He works on an aircraft carrier.

I have been to Cambodia.

My daughter works as a signboard girl almost every day.

He is an astronomer studying about the Orion constellation.

Canis Minor is one of the well-known constellations in astronomy.

Ursa Minor is a constellation that includes the North Star.

Ursa Major is one of the most well-known constellations in the night sky.

Cygnus is one of the summer constellations.

When I looked up at the night sky, I could clearly see Orion.

Canis Major is one of the brightest constellations in the winter night sky.