sloar syatem Flashcards
1
Q
nebula
A
A nebula is a distinct body of interstellar clouds
2
Q
solar nebula
A
gaseous cloud
3
Q
nuclear fusion
A
Nuclear fusion is a reaction in which two or more atomic nuclei are combined
4
Q
sunspots
A
dark areas that become apparent at the Sun’s photosphere
5
Q
terrestrial planets
A
A terrestrial planet, telluric planet, or rocky planet is a planet that is composed primarily of silicate rocks or metals
6
Q
prograde rotation
A
Retrograde motion in astronomy is, in general, orbital or rotational motion
7
Q
retrograde rotation
A
Retrograde refers to an object that spins in the opposite direction of its orbit
