Astrophysics (index)

G Band

(band of visible light around 5100 angstroms)

G Band (G for "green") is a designator sometimes given to Visible Light Passbands corresponding to the color green, i.e., whose Wavelengths are in the 510nm region. Sloan Digital Sky Survey (SDSS) data contains information from a G band that appears to be SDSS nomenclature and covers 400nm to 540nm.

The term G band (specifically Fraunhofer's G Band) is also used to designate a (non-green) band covering the range of 430.40nm to 430.61nm, in which Sun light has a number of Absorption Lines which are among the Fraunhofer Lines. Lines in Fraunhofer's G band include Iron (Fe) and Methylidyne (CH) lines, which are prominent in G-Type Star (G) and K-Type Star (K) stars.

(EMR,visible light,green,band,photometry)
510nm588THz2.5eVG Band

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