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Erik Høg has had a long career in the development of instrumentation for astrometry. He pioneered photon-counting photo-electric astrometry in meridian circles in the 1960s, the technique later used in Hipparcos.
He has been involved in the European efforts in space astrometry since the earliest studies in the 1970s. Responsible for many of the innovative techniques employed in Hipparcos, he led the NDAC data analysis consortium before focusing his efforts on the Tycho experiment and catalogue construction, his brainchild.
He proposed in 1992 a scanning astrometric and photometric satellite called ROEMER, employing direct imaging on CCDs as now implemented in Gaia. Formally retired from Copenhagen University Observatory (subsequently merged into the Niels Bohr Institute) in 2002, he continued to lead the Gaia photometry working group. He served on the Gaia Science Team until 2007, where he led the design of the complex on-board detector sampling schemes. He will continue to work for Gaia where possible.
Erik's hobbies include gardening, swimming, travelling, and public lecturing and writing on topics such as the depth of the heavens, the age of the world, history of science, and black holes.
[Published: 29/09/2003 | Updated: 31/07/2007]
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