B-type stars are very luminous and blue. As O- and B-type stars are so energetic, they only live for a relatively short time. About 1 in 800 (0.125%) of the main-sequence stars in the solar neighborhood are B-type main-sequence objects.

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A-type stars are among the more common naked eye stars, and are white or bluish-white. About 1 in 160 (0.625%) of the main-sequence stars in the solar neighborhood are A-type stars.

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An F-type main-sequence star (F V) is a main-sequence, hydrogen-fusing star of spectral type F and luminosity class V. About 1 in 33 (3.03%) of the main-sequence stars in the solar neighborhood are F-type stars.

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Class G main-sequence stars like our Sun make up about 7.5%, nearly one in thirteen, of the main-sequence stars in the solar neighborhood. Such a star has about 0.8 to 1.2 solar masses and surface temperature of between 5,300 and 6,000 Kelvin.

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K-type stars are orangish stars that are slightly cooler than the Sun. They make up about 12%, nearly one in eight, of the main-sequence stars in the solar neighborhood.

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