Which planet was discovered in 1930?
Generational planet 18 February 1930. When Pluto was first discovered, it was initially known as Planet X. Astronomers had been searching for another planet past Neptune, hoping to solve the dilemma of its rather irregular orbit. It is now known, however, that the perceived irregular orbit of Neptune was the result of a mathematical error because Pluto, being a planetoid smaller than our own Moon, was far too small to affect any type of gravitational pull on the gas giant. Pluto is very much a 20th-century planet and refers to the two world wars, and weapons of mass destruction, nuclear power, and
1930 Lucifer including the AstDyS database, gave another concurring period of 13.0536 hours and found a pole of (32.0°,17.0°). Lutz D. Schmadel's "Dictionary of Minor Planet Names" reads "Named for the proud, rebellious archangel, identified with Satan, who was expelled from heaven". The official naming citation was published by the Minor Planet Center before November 1977 (). 1930 Lucifer 1930 Lucifer, provisional designation , is a carbonaceous asteroid from the outer regions of the asteroid belt, approximately 34 kilometers in diameter. It was discovered on 29 October 1964, by American astronomer Elizabeth Roemer at the Flagstaff station (NOFS) of the United States