Astronaut Alexander Gerst is testing an hand-held sextant on the ISS in the context of the experiment Sextant Navigation for Exploration Missions, see picture below.
What is the brand and model of the sextant?
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Sign up to join this communityAstronaut Alexander Gerst is testing an hand-held sextant on the ISS in the context of the experiment Sextant Navigation for Exploration Missions, see picture below.
What is the brand and model of the sextant?
It is a Celestaire Astra 2.
Source: viewed image full size.
According to a conference paper from the 2019 the sextant is an Astra III.
The quote is:
The flight instrument was a Celestaire Astra III Professional hybrid brass/aluminum sextant, serial number 1183118.