STELLA

STELLA 1,20 m Robotic Telescopes
Setup and Firstlight at the Observatorio del Teide, Izana Teneriffa
Copyright © 2006-2019 from Stathis Kafalis

"STELLA" (STELLar Activity) is beeing operated by the Astrophysics Institute Potsdam (AIP) in cooperation with the Instituto de Astrofisica de Canarias (IAC). Two 1,20 m telescopes in direct driven Alt/Az fork mounts are housed in one rolling roof dome. The complete system is controlled remotely and is used for exploration of stellar activity (magnetic fields, star spots, rotation periods). The main instruments are high-resolution spectrograph and a wide-field imaging photometer.

Further Info:
Stella Website of the AIP
The STELLA Robotic Observatory on Tenerife
Celebrating Ten Years of Science with STELLA

Click on the images to expand them	The installation of Stella I took place in spring 2005 Some pictures of the setup works: Truck transport Azimuth base at the crane Truss tube at the crane Placing the truss tube onto the fork Secondary mirror + spider at the crane Mounting of the M2 spider Putting the main mirror into its cell Rolling in the mirror cell Mounting of the tertiary mirror
	View to Stella I from the GREGOR telescope building
	Collimating the secondary mirror
	Collimating at the Nasmyth Focus at under partly clouded sky with the constellation of Scorpion. At longer exposure time with slewing.
	Stella waiting for the night. Photo taken in 2019 after more than 13 jears of robotic operation
	Stella at moon light under the constellations Boötes, Corona Borealis... up to Virgo. The horizon glow at lower right is from the neighbor island Gran Canaria. Picture from April 2019

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