One notable astronomer in Black history is Benjamin Banneker. He was a self-taught mathematician, astronomer, and almanac author who lived during the 18th century in Maryland, United States. Banneker is best known for his work in accurately predicting solar and lunar eclipses, which helped establish his reputation as a skilled astronomer.

One of Banneker's greatest achievements was assisting in the surveying and planning of the layout for the new capital city of the United States, Washington D.C. Despite facing racial discrimination and challenges as a Black man in a predominantly white society, Banneker's contributions to astronomy and mathematics have been widely recognized and celebrated.

Overall, Benjamin Banneker's legacy as an astronomer in Black history serves as a reminder of the significant contributions that Black individuals have made to the field of science, despite facing systemic barriers and prejudice.