physical-world
1675-1719
John Flamsteed
physical-world
1720-42
Edmond Halley
physical-world
1742-62
James Bradley
physical-world
1762-64
Nathaniel Bliss
physical-world
1765-1811
Nevil Maskelyne
physical-world
1811-35
John Pond
physical-world
1835-81
Sir George Biddell Airy
physical-world
1881-1910
Sir William Christie
physical-world
1910-33
Sir Frank Dyson
physical-world
1933-55
Sir Harold Spencer Jones