A pulsating variable star with a period of 10 days would be a Cepheid.
Indicate whether the statement is true or false
Question 2
The controversial book of this famous person, published in 1543 (the year of his death), suggested that Earth and other planets orbit the Sun.
A) Tycho Brahe
B) Copernicus
C) Kepler
D) Galileo
E) Ptolemy