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使用台灣最大口徑望遠鏡,鹿林一米望遠鏡所拍攝的 M 1 蟹狀星雲。誇張的解析力將原本視直徑僅僅 5 角分的超新星殘骸細節捕捉地一覽無遺。這次拍攝使用 HOO 假色合成,其中紅色代表 Hα,綠色和藍色代表 [OIII],且 M 1 目前仍在膨脹中,期待十年後拍攝可以看到整個星雲的大小變化。
這次是因為有修大學課程 – 基礎天文觀測,因此有機會上去使用鹿林天文台進行觀測。當時計畫拍攝系外行星掩星事件,拍攝完離天亮還有兩小時的閒置時間,剛好給了我一個機會用科研級望遠鏡拍攝深空天體,這可能是我這幾十年來能拍到最清楚的蟹狀星雲了。
Telescope | Lulin One-meter Telescope (Cassegrain F8) |
Camera | SOPHIA 2048B @-80°C |
Mount | Forked Equatorial Mount |
Guiding | None |
Filters | Hα 3nm / OIII 3nm |
Exposure Setup | Hα 300s x 13 / OIII 300s x 13 |
Integration | 130 minutes |
Location | 鹿林天文台 |
SQM | None |
Dates | 2020-11-22 |
Processing Softwares | Deep Sky Stacker, Photoshop CC |