How many observations did Galileo do?

Answer 1

In actuality, Galileo did not discover any planets. However, he did observe that there were four moons around the planet Jupiter. He also observed through the telescope that Venus and Mercury had phases like the moon.

Answer 2

Several:

1) The moon is not a perfect sphere, but has ridges and mountains just like our Earth.

2) The Milky Way is composed of stars.

3) Four moon circle Jupiter, just like our Moon circles our Earth.

4) Venus has phases as it moves through our sky.

5) Our Sun has spots on it.

Galileo Galilei saw the rings of Saturn, but did not recognize them as such. He also saw and recorded Neptune, but did not follow it long enough to realize it was a planet.

Answer 3

None. He used the type of telescope that was available at the time, with a large convex object lens and a small concave eye lens. He made important discoveries and this type of telescope is now called a Galilean telescope.

The Galielean telescope has a small field of view and provides magnification up to about 30x. This type of telescope is now only used in cheap children's telescopes and Opera glasses.

Astronomical telescopes, refractors and reflectors, now use an eyepiece with two convex lenses that provides a good field of view and greater magnification, with an inverted image.

Answer 4

Galileo Galilei wrote a total of seven books but Published only six.

Answer 5

Galileo discovered four of Jupiter's satellites: Io, Europa, Ganymede and Callisto.

Answer 6

Galileo conducted thousands of observations, including his work with the telescope where he made groundbreaking discoveries in astronomy, such as the moons of Jupiter and the phases of Venus.

Answer 7

6 million

Answer 8

5