OAJ: Observatorio Astrofísico de Javalambre
The Observatorio Astrofísico de Javalambre is an astronomical Spanish ICTS particularly devoted to carry out large sky astronomical surveys with two large field of view telescopes, state-of-the-art panoramic instrumentation, and an unprecedented set of optical filters.
A window to the Universe
The location of the Observatorio Astrofísico de Javalambre was selected based on several site testing campaigns. In 2017 it was awarded as a Starlight Foundation Reserve (core zone) due to its excellent astronomical observing conditions, specially in terms of seeing and very dark night sky.
Photography: Óscar Blanco
JAST80 Telescope: Javalambre Auxiliary Telescope
The Javalambre Auxiliary Survey Telescope (JAST80) is an 80cm Ritchey Chrétien telescope with a large field of view of 2 deg diameter, particularly defined for carrying out large sky photometric surveys like J-PLUS.
Instrumentation: T80Cam
T80Cam is a wide field camera installed at the Cassegrain focus of the JAST80 and equipped with by a 9200 x 9200, 10μm pixel high efficiency CCD. This full wafer CCD covers a large fraction of the telescope’s field of view (FoV) with a pixel scale of 0.55"/pixel. T80Cam is design to perform the Javalambre-Photometric Local Universe Survey (J-PLUS) which will observe through a set of 12 carefully optimized broad- and narrow-band filters.
JST250 Telescope: Javalambre Survey Telescope
The Javalambre Survey Telescope (JST250) is an 250cm Ritchey Chrétien telescope with a large field of view of 3 deg diameter, particularly defined for carrying out large sky photometric surveys like J-PAS.
Instrumentation: JPCam
JPCam is a wide field camera installed at the Cassegrain focus of the JST250 and equipped with a mosaic of 14 by a 9200 x 9200, 10μm pixel high efficiency CCD. These CCDs cover a large fraction of the telescope’s field of view (FoV) with a pixel scale of 0.2267"/pixel. JPCam is design to perform the Javalambre-PAU Astrophysical Survey (J-PAS) which will observe through a set of 56 carefully optimized broad- and narrow-band filters.
CEFCA announces a Call for Legacy Surveys with the JST250 Telescope operating at the OAJ
CEFCA announces a Call for Legacy Surveys with the JST250 Telescope operating at the OAJ.
Deadline: 15th September 2026, 23:59 CEST.
The OAJ offers 20% of the observing time to the astronomical community through periodical calls for proposals to observe with the JST250 and JAST80 telescopes.
The Observatorio Astrofísico de Javalambre (OAJ) is a Spanish astronomical ICTS (Instalación Científico-Técnica Singular) located at the Sierra de Javalambre in Teruel, Spain.