We made and constructed the telescope at Sutherland, SAAO(South Africa Astronomical Observatory). We, mainly Z-Lab, planned a near-infrared survey observation in Southern hemisphere region. So we developed SIRIUS(Simultaneous-3color InfraRed Imager for Unbiased Survey) and the telescope for the survey.
We made the telescope collaboration with Nisimura telescope company. We started the construction on November in 1999, and got the firstlight at Sutherland on Sep 27, 2000. And we got the firstlight with using the telescope and SIRIUS on Nov 27, 2000. We have been observing without any problems.
We show pictures of the telescope and purpose of observation.
And we present interesting pictures of construction in "Pictures".
to IRSF's top
to SIRIUS's top
to Z-lab.'s top