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Which two factors determine the characteristics of a star?
The two main factors that determine the characteristics of a star are its mass and its age. The mass of a star determines its temperature, size, luminosity, and lifespan. A star's age affects its stage in its life cycle, such as whether it is a young, main-sequence star or an older red giant.
What class is Barnard's Star in?
Barnard's Star is a red dwarf star, belonging to the class M. This classification is based on its low surface temperature and spectral characteristics.
What a star topology uses a to connect all of the nodes?
A star topology uses a central network device, such as a hub or a switch, to connect all nodes in the network. Each node is connected directly to the central device, creating a centralized architecture that simplifies network management and troubleshooting.
What are the characteristics of rigel?
Rigel is a blue supergiant star located in the constellation of Orion. It is one of the brightest stars in the night sky and is approximately 860 light-years away from Earth. Rigel is part of a multiple star system, with a faint companion star orbiting around it.
What does the presence of molecular bands in the spectrum of a star indicate?
The presence of molecular bands in the spectrum of a star indicates the presence of molecules in its atmosphere. These bands can provide information about the composition and temperature of the star's atmosphere, and are used to study its characteristics and evolution.
