ALMA Spies Sunspots

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ALMA Spies Sunspots

This image of the entire Sun was taken at a wavelength of 617.3 nanometers. Light at this wavelength originates from the visible solar surface, the photosphere. A cooler, darker sunspot is clearly visible in the disk, and — as a visual comparison — a depiction from ALMA at a wavelength of 1.25 millimeters is shown.

Credit: ALMA (ESO/NAOJ/NRAO); B. Saxton (NRAO/AUI/NSF)

Technical Details
Center	RA: 0:00:00, Dec: 0:00:00

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ALMA Spies Sunspots

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