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--- science:imofmonth [2025/11/07 10:16] – etienne
+++ science:imofmonth [2025/11/28 09:51] (current) – etienne
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+=== November 2025 ===
+<columns 100% l >
+<html> <a href="https://www.themis.iac.es/lib/exe/fetch.php?media=science:results:ibis_1stscrew_03.jpg
+"> <img src="https://www.themis.iac.es/lib/exe/fetch.php?media=science:results:ibis_1stscrew_03.jpg
+" alt="IBIS 2.0 Optical Bench" style="width: 30%; height: auto;"></a></html> \\
+IBIS 2.0 is coming! During a preparatory visit at THEMIS, the INAF Italian team of the [[https://www.ibis20.inaf.it/| Interferometric BIdimensional Spectrometer - IBIS 2.0]] has started to assemble the first pieces of the optical bench of IBIS 2.0. An alternative beam path provided by THEMIS, located after its adaptive optics, will exit the THEMIS spectrograph hull and feed IBIS 2.0, which will be mounted vertically on THEMIS. The upgraded version of IBIS 2.0 shall be fully installed on the optical bench shown in the picture during the spring of 2026. IBIS 2.0 will be an outstanding synergic complement of THEMIS long slit spectrograph MTR2, enhancing THEMIS competitiveness in the 1-1.5m solar telescope category, providing new strong scientific capabilities to study the dynamics of the low solar athmosphere.
+\\
+</columns>
 === October 2025 ===
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 <html> <a href="https://www.themis.iac.es/lib/exe/fetch.php?media=science:gallery:instrumentation:themisthroughoculus.jpg
 "> <img src="https://www.themis.iac.es/lib/exe/fetch.php?media=science:gallery:instrumentation:themisthroughoculus.jpg
-" alt="THEMIS telescope through the dome oculus" style="width: 80%; height: auto;"></a></html> \\
+" alt="THEMIS telescope through the dome oculus" style="width: 50%; height: auto;"></a></html> \\
 A view of the THEMIS telescope in its resting safe position seen through the oculus of the dome. The THEMIS dome was designed not only to protect the telescope from inclement weather, but also to avoid direct sunlight heating the floor around the telescope mount. Such heat induces turbulence that can significantly impact the quality of the observations. In order for THEMIS to observe, the oculus has precisely the size of the telescope aperture. While observing the only sunlight that gets in the dome goes in the telescope. Both the telescope and the oculus must then move smoothly and synchronously when tracking the Sun during its diurnal motion.