparable physical characteristics, such as temperature and luminosity. Additionally, they are gravitationally bound to each other, which influences their dynamics and interactions within the cluster.
Star clusters provide a way to study the evolution of stars because they contain stars of different ages. By analyzing the attributes of stars in a cluster, astronomers can observe how they change over time, providing insights into the various stages of stellar evolution. Comparing the properties of stars within a cluster, such as their temperature, luminosity, and composition, allows astronomers to track their evolution from formation to eventual demise.
A galaxy!
The slowest stars to form are typically the lowest-mass stars, often referred to as red dwarfs. These stars form in dense molecular clouds and take a long time—often millions to tens of millions of years—to accumulate enough mass for nuclear fusion to begin. Their formation is characterized by a gradual buildup of material, leading to a longer and more extended process compared to more massive stars, which can ignite their nuclear processes relatively quickly.
Our sun formed in a cluster known as a stellar nursery, which is a cloud of gas and dust where stars are born. The sun likely formed in a cluster with many other stars around the same time, but has since drifted away from its birth cluster.
All stars in a cluster share a common origin, having formed from the same molecular cloud at approximately the same time. They typically have similar ages and chemical compositions, which results in them exhibiting comparable physical characteristics, such as temperature and luminosity. Additionally, they are gravitationally bound to each other, which influences their dynamics and interactions within the cluster.
The time it takes for a cluster galaxy to form would be 13.99 BILLION years....
Because that's stage (while fusing hydrogen to form helium) when stars spend most of their time. Stars are red giants for much shorter times. So naturally we tend to find them on the H-R diagram where they spend most of their time.
A loose grouping of a few thousand stars is called an open star cluster. These clusters typically contain young stars that formed together from the same molecular cloud. Open star clusters are held together by gravity and can be disrupted over time by interactions with other objects in space.
Probably "moving group". If they're still gravitationally bound, then "open cluster" is a better term.
Star clusters provide a way to study the evolution of stars because they contain stars of different ages. By analyzing the attributes of stars in a cluster, astronomers can observe how they change over time, providing insights into the various stages of stellar evolution. Comparing the properties of stars within a cluster, such as their temperature, luminosity, and composition, allows astronomers to track their evolution from formation to eventual demise.
No, stars form at different times and in different locations throughout the universe. Some stars formed billions of years ago, while others are still forming today in regions like stellar nurseries. The formation of stars depends on factors such as the availability of gas and dust, gravitational collapse, and surrounding conditions.
In the form of celebrities; yes, in astronomy, EXTREMELY and I mean EXTREMELY RARE.
No. Stars move over time.
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The oak leaf cluster indicates that the decoration has been awarded a second time. Thus a bronze star with oak leaf cluster means the person won two bronze stars. Michael Montagne