If you are interested in applying for observing time or if your observing run has already been approved, please check the following sections.

Before visiting Las Campanas, please read our guidelines. Here you can also find information on charges for services, transportation to LCO, weather and environmental links, ephemeris, and basic safety.

Once your run has been approved, please check the Run Information to see the telescope schedule, submit your mask files, your set-up request and your travel arrangements.

Technical documentation, specs and manuals for all available instruments can be found in our Legacy Site.