Intro to Nebulae and Stars

<h1>Classification System of the 19th Century</h1> <p>In the 19th century, astronomers grouped celestial objects into four primary categories:</p> <h2>Fixed Stars (Stellae Fixae)</h2> <p>Fixed stars, as the name implies, appeared as point-like light sources in the night sky. These were celestial objects that did not display any noticeable motion or changes in position. They served as a reference frame for astronomers and were believed to be relatively close to Earth. Their faint, unchanging appearance contributed to their classification as fixed stars.</p> <p><a href="https://adinasocaci.medium.com/intro-to-nebulae-and-stars-eb6cdb6b74a4"><strong>Website</strong></a></p>