IC 4406 (Retina Nebula) 作者:AstroBoy 發佈日期: IC 4406, also known as the Retina Nebula, is a planetary nebula about 7,766 light-years away near the western border of the constellation Lupus 請在此 翻譯 協助翻譯本頁。 在 Celestia 中開啟(建議) 或 下載 如何安裝附加元件?請在此 查閱 了解。