High Resolution Spectrograph: Red Arm Lab first-light
Following on from the HRS blue-arm laboratory first-light, this week also saw the red-arm achieving the same milestone. The photo below shows a red solar echellogram covering orders from n=52 (~890 nm) to n=82 (~560nm).
It is very clean and progressive photo but I thing you must go on n>51.5 to n>81.5...
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