Stars and HR Diagrams

Front

What determines the life cycles of stars?

Back

The life cycles of stars are determined by their mass (size).

Front

Which star is the hottest?

Back

The Blue Star is the hottest.

Front

Knowing the color of a star also tells us its __________.

Back

temperature.

Front

What does a high mass star become after the main sequence?

Back

A high mass star becomes a supergiant.

Front

In which category is our Sun located?

Back

The Sun is located in the Main Sequence category.

Front

What is the main sequence in the context of stars?

Back

The main sequence is a continuous and distinctive band of stars that appears on plots of stellar color versus brightness.

Front

What is a supergiant star?

Back

A supergiant star is a very large star that is even more massive than a giant star, often found at the end of its life cycle.

Front

What is the relationship between a star's color and its temperature?

Back

A star's color indicates its temperature; blue stars are the hottest, while red stars are the coolest.

Front

What is luminosity in relation to stars?

Back

Luminosity is the total amount of energy emitted by a star per unit of time, often measured in watts.

Front

What is a black dwarf?

Back

A black dwarf is a theoretical stellar remnant that occurs when a white dwarf has cooled sufficiently that it no longer emits significant heat or light.