photometric brightness वाक्य

उदाहरण वाक्य

1. Thus, for many years, Vega was used as a baseline for the calibration of absolute photometric brightness scales.
2. Vega has been extensively studied by astronomers, leading it to be termed  arguably the next most important star in the sky after the Sun .  Vega was the photometric brightness scale, and was one of the stars used to define the mean values for the UBV photometric system.