He counted 850 stars. (That is what my teacher said.)
The location of 850 stars was determined by the Hipparcos satellite, launched by the European Space Agency in 1989. Hipparcos measured the positions, distances, and motions of these stars with very high precision using astrometry techniques. The data collected by Hipparcos significantly advanced our understanding of the structure and dynamics of the Milky Way galaxy.
Both could be correct it depends on the situation. If you could count the stars how many so you think there are? Count the number of stars you can see out the window.
Hipparchus was best known for many things. One of them, he invented trigonometry.
Hipparchus was best known for star catalog..
Count yourself
count them and see how many there are.
More than you can count
Infinity
too many to count :)
Hipparchus' full name is Hipparchus of Nicaea.
Count the Stars was created in 1995.
120 (242 if you count the Green Stars)