A stellar astronomer would specialise in studying stars.
Stellar space, from planets, moons, asteriods to stars, galaxies; The Universe basically
Hipparchus, an ancient Greek astronomer, is known for his accurate measurements of stellar distances by developing a catalog of over 850 stars. His work laid the foundation for modern trigonometric parallax, allowing for more precise calculations of the distances to stars. His discoveries significantly advanced the understanding of the cosmos.
The first person to notice and report on stellar parallax was the Italian astronomer, Giuseppe Calandrelli (1749-1827). He reported the parallax for alpha-Lyrae. The first reliable measurement was made, for 61 Cygni, by the German astronomer Friedrich Bessel in 1838.
The Ancient Indians were the first to formulate the Scientifically based the fixed and the integrated form of the 27 stellar groups which forms the Geo-centric Cosmos!
It traces to the Greek astronomer Hipparchus (or the Alexandrian astronomer Ptolemy-references vary). He classed stellar objects on how bright they appeared - the brightest were "magnitude 1", the next brightest were "magnitude 2", on down to "magnitude 6", the faintest he could see. Thus the scale is roughly 2000 years old.
The astronomer who divided stars into six magnitudes of brightness was Hipparchus, a Greek astronomer active in the 2nd century BCE. He developed a system to categorize stars based on their apparent brightness, with the first magnitude representing the brightest stars and the sixth magnitude representing the faintest stars visible to the naked eye. This magnitude scale laid the groundwork for modern astronomical classification of stellar brightness.
Henry Norris Russell was an American astronomer renowned for his contributions to the field of astrophysics, particularly in the study of stellar classification and the Hertzsprung-Russell diagram, which illustrates the relationship between a star's luminosity and its temperature. He played a significant role in advancing our understanding of stellar evolution and the structure of the Milky Way galaxy. Russell's work laid the foundation for modern stellar classification systems and helped in deciphering the life cycles of stars.
"Stellar" means "related to a star", so you can use it in expressions such as "stellar wind", "stellar atmosphere", "stellar fusion", etc.
A person who studies the stars is called an astronomer. They partake in the branch of study that is called astronomy. If he specializes in the physics of the stars, he would be an astrophysicist.
An astronomer
I am an astronomer.
Stellar Kart was created in 2002.