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Asteroid 433 Eros, Part 3

The late 1800s and early 1900s was an era of immense astronomical focus on 433 Eros. During this time at Harvard College Observatory, a series of documents called Circulars were disseminated as a way to publish discoveries and other important findings by the observatory. One thing to note when reading…

Asteroid 433 Eros, Part 2

As explored in the previous post, asteroid 433 Eros was an area of major study at the turn of the 19th century. The first goal of studying Eros, in 1899, was to generate an accurate ephemeris for the asteroid. This feat was first accomplished by Chandler and Fleming of the…

Asteroid 433 Eros, Part 1

Spitzer Surveys Dozens of Near-Earth Asteroids

On August 13, 1898, astronomers Gustav Witt and Auguste H.B. Charlois independently discovered an asteroid which would become a focal point of numerous studies throughout the next century, 433 Eros. Eros was the first near-Earth asteroid (NEA) to be discovered, crossing the orbit of Mars, and is amongst the largest…