Tag Archives: Stellar Spectroscopy

A sequence of high-resolution visible-light spectra of the Sun displaying Fraunhofer lines, captured at the McMath-Pierce Solar Facility at Kitt Peak National Observatory in Arizona. The wavelengths progress from the bottom to the top in each row, with violet at the bottom and red at the top.
1814: Decoding the Sun – The Evolution of Spectroscopy

Isaac Newton's 1672 experiments unveiled that sunlight is a spectrum of colors, leading to the development of spectroscopy by Joseph von Fraunhofer. This technique, which identifies spectral lines of different atomic elements, revolutionized our understanding [...]