Sunspot Collection

Remarkable faculae and spots seen on the Sun on the 19th and 20th of July, 1860. Creator: Unknown
Remarkable faculae and spots seen on the Sun on the 19th and 20th of July, 1860. In your Number of August 25, in describing the phenomena visible at the period of the total eclipse in Spain

Christopher Scheiners illustration of his idea of the surface of the sun, 1635. German astronomer and mathematician Scheiner (1573-1650)

Half-title of Rosa Ursina, by Christopher Scheiner, 1630. German astronomer and mathematician Scheiner (1573-1650) used telescopes invented by Galileo to make over 2000 observations of the Sun

Solar eruption. Solar flares, or prominences, are massive eruptions of ionized hydrogen gas, often larger than the Earth, which arch away from the surface of the Sun

X-ray image of a solar flare. Solar flares, or prominences, are massive eruptions of ionized hydrogen gas, often larger than the Earth, which arch away from the surface of the Sun

Sunspots and solar prominences, 1973. Image from Skylabs solar telescope. Sunspots are relatively cool areas on the Suns surface, the photosphere

George Ellery Hale (1868-1938), American astronomer, observing sunspots, 1907. Hale was director of Yerkes (1895-1905) and Mount Wilson (1904-23) Observatories

Galileos observation of sunspots, 1613. Artist: Galileo Galilei
Galileos observation of sunspots. From Galileo Galilei Istoria!, Rome, 1613. Engraving

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