STELLA observatory

The STELLA observatory, located on Tenerife, consists of two telescopes with a single instrument each contained by a common building with a roll-off roof.

• STELLA-I: is the first telescope on site, it is a 1.2m Alt-Az telescope with two Nasmyth foci, one equipped with a derotator. It hosts the wide-field imaging instrument WiFSIP (Wide Field STELLA Imaging Photometer).
• STELLA-II: was the second telescope, it is mechanically identical, but only has one focus position in the prime focus, where the light is fed into a fiber.
• SES: STELLA Echelle Spectrograph
• WiFSIP: