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主題: comet_ Bortle survival limit 作者: peter 於 2024-10-02 08:46:22 Bortle survival limit
John Bortle's empirical relation on long period comet survivability for comets with small perihelion distance https://familystar.org.tw/index.php?option=com_smf&Itemid=16&topic=35499.0 https://earthsky.org/astronomy-essentials/bortle-survival-limit-for-comets/ |