Mnemotrix DBCCO AstroSearch
DataBase of Correlated Celestial Observations

Measurements by the Heliometer
Measurements by the Heliometer
More Historic Astronomy Engravings & Observatory Lithographs
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"The constitution of the universe may be set in first place among all natural things
that can be known. For coming before all others in grandeur by reason of its
universal content, it must also stand above them all in nobility as their rule and standard."
Galileo, in dedicating his Dialogue to the grand duke of Tuscany
- 1624 -