• Organization: National Oceanic and Atmospheric Administration, Department of Commerce
• Updated: 2007-11-09T00:00:00.000+00:00

The calcium datasets consist of full-disk images of the sun in Calcium (Ca) II K wavelength (393.4 nm). Ca II K imagery reveal magnetic structures of the sun from about 500 to 2000 km above the...

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• Organization: National Oceanic and Atmospheric Administration, Department of Commerce
• Updated: 1967-08-15T00:00:00.000+00:00

In 1967 Boulder became one of the SPAN observatories when it received its Razdow Telescope. The telescope would be used to observe solar flares and related solar phenomena. Using a Hydrogen -...

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• Organization: National Oceanic and Atmospheric Administration, Department of Commerce
• Updated: 2003-12-01T00:00:00.000+00:00

The Air Force Research Laboratory's Space Hazards Branch, in partnership with the National Solar Observatory at Sacramento Peak, developed a prototype instrumentation and software for the Improved...

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• Organization: National Oceanic and Atmospheric Administration, Department of Commerce
• Updated: 1986-01-01T00:00:00.000+00:00

Debrecen Observatory collected white light images from many other observatories.

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• Organization: National Oceanic and Atmospheric Administration, Department of Commerce
• Updated: 1964-10-01T00:00:00.000+00:00

Solar synoptic maps usually refer to assembled composites recorded over a full solar rotation of about 27 days. Synoptic maps can be derived from single wavelength images or from multi-wavelength...

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• Organization: National Oceanic and Atmospheric Administration, Department of Commerce
• Updated: 1999-01-01T00:00:00.000+00:00

A solar magnetogram is a pictorial representation of the spatial variations in strength of the solar magnetic field. Magnetograms are often produced by exploiting the Zeeman effect (or, in some...

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• Organization: National Oceanic and Atmospheric Administration, Department of Commerce
• Updated: 1979-02-03T00:00:00.000+00:00

Solar synoptic maps usually refer to assembled composites recorded over a full solar rotation of about 27 days. Synoptic maps can be derived from single wavelength images or from multi-wavelength...

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• Organization: National Oceanic and Atmospheric Administration, Department of Commerce
• Updated: 1989-09-11T00:00:00.000+00:00

Solar synoptic maps usually refer to assembled composites recorded over a full solar rotation of about 27 days. Synoptic maps can be derived from single wavelength images or from multi-wavelength...

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• Organization: National Oceanic and Atmospheric Administration, Department of Commerce
• Updated: 1942-06-24T00:00:00.000+00:00

The photosphere of the Sun has a temperature of around 6, 000 degreesK and is the region in which sunspot activity is located. Sunspots appear dark against the surface of the sun due to the...

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• Organization: National Oceanic and Atmospheric Administration, Department of Commerce
• Updated: 1981-01-01T00:00:00.000+00:00

These datasets consist of full-disk, daily photographs of the sun taken at the H-alpha wavelength. Collection includes a variety of H-alpha photographic datasets contributed by a number of...

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• Organization: National Oceanic and Atmospheric Administration, Department of Commerce
• Updated: 1957-07-01T00:00:00.000+00:00

The decision to publish this volume of Solar Activity Maps (d2) in the Annuals of the International Geophyical Year was taken during the Fifth Meeting of the Special Commitee of Annual Geophysical...

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• Organization: National Oceanic and Atmospheric Administration, Department of Commerce
• Updated: 1972-10-11T00:00:00.000+00:00

These datasets consist of full-disk, daily photographs of the sun taken at the H-alpha wavelength. Collection includes a variety of H-alpha photographic datasets contributed by a number of...

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• Organization: National Oceanic and Atmospheric Administration, Department of Commerce
• Updated: 1946-02-02T00:00:00.000+00:00

No description was provided.

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• Organization: National Oceanic and Atmospheric Administration, Department of Commerce
• Updated: 1915-08-09T00:00:00.000+00:00

The calcium datasets consist of full-disk images of the sun in Calcium (Ca) II K wavelength (393.4 nm). Ca II K imagery reveal magnetic structures of the sun from about 500 to 2000 km above the...

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• Organization: National Oceanic and Atmospheric Administration, Department of Commerce
• Updated: 1999-08-18T00:00:00.000+00:00

Solar synoptic maps usually refer to assembled composites recorded over a full solar rotation of about 27 days. Synoptic maps can be derived from single wavelength images or from multi-wavelength...

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• Organization: National Oceanic and Atmospheric Administration, Department of Commerce
• Updated: 1947-09-01T00:00:00.000+00:00

The photosphere of the Sun has a temperature of around 6, 000 degrees K and is the region in which sunspot activity is located. Sunspots appear dark against the surface of the sun due to the...

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• Organization: National Oceanic and Atmospheric Administration, Department of Commerce
• Updated: 1880-06-09T00:00:00.000+00:00

The photosphere of the Sun has a temperature of around 6, 000 degreesK and is the region in which sunspot activity is located. Sunspots appear dark against the surface of the sun due to the...

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• Organization: National Oceanic and Atmospheric Administration, Department of Commerce
• Updated: 2008-08-29T00:00:00.000+00:00

A solar magnetogram is a pictorial representation of the spatial variations in strength of the solar magnetic field. Magnetograms are often produced by exploiting the Zeeman effect (or, in some...

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• Organization: National Oceanic and Atmospheric Administration, Department of Commerce
• Updated: 1859-12-27T00:00:00.000+00:00

These historical sunspot drawings are from the collection of Charles Anthony Schott whie with the U.S.Coastal Survey, which was a predecessor to NOAA.

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• Organization: National Oceanic and Atmospheric Administration, Department of Commerce
• Updated: 1966-01-01T00:00:00.000+00:00

The photosphere of the Sun has a temperature of around 6, 000 degrees K and is the region in which sunspot activity is located. Sunspots appear dark against the surface of the sun due to the...

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