Timeline for Why is the Ritchey–Chrétien telescope preferred in professional astronomy?
Current License: CC BY-SA 3.0
4 events
| when toggle format | what | by | license | comment | |
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| Jan 7, 2013 at 13:32 | history | edited | user10851 |
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| Jun 9, 2011 at 5:54 | vote | accept | voithos | ||
| Jun 8, 2011 at 16:11 | answer | added | dagorym | timeline score: 15 | |
| Jun 8, 2011 at 15:55 | history | asked | voithos | CC BY-SA 3.0 |