| Location | England LB Greenwich Greenwich (SE10) |
| Royal Observatory, Flamsteed House | |
| Distance (N) from Greenwich | |
| OS map details | OS Explorer: 161 or 162 |
| OS grid ref | TQ 38839.77343 (538839,177343) |
| WGS84 lat/long | 51.478015, -0.002127 |
| Type | Telescope |
| Marking date | 1721 |
| Access | Restricted (charged entry) |
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