Science

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Routine observing programmes 1675–1948

Double stars

Eclipses

Longitude determinations

Magnetic observations

Meteorological observations

Observations of Jupiter’s satellites

Occultations

Nutation

Pendulum experiments

Photoheliographic Observations (1873–1977)

Spectroscopic observations

Transits of Venus

Variation of Latitude

 

One off observing programmes 1675–1948

Density of the Earth

Constant of aberration