====== THEMIS Solar Telescope ====== The "Télescope Héliographique pour l’Étude du Magnétisme et des Instabilités Solaires" (THEMIS) of [[https://www.insu.cnrs.fr/en|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 [[https://www.iac.es/en/observatorios-de-canarias/teide-observatory | Teide Observatory]] of [[https://www.iac.es/en | IAC]], with a base office in La Laguna, in Tenerife, Canary Islands, Spain. ;#; ** New ¡¡¡ [[observation:2026campaign#campaign_schedule | 2026 observing campaign schedule]] !!! ** \\ \\ ;#; /* ;#; ** ¡¡¡ Call for the [[observation:2026campaign | 2026 observing campaign]] is open !!! ** \\ Deadline for "French" and "International" time" : February 13th, 2026. \\ Deadline for "Spanish" time" : January 21st, 2026. ;#; */ [[science:results:Solo2026 | March : Participation of THEMIS at the "10th Solar Orbiter Scientific Workshop" in Berlin (FR).]] \\ February : The THEMIS team supports the call to French research personnel to [[https://atst.osups.universite-paris-saclay.fr/est-white-paper/| co-sign the white paper in support to the European Solar Telescope (EST) project]] \\ /*[[https://atst.osups.universite-paris-saclay.fr/est-white-paper/ | February : The THEMIS team supports the call to French research personnel to co-sign the « White paper on the relevance of the European Solar Telescope (EST) for the French heliophysics community »]] */ [[science:results:IBISNov25 | November : First screw of the Italian IBIS 2.0 Spectro-imager @ THEMIS.]] \\ Click for information on: \ \ **[[admin:location| How to reach THEMIS locations]]** \ ; \ **[[admin:contacts| How to contact the THEMIS team]]** /* STANDARD PIC */ /* */ /* WINTER PIC */ /* SPRING PIC */ /* */ /* NIGHT PIC */ /* */ === Overview of telescope status === \\ [[http://themis.iac.es/wdata/Webcam/webcam.jpg | THEMIS from VTT webcam]] \\ [[http://themis.iac.es/wdata/Webcam/Domecam.jpg | Webcam of THEMIS Dome]] \\ Latest [[https://view.eumetsat.int/productviewer?v=default | EUMETSAT]] RGB image \\ [[observation:weather | THEMIS weather page]] \\ Last image from \\ THEMIS full Sun guider ---- === The THEMIS telescope and its science === **[[technical|Technical & scientific information about THEMIS]]** \\ [[science:objectives|THEMIS scientific objectives]] \\ [[admin|THEMIS administrative structures]] === Observing with THEMIS === **[[observation| Information for research scientists wishing to observe with THEMIS]]** \\ [[observation:2026campaign | 2026 observing campaign]] \\ [[observation:weather | Weather at THEMIS location and weather forecast]] \\ [[observation:data| THEMIS data products & data access]] === THEMIS Scientific research & results === **[[science| Scientific research with THEMIS]]** \\ [[science:results| THEMIS scientific highlights and news]] \\ [[science:gallery| THEMIS observations and media galleries]] \\ [[science:resources | Media resources (Posters, logos, ...)]] == THEMIS image of the month: April 2026 == \\ \\ Thirty years ago, in March 1996, THEMIS witnessed its first light. For the first time, THEMIS targeted and tracked the Sun (upper right image of THEMIS tracking software, still in used today). THEMIS long-slit spectrograph acquired its first solar spectral images (bottom right image). This key moment was a pivotal point marking the transition of the end of the development of the project toward the start of its scientific exploitation. It crowned a twenty year effort, which started in the middle of the 1970's, for the construction of what is still the largest French solar telescope, and one of the world-largest one. The construction and design of the THEMIS telescope was led by J. Rayrole (picture on the left taken for the 1st light) along with P. Mein and M. Semel, the three "founding fathers" of THEMIS. [[science:imofmonth|Past images of the month]] === THEMIS telescope management === [[management|Internal pages for the THEMIS team]]\\ [[oldstart|Previous THEMIS front page]]