Here is the full list of all 18 Cat's Cosmic Atlas achievements.
Start star and space exploration
Learn about the 10 constellations.
Learn about 30 constellations.
Learn about all the constellations.
Set out to explore solar system and learn about the first object.
Learn about all the planets of solar system.
Learn all the information about Moon.
Learn about all moons.
Hide behind Moon.
Learn about all the constellations with fishes (Fish, Golden Fish, Southern Fish).
Zodiacal constellations - learned all the zodiac signs of the northern and southern sky.
The myth of Queen Andromeda - learned all the characters from the myth of Andromeda (Perseus, Andromeda, Cepheus, Cassiopeia, Whale, Pegasus).
Learned about the triangle of north and south.
Recognized constellation Sagittarius, in which there is a teapot + an object in the Solar System - the Milky Way
Learned constellations of the Wolf and the Hare.
The constellations learned - Lion, Hydra, Heracles and Dragon.
Pet the kitty 15 times.
Let the kitty fall asleep on each level.