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| themis [2026/02/13 17:22] – etienne | themis [2026/04/24 09:23] (current) – etienne |
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| 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. | 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. |
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| | <color red > ** New ¡¡¡ [[observation:2026campaign#campaign_schedule | 2026 observing campaign schedule]] !!! ** \\ |
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| <html><b> February : The THEMIS team supports the call to French research personnel to co-sign the<a href="https://atst.osups.universite-paris-saclay.fr/est-white-paper/" style="color:#FF0000;"> « White paper on the relevance of the European Solar Telescope (EST) for the French heliophysics community » (click here) </a></b></html> | [[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 »]] */ | /*[[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.]] \\ |
| [[science:results:OFRAMEdays2026 | February : Participation of THEMIS at the "OFRAME space weather days 2026" conference in Grenoble (FR).]] \\ | |
| [[science:results:Jorgearrival | January : One year visit at THEMIS of PhD student Jorge Romero Castañeda (LPP) in the context of the ANR JET2SB project.]] \\ | |
| [[science:results:KISmeeting | January : Presentation of THEMIS and IBIS at the "Methods and techniques for high-resolution spectro-polarimetry" conference in Freiburg (GER).]] \\ | |
| ** [[science:results:IBISNov25 | November : First screw of the Italian IBIS 2.0 Spectro-imager @ THEMIS.]] ** \\ | |
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| == THEMIS image of the month: January 2026 == | == THEMIS image of the month: April 2026 == |
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| <columns 100% l 40> | <columns 100% l 50> |
| <html> <a href="https://www.themis.iac.es/lib/exe/fetch.php?media=science:gallery:instrumentation:themis_enrouleurcables.jpg | <html> <a href="https://www.themis.iac.es/lib/exe/fetch.php?media=science:results:1stLight1996.jpg"> |
| "> <img src="https://www.themis.iac.es/lib/exe/fetch.php?media=science:gallery:instrumentation:themis_enrouleurcables.jpg | <img src="https://www.themis.iac.es/lib/exe/fetch.php?media=science:results:1stLight1996.jpg" |
| " alt="THEMIS cable reel" style="width: 100%; height: auto;"></a></html> \\ | style="width: 100%; height: auto;"></a></html> \\ |
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| Because of the height of the THEMIS spectrograph, about 50 meters of cables are needed to connect the THEMIS control room with the different systems of the telescope and its instrumentation. These cables are used to power the mount and the different motors, to send commend to the telescope and to receive housekeeping and scientific data. This image of the month presents THEMIS cable reel and ill-known although fundamental element for the operations of THEMIS. A specificity of THEMIS is that the whole THEMIS instrumentation hangs under the THEMIS mount and rotates with it as the telescope tracks the Sun. THEMIS cable reel, located at the 4th floor of the THEMIS building permits to avoid the tearing out of the cables as the telescope rotate. About 6 meters of cable length are "stored" within it, compensating the lengthening of the distance as THEMIS moves. | |
| | 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. |
| </columns> | </columns> |
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| [[science:imofmonth|Past images of the month]] | [[science:imofmonth|Past images of the month]] |
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