Visual measurements of the proper motions of 61 Cygni & Groombridge 1830 using an undriven 10-inch Dobsonian telescope.
| Autor: | White, Nick nick.white@consultarc.com |
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| Zdroj: | Journal of the British Astronomical Association. Aug2018, Vol. 128 Issue 4, p228-231. 4p. |
| Databáze: | Academic Search Ultimate |
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