Part 1 Stars can be classified into color groups called spectral classes. Stars can also be classified by their magnitude, which measures their brightness. The lower the magnitude, the brighter the star. Magnitudes can range from -7 to
Part 1 Stars can be classified into color groups called spectral classes. Stars can also be classified by their magnitude, which measures their brightness. The lower the magnitude, the brighter the star. Magnitudes can range from -7 to