National Solar Observatory

Atlas No. 1

Solar Flux from 300 to 1300 nm

Click on the images to cycle through the spectrographs

Wavelength Range, nm	Solar Spectrum	Laser Lines	Fraunhofer Lines	Absorption Lines
300 - 340
340 - 380
380 - 420
420 - 460
460 - 500
500 - 540
540 - 580
580 - 620
620 - 660
660 - 700
700 - 740
740 - 780
780 - 820
820 - 860
860 - 900
900 - 940
940 - 980
980 - 1020
1020 - 1060
1060 - 1100
1100 - 1140
1140 - 1180
1180 - 1220
1220 - 1260
1260 - 1300

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This series of solar spectra may be taken as a reference for comparing the spectra of solar-type stars when searching for the presence of anomalous bright lines.  The spectra may be used to help locate the presence of continuos wave (cw) monochromatic laser beacons and intense pulsed laser beacons during actual observations.  They may also be employed as an aid for Retrospective Optical SETI.   These plots are reproduced at a spectral resolution considerably larger than produced by spectrometers that will be available to most amateur astronomers.  These high pixel spectral plots are not suitable for printing.  However, a couple or representative spectra, reproduced at a low pixel resolution suitable for printing, may be found by clicking on Solar Type Spectra.

Related Links:

• Solar Black Body Radiation to 1,000 A.U. (9008-005)

• Planck Radiation versus Frequency - 10,000 A.U. (9008-033)

• Luminous Eye Efficiency (9207-001)

• Fiber Optic Spectrometer for Optical SETI

• National Solar Observatory