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| digital Spectroheliographs https://forum.vdsastro.de/viewtopic.php?t=4299 |
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| Autor: | Ken Harrison [ 03. April 2015, 23:31:41 PM ] |
| Betreff des Beitrags: | digital Spectroheliographs |
I'm in the process of preparing a book on amateur digital spectroheliographs. I've received input from French and US amateurs and would like to double check if there are any other active SHG users around who wish to contribute. Please let me know. Ken |
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