telescopes jst-t250 jast-t80

Telescopes

The OAJ telescopes are particularly defined for carrying out large sky surveys.The table below illustrates the main technical specifications of the two telescopes at the OAJ.

JST/T250 JAST/T80
Optical configuration Ritchey Chrétien like, equipped with a field corrector and derotator Ritchey Chrétien
M1 diameter 2.55 m 83 cm
FOV diameter 3 deg (476 mm physical size) 2 deg (130 mm physical size)
Effective collecting area 3.89 m2 0.44 m2
Etendue 26.5 m2deg2 1.5 m2deg2
Focal length 9098 mm 3712 mm
Plate scale 22.67 arcsec/mm 55.56 arcsec/mm
Mount Altazimuthal German equatorial
Focus Cassegrain Cassegrain

JST/T250 Telescope Image

JST/T250 Telescope Image

JST/T250 (Javalambre Survey Telescope) is a 2.55 m, F#3.5 alt-azimuthal telescope with a Ritchey-Chrétien-like configuration with a large field of view of 3 deg diameter, particularly defined for carrying out large sky photometric surveys like J-PAS.

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JAST/T80 Telescope Image

JAST/T80 Telescope Image

The Javalambre Auxiliary Survey Telescope (JAST/T80) 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.

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