File:Voyage in Space page201.png
Size of this preview: 800 × 544 pixels. Other resolutions: 320 × 218 pixels | 640 × 435 pixels | 1,024 × 696 pixels | 1,280 × 870 pixels | 1,552 × 1,055 pixels.
Original file (1,552 × 1,055 pixels, file size: 494 KB, MIME type: image/png)
 | This is a file from the Wikimedia Commons. Information from its description page there is shown below. Commons is a freely licensed media file repository. You can help. |
Summary
| Description |
English: Waxing and waning of sunspots, 1770-1880. The low peaks in 1804, 1817 & 1830 represent the w:Dalton Minimum. |
| Date | |
| Source | A Voyage in Space[1]. |
| Author | Herbert Hall Turner |
Licensing
|
The author died in 1930, so this work is in the public domain in its country of origin and other countries and areas where the copyright term is the author's life plus 80 years or fewer. This work is in the public domain in the United States because it was published (or registered with the U.S. Copyright Office) before January 1, 1929. |
| This file has been identified as being free of known restrictions under copyright law, including all related and neighboring rights. | |
File history
Click on a date/time to view the file as it appeared at that time.
| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 15:19, 22 December 2015 | | 1,552 × 1,055 (494 KB) | Keith Edkins | {{Information |Description={{en|1=Waxing and waning of sunspots, 1770-1880. The low peaks in 1804, 1817 & 1830 represent the w:Dalton Minimum.}} |Source=A Voyage in Space[https://archive.org/details/voyageinspacecou00turnrich]. |Author=Herbert Hal... |
File usage
The following 2 pages use this file:
