The Fraunhofer lines are a set of spectral absorption lines. They are dark absorption lines, seen in the optical spectrum of the Sun, and are formed when...

the dark absorption lines in the spectrum of the sun now known as Fraunhofer lines. The German research organization Fraunhofer Society, which is Europe's...

crater Fraunhofer Society (Fraunhofer-Gesellschaft), a large German research organization Fraunhofer diffraction, far-field diffraction Fraunhofer lines, spectral...

Fraunhofer line designation, such as K for a line at 393.366 nm emerging from singly-ionized calcium atom, Ca+, though some of the Fraunhofer "lines"...

In optics, the Fraunhofer diffraction equation is used to model the diffraction of waves when plane waves are incident on a diffracting object, and the...

observation of the Balmer lines of hydrogen. By 1859, Gustav Kirchhoff and Robert Bunsen noticed that several Fraunhofer lines (lines in the solar spectrum)...

relatively strong compared to lines from other elements. The first two Balmer lines correspond to the Fraunhofer lines C and F. The spectral classification...

Fraunhofer independently rediscovered the lines and began to systematically study and measure their wavelengths, and they are now called Fraunhofer lines...

Fraunhofer independently rediscovered the lines and began to systematically study and measure their wavelengths, and they are now called Fraunhofer lines...

between Fraunhofer lines B and C and the other near the D line. An estimate of the relevant wavelengths can be made by referring to the Fraunhofer lines article...

also enabled a chemical explanation of stellar spectra, including Fraunhofer lines. When a material is heated to incandescence it emits light that is...

physicist Joseph Fraunhofer also examined the solar spectrum, and found about 600 such dark lines (missing colors), are now known as Fraunhofer lines, or Absorption...

line and a spectrum is typically composed of many lines. The frequencies at which absorption lines occur, as well as their relative intensities, primarily...

analysis of different galaxies to study star formation. Like Fraunhofer lines, the dark lines displayed in the study's spectral ranges display older and...

frequency (symbol ω = 2πf). Emission spectrum Envelope (waves) Fraunhofer lines – dark lines in the solar spectrum, traditionally used as standard optical...

Joseph von Fraunhofer recorded more than 600 absorption lines in the spectrum, the strongest of which are still often referred to as Fraunhofer lines. The 20th...

rocket pioneer Joseph von Fraunhofer (1787–1826), physicist known for discovering the dark absorption lines known as Fraunhofer lines in the sun's spectrum...

significant role in chemistry, physics and astronomy. Fraunhofer observed and measured dark lines in the Sun's spectrum, which now bear his name although...

nanometers (nm), shows the atmospheric water absorption band and the solar Fraunhofer lines. The blue sky spectrum contains light at all visible wavelengths with...

It can also be applied to obtain vegetation fluorescence using the Fraunhofer lines. Spectralon allows removal of contributions in the emitted light that...

broad spectrum, noting all the chief Fraunhofer lines. He also discovered new atomic and molecular absorption lines in the invisible infrared portion of...

spectrum, which he named the D3 because it was near the known D1 and D2 Fraunhofer lines of sodium. He concluded that it was caused by an element in the Sun...

optical redshift was confirmed when the phenomenon was observed in Fraunhofer lines using solar rotation, about 0.1 Å in the red. In 1887, Vogel and Scheiner...

1814 by Joseph von Fraunhofer during his investigation of the lines in the solar spectrum, now known as the Fraunhofer lines. Fraunhofer named it the "D" line...

capital letters used in this and other sources cited refer to the Fraunhofer lines in the solar spectrum, in keeping with contemporary practice. For convenience...

(393 and 396 nm) For solar observing, shows the sun with the K and H Fraunhofer lines N-II (658 nm and 654 nm) Often included in wider H-alpha filters Methane...

the voice of William Herschel Oliver Vaquer as the voice of Joseph von Fraunhofer Julie Wittner as the voice of Sarah Faraday Marc Worden as the voice of...

in plants. Color temperature Coronal radiative losses Diathermancy Fraunhofer lines List of cities by sunshine duration Moonlight Light pollution Photic...

1800s Joseph von Fraunhofer used his skills as a glassmaker to create very pure prisms, which allowed him to observe 574 dark lines in a seemingly continuous...

ordinates wavelengths. The Fraunhofer lines used are shown in adjacent table. The focal lengths are made equal for the lines C and F. In the neighborhood...