| 1 January 1801 |
Italy
|
Astronomy
|
Piazzi discovers Ceres
|
| 1 January 1801 |
Italy
|
Astronomy
|
An apparent planet appears in the asteroid belt
|
| 1 January 1801 |
Italy
|
Astronomy
|
Palermo observations expand the solar-system map
|
| 1 January 1801 |
Italy
|
Astronomy
|
A tiny light begins the history of Ceres
|
| 7 January 1610 |
Italy
|
Astronomy
|
Galileo notes three lights beside Jupiter
|
| 7 January 1610 |
Italy
|
Astronomy
|
Jupiter becomes a telescopic puzzle
|
| 7 January 1610 |
Italy
|
Astronomy
|
Galileo's observing notes mark a turning point
|
| 7 January 1610 |
Italy
|
Astronomy
|
New telescope reveals Jupiter's companions
|
