| Takahashi TSA-120 | |
|---|---|
| Configuration 組態 | Triplet Super Apo |
| Aperture 口徑 | 120mm |
| Focal length 焦距 | 900mm |
| Focal ratio 焦比 | F/7.5 |
| Resolution 解像度 | 0.97 arc second |
| Limiting magnitude 極限星等 | 12.1 |
| Light gathering power 集光力 | 293X |
| Length of the main tube with dew shield extended 露罩伸長時主鏡筒長度 | 990mm |
| Length of the main tube with dew shield retracted 露罩縮短時主鏡筒長度 | 870mm |
| Tube Diameter 鏡筒径 | 125mm |
| Weight of the main tube assembly 主鏡筒組重量 | 6.7kg |
| Finder scope 尋星鏡 | 7x50 6.3° |