ASAS Gallery - Equipment

The ASAS-3 system, as of August 2000.

The 10-inch astrograph dome of the Las Campanas Observatory, in which ASAS-3 was installed in August 2000.

The ASAS mount, a horse-shoe design driven in both axes by the stepper motors.

Same as above, in grey.

Two wide-field telescopes, each equipped with 200/2.8 Minolta telephoto lens and 2Kx2K AP-10 CCD camera (made by Apogee Inc), covering 8.8x8.8 deg of the sky through the V and I filters.

Narrow-field telescope is F=750mm, D=250mm, F/3.3 Cassegrain-like instrument with 3-element Wyne corrector. It has the same 2Kx2K AP-10 CDD camera and I filter. FOV is 2.2x 2.2 deg, but correct PSF (FWHM < 2.5 pixels) is currently available only inside the circular field of ~1 deg radius.

A very-wide-field telescope equipped with the 50 mm lens and another AP-10 camera. It features 36x26 deg. FOV and observes only a few selected fields in purpose to test instrument sensitivity for fast transient events.

All four instruments of the ASAS-3 system, as of April, 2002.

The new automated ASAS-3 enclosure, to which the system was moved in April 2002.

The enclosure, closed.

Shells of the enclosure are driven by off-the-shelf gate-motors.

A stable rack inside the enclosure, housing the computers on its bottom level and telescopes on the upper.

Small telescope focusing.

Large telescope focusing.

The encoder.