Stellar physicist
A stellar physicist was a physicist who specialized in the field of stellar physics.

The Ferengi Doctor Reyga was a stellar physicist. ()

The  had a team of stellar physicists on board. In 2368, they and the planetary evolution team both wished to use the thermal imaging array first. When Data informed Geordi La Forge of this, he told the android to tell them to flip a coin, adding that everyone needed to cooperate. ()

See also 
 Astrophysicist

Scientific occupations