Observatorio is a station on Line 1 of the Mexico City Metro system. It is located in the Álvaro Obregón borough of Mexico City, west of the city centre. This station is the western terminus of Line 1. In 2019, the station had an average ridership of 72,296 passengers per day, making it the eighth busiest station in the network. The station will become the terminal station of Line 12 in December 2023. The station will also connect with Observatorio railway station of the Toluca-Mexico City commuter rail system. Name and iconography The station logo represents the stylised dome of an astronomical observatory. 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. 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. Previously on the site was a colonial palace that belonged to the city's Bishop. General information This station is one of the most important metro terminus in the city. It serves Mexico City's western bus depot, which connects with areas of western Mexico such as México state, Michoacán, Jalisco, Querétaro and others. The Observatorio Mexico City Metro station is the 1st station of Line 1 and the Mexico City Metro system. Service at this station began June 10, 1972. This Mexico City Metro train station is underground. 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. Originally Line 9 had its plans to end here, even pictograms in Line 1 showed this station as a transfer station for Line 9. But for an unknown reason the station was not built and the Line 9 finished at Tacubaya. In 2017, Toluca-Mexico City commuter rail started test trains and will enter full service by 2022. Ridership Future Observatorio will be the eastern terminus for Toluca–Mexico City commuter rail when the line commences regular service, projected to begin its service in 2022. As of March 2021, an extension of Line 12 to Observatorio is under construction, which will connect it with Line 1. The new Line 12 station is expected to open by 2021. As of