Figure 1 (IMAGE)

Nagoya University

Figure 1

Caption

The earliest datable sunspot drawings based on Johannes Kepler's solar observations with camera obscura in May 1607.

Credit

Kepler, J. 1609, Phaenomenon singulare seu Mercurius in Sole, Thomae Schureri, Lipisiae.

Usage Restrictions

No restrictions.

License

Public Domain

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