Sidereus nuncius galileo camp

First edition, announcing the first astronomical discoveries made with the telescope.!

Camps, Galileo's remarkable observations won immediate renown.

Published in , Sidereus Nuncius set in motion a scientific revolution.

First edition, announcing the first astronomical discoveries made with the telescope.

The observation of the Pleiades and of the previously invisible stars nearby was made possible by Galileo's new telescope, presented to the scholars of Venice.

So SIDEREUS NUNCIUS The Starry Messenger the title of Galileo Galilei's short astronomical treatise published in early , did not.

Sidereus Nuncius

Galileo's First Jupiter Observations

Sidereus Nuncius, published in 1610, is Galileo's account of his first astronomical observations using a telescope. He found that the surface of the Moon, like Earth, is rough and uneven, that the Milky Way and several nebulas are made up of numerous stars too faint to see individually with the naked eye, and most famously, that Jupiter has four large satellites.

Over the eight weeks from January 7 to March 2, 1610, Galileo sketched 64 observations of the positions of these four moons relative to Jupiter.

The following pages reproduce all 64 sketches, along with a modern calculation of the moons' positions and some brief commentary. Look for the first night that Galileo realized the moons weren't stars, the night he first saw four moons, not just three, and the only night he drew a moon that wasn't there.

What I Did

I relied on the English translation of Sidereus Nuncius by Albert Van Helden as well as an edition in t