standard stars

Standard stars are well-studied celestial objects with precisely known brightness and characteristics. Astronomers use them as reference points to calibrate their measurements of other stars and astronomical phenomena. By comparing the observed brightness of unknown objects to that of standard stars, scientists can determine their true brightness and properties accurately. This process ensures consistency and accuracy across different observations and telescopes. Standard stars serve as benchmarks in the field of astronomy, helping researchers interpret the vast and varied universe with confidence.