How do you determine the age of a star in a cluster? By placing the stars in a globular cluster on a Hertzprung-Russell diagram, astronomers can determine the cluster’s age by looking at the main sequence turnoff point and comparing it...
What does the main sequence turnoff point tell us? The main sequence turn off is defined as the point where stars turn off the main sequence (obviously) and begin the end of their life. On the H-R diagram of M3, we...
Which type of star cluster is shown open? A number of open clusters, such as the Pleiades, Hyades or the Alpha Persei Cluster are visible with the naked eye. Some others, such as the Double Cluster, are barely perceptible without instruments,...
How do you calculate the age of a cluster? By placing the stars in a globular cluster on a Hertzprung-Russell diagram, astronomers can determine the cluster’s age by looking at the main sequence turnoff point and comparing it with models of...
What is the age of the oldest globular cluster? The oldest globular clusters contain only stars less massive than 0.7 solar masses. These low mass stars are much dimmer than the Sun. This suggests that the oldest globular clusters are between...
Which star cluster is the youngest? Answer and Explanation: A star cluster whose brightest main sequence stars are white is the youngest. Which main sequence stars are brightest? The brightest stars are called supergiants. Star clusters are rich in stars just...
Which star cluster is the youngest? Answer and Explanation: A star cluster whose brightest main sequence stars are white is the youngest. Which of the star clusters is oldest? After decades of research, an analysis of light has finally identified the...
What causes the reddening of starlight? General characteristics. Interstellar reddening occurs because interstellar dust absorbs and scatters blue light waves more than red light waves, making stars appear redder than they are. This is similar to the effect seen when dust...
What remnant does a supernova Type II leave? This is a Type II supernova event – the core collapse of a massive star. The end product within the remnant depends upon the initial mass of the star, and is a neutron...
What is true about stars on the main sequence? Main sequence stars fuse hydrogen atoms to form helium atoms in their cores. About 90 percent of the stars in the universe, including the sun, are main sequence stars. These stars can...