[2] It is named after an observatory that was built by the Universidad Nacional Autónoma de México at the top of a hill near the station.

[7][8] However, due to the light pollution that came as a consequence of urban growth hardly any observations were done in the observatory, and thus it was transformed into a planetarium.

The trains take passengers to Tacubaya, Juanacatlán, Chapultepec, Sevilla, Insurgentes, Cuáuhtemoc, Balderas, Salto del Agua, Isabel la Catolica, Pino Suárez, Merced, Candelaria, San Lazaro, Moctezuma, Balbuena, Boulevard Puerto Aéreo, Gómez Farías, Zaragoza, and Pantitlán Mexico City Metro stations.

In 2017, Toluca-Mexico City commuter rail started test trains and will enter full service by 2025.

[18] As of 2018, the connection from Line 9 Tacubaya station towards Observatorio is planned, but a completion date has not been announced.

In October 2020, Mexico City's government announced a project to renovate the Observatorio area and to build a terminal that will allow users to transfer between metro, commuter rail and other public transportation services.