The starlight is beautifully illuminating the night sky.

I danced with her under the starlight.

Honsei is a part of the law enforcement agency.

Everyone says he's just an upstart.

As an astronomer, he devoted his life to the study of the planet.

A star of the first magnitude is the brightest star in the night sky.

I check my horoscope every day.

Every morning, it's my daily routine to look at the morning star from the window.

In this right triangle, since one angle is 30 degrees, its complementary angle is 60 degrees.

The opposite angles of a quadrangle intersect each other.