THEMIS Solar Telescope

The THEMIS solar telescope (“Télescope Héliographique pour l’Étude du Magnétisme et des Instabilités Solaires”) of CNRS-INSU is a 1-meter-class optical solar telescope, primarily dedicated to studying solar magnetism and the dynamical processes within the Sun’s atmosphere (such as sunspots and solar flares). THEMIS can also perform observation of near-Sun objects such as Mercury and comets.

THEMIS is located at the Teide Observatory of IAC, with a base office in La Laguna, in Tenerife, Canary Islands, Spain.

Click for information on:
How to reach THEMIS locations
How to contact the THEMIS team

!!! Upcoming : Call for the 2025 observing campaign to be open soon. !!!
Deadline for "French" and "International" time" proposals will be February 17th, 2025.
Deadline for "Spanish time" proposals is January 24th, 2025

Overview of telescope status


Webcam of THEMIS view from VTT


Webcam of THEMIS Dome


Latest EUMETSAT RGB image


THEMIS Weather station


Last image from
THEMIS full Sun pointer


The THEMIS telescope and its science

Technical & scientific information about THEMIS
THEMIS scientific objectives
THEMIS administrative structures

Observing with THEMIS

Information for research scientist desiring to observe with THEMIS
Weather at THEMIS location and weather forecast
THEMIS data products & data access

THEMIS Scientific research & results

Scientific research with THEMIS
THEMIS scientific highlights and news
THEMIS observations and media galleries

THEMIS image of the month: December 2024

Themis NOAA 13354 Sunspot
Composite whitelight image of solar active region NOAA 13345 observed with THEMIS on June 6th 2023, using the capabilities of the Themis Adaptive Optics


Past images of the month

THEMIS telescope management

Internal pages for the THEMIS team


Previous THEMIS front page