The temperature of a star directly influences its color. Stars emit light across various wavelengths, and the temperature determines the peak wavelength of their emitted radiation. This, in turn, gives stars their characteristic colors.

Here's how the temperature of a star affects its color:

1. Hot Stars (High Temperature):

- Hot stars have surface temperatures exceeding 10,000 Kelvin (K).

- They emit most of their energy in the blue and ultraviolet regions of the spectrum.

- These stars appear blue or bluish-white in color.

- Examples: Rigel (blue supergiant) and Spica (blue-white main sequence star).

2. Intermediate-Temperature Stars:

- These stars have surface temperatures ranging from approximately 5,000 K to 10,000 K.

- They emit significant radiation in the visible spectrum, appearing yellow or yellowish-white in color.

- Examples: The Sun (yellow main sequence star) and Capella (yellow giant star).

3. Cool Stars (Low Temperature):

- Cool stars have surface temperatures below 5,000 K.

- They emit most of their energy in the red and infrared regions of the spectrum.

- These stars appear orange or red in color.

- Examples: Betelgeuse (red supergiant) and Proxima Centauri (red dwarf).

In summary, the temperature of a star determines the dominant wavelength of its emitted light. Hotter stars are blue, intermediate-temperature stars are yellow or white, and cool stars are orange or red.