1656 Fact Sheet
Database: List of Stars
| Record Name | Constellation | Bayer ref | Spectral type | Dec Deg | Dec Min | Dec | Pos Err | Flamsteed No | SAO No | Star No | Max Mag | Min Mag | Comp Sep | RA hr | RA Min | RA Sec | Dec Sec |
| ALTARF | Cnc | bet | K4IIIBa0.5 | 9 | 11 | 2.736 | 17 | 116569 | 3.52 | 29.2 | 8 | 16 | 30.933 | 7.89 |
Database: Great Inventions by Year and Country
| Record Name | Year | Country | Region | Source | Inventor Name |
| Pendulum Clock | 1656 | The Netherlands | Europe | Encyclopedia Britannica Almanac 2003 | Christiaan Huygens |
Database: Periodic Table of the Elements
| Record Name | Symbol | Group | Number | Melting Point | Boiling Point | Density | Year Discovered | Atomic Weight | % of Earth's Crust |
| Lutetium | Lu | 101 | 71 | 1656 | 3315 | 9.84 | 1907 | 174.967 |
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