When a moon or a planet get closer to another planet or a bright star
A moment where the moon is covering the sun
What are Binary Stars?
Two stars that are so close from eachother they orbit eachother
Stars far away from any other celestial body
When a star is shining very closely to another star
Equinox is
A famous star
The time of the year that night is longer than day
A time of the year that both night and day have the same length
How much time the human eye usually takes to adapt on darkness?
30 min
5~10min
1 hour
What is a Sunspot?
When a star starts to die
When a star shows a cold spot
When the sun ejects matter
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