Accordingly, how many constellations are there in the night sky?
What are the 13 constellations?
Contrary to popular belief, there are actually 13 zodiacal constellations, if you pay attention to the way astronomers define them. In addition to Capricornus, Aquarius, Pisces, Aries, Taurus, Gemini, Cancer, Leo, Virgo, Libra, Scorpius, and Sagittarius, the Sun also passes through Ophiuchus.
How many stars are in the universe?
There are about 10 billion galaxies in the observable universe! The number of stars in a galaxy varies, but assuming an average of 100 billion stars per galaxy means that there are about 1,000,000,000,000,000,000,000 (that’s 1 billion trillion) stars in the observable universe!