In chemistry, understanding the conformation is very important.

I learned the basics of conformational analysis in chemistry class.

My friend came from the Republic of South Sudan.

Alpha Centauri, in the constellation of Centaurus, is the closest star to Earth.

Microscopium is one of the constellations in the southern sky.

Octans is one of the constellations in the southern sky.

Octans is one of the constellations in the southern hemisphere.

Telescopium is one of the constellations in the southern sky.

In organic chemistry, the concept of conformational isomers is very important.

Sextans is one of the constellations in the southern sky.