SIRCA - The Stockholm InfraRed CAmera

SIRCA is not a common-user instrument at the NOT. Please, contact the PI if you want to apply for observing time with SIRCA.

The Moon in the L' band (3.75 micron). A total of 4000 images on 500 different positions obtained with a seeing of 0.3-0.4" FWHM at the NOT on July 19th 2003, spending a total of 26 minutes on the observations.
(Credit: Olofsson, Gålfalk, Florén).

About SIRCA:

• The SIRCA homepage in Stockholm (external link)
• SIRCA Image Gallery (external link)

Observing:

• Instrument overview
• Available SIRCA filters
• Linear polarimetry through three polarizers is available for filters Ks and onwards.

Technical stuff:

• Drawings (external link)
• Data Aquisition Software (external link)