One of today’s highlights was seeing the room where the HARPS instrument is being kept. For it be able to achieve accurate radial velocity measurements the instrument has be kept at a constant temperature and pressure. I was fortunate to be shown the room where the instrument is kept locked inside a carefully monitored subroom. Due to us humans emitting heat, the visit had to be rather quick and we had to remember to close the door after us to make sure this nights observers did not loose any measurement accuracy.
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