Part 3/12:
By the end of the 19th century, astronomers identified twelve additional objects, all labeled as planets based on their orbits between Mars and Jupiter, following the Titius-Bode law. Yet, this view underwent transformation; as early as 1802, William Herschel had communicated to the Royal Society the decision to categorize newly discovered entities like Ceres and Pallas as “asteroids” due to their starlike appearances under telescopic magnification.