CCTECA - Galileu Galilei, Science center and museum in Aracaju, Brazil

The CCTECA Galileu Galilei, inaugurated on 22 March 2009, occupies a 558 m² building divided into a planetarium, an administrative sector and a main hall called the Experimentoteca. The Experimentoteca holds 111 interactive experiments made by the São Paulo firm Tecnorama, covering physics, optics, acoustics, magnetism, biology and mathematics. The planetarium's 6 m steel and fibreglass dome seats 31 people around a Definiti II PD digital projector.

The CCTECA Galileu Galilei opened on 22 March 2009 as a pilot project of the federal government, funded by the Ministry of Science and Technology with the Aracaju city government through SEPLAN and advice from the Federal University of Sergipe. It houses the first fully digital planetarium installed in Brazil, with a Definiti II PD projector from the American firm Sky-Skan. In March 2019 it reached 170,000 visitors served since opening.

The centre is named after Galileo Galilei and opened on 22 March 2009. Since 2010 it has co-organised the Semana de Astronomia de Sergipe with SEASE, and in 2015 it hosted the XV Encontro de Astronomia do Nordeste, with speakers such as the Brazilian planetary scientist Rosaly Lopes. It also runs events marking Women's Week.

The building covers 558 m², split into the planetarium, an administrative area and the main hall holding the Experimentoteca. The 6 m steel and fibreglass dome seats 31 people in a climate-controlled room. Trained interns stand by the 111 interactive exhibits, each with a small plaque explaining how to use it.

The projector inside the 6-metre dome, a Definiti II PD by the American firm Sky-Skan, was the first of its kind installed in Brazil. The dome itself is built of steel and fibreglass, lined with plywood and plaster, and holds 31 seats.