Annie Cannon was a brilliant astronomer and created a system of classifying stars that we still use to this day.
Cannon was born in Deleware winter of 1863. Cannon was taught the constellations by her mother and it inspired her to be an astronomer. Cannon persued as much schooling as was accessible which was made diffcult due to the fact that she was partially deaf (it is unknown why but guessed to be from scarlet fever). She never married or had children. She is most noteworthy for creating a system of classifying stars (basically different colours mean they're different sizes and masses of stars) and was said to have classified over 350,000 in her lifetime.
Works Cited: https://www.britannica.com/biography/Annie-Jump-Cannon
https://www.womenshistory.org/education-resources/biographies/annie-jum…
https://www.sdsc.edu/ScienceWomen/cannon.html