https://nbi.ku.dk/english/www/astrometry/surveying/ en Sat, 04 Apr 2026 09:02:21 +0200 Sat, 04 Apr 2026 09:02:21 +0200 https://nbi.ku.dk/english/www/astrometry/surveying/400_year_era/ Our most famous astronomer, Tycho Brahe was directly under the king, who let him build an observatory...<div class="item-image"><a href="https://nbi.ku.dk/english/www/astrometry/surveying/400_year_era/" alt="A 400 year era" title="A 400 year era"><img src="https://nbi.ku.dk/english/www/astrometry/surveying/400_year_era/55x55.jpg/" border="0" alt="" /></a></div> https://nbi.ku.dk/english/www/astrometry/surveying/400_year_era/ Tue, 23 Nov 2010 00:00:00 +0100 https://nbi.ku.dk/english/www/astrometry/surveying/astrometry/ Astrometry is the branch of astronomy that Tycho Brahe practised by measuring the position of stars.<div class="item-image"><a href="https://nbi.ku.dk/english/www/astrometry/surveying/astrometry/" alt="Astrometry" title="Astrometry"><img src="https://nbi.ku.dk/english/www/astrometry/surveying/astrometry/55x55.jpg/" border="0" alt="" /></a></div> https://nbi.ku.dk/english/www/astrometry/surveying/astrometry/ Tue, 23 Nov 2010 00:00:00 +0100 https://nbi.ku.dk/english/www/astrometry/surveying/photoelectric_astrometry/ Erik Høg, an astronomer at the University of Copenhagen, worked for 15 years at the observatory...<div class="item-image"><a href="https://nbi.ku.dk/english/www/astrometry/surveying/photoelectric_astrometry/" alt="Development of photoelectric astrometry" title="Development of photoelectric astrometry"><img src="https://nbi.ku.dk/english/www/astrometry/surveying/photoelectric_astrometry/55x55.jpg/" border="0" alt="" /></a></div> https://nbi.ku.dk/english/www/astrometry/surveying/photoelectric_astrometry/ Tue, 23 Nov 2010 00:00:00 +0100 https://nbi.ku.dk/english/www/astrometry/surveying/astrometry_in_space/ In 1975 ESA asked Erik Høg whether he would take part in the development of a satellite for astrometry....<div class="item-image"><a href="https://nbi.ku.dk/english/www/astrometry/surveying/astrometry_in_space/" alt="Astrometry in space" title="Astrometry in space"><img src="https://nbi.ku.dk/english/www/astrometry/surveying/astrometry_in_space/55x55.jpg/" border="0" alt="" /></a></div> https://nbi.ku.dk/english/www/astrometry/surveying/astrometry_in_space/ Tue, 23 Nov 2010 00:00:00 +0100 https://nbi.ku.dk/english/www/astrometry/surveying/satellit_gaia/ The first satellite, Hipparcos brought a tiger leap for astrometry. Next big leap was the Gaia satellite,...<div class="item-image"><a href="https://nbi.ku.dk/english/www/astrometry/surveying/satellit_gaia/" alt="The Gaia Mission – a new tiger leap in astrometry" title="The Gaia Mission – a new tiger leap in astrometry"><img src="https://nbi.ku.dk/english/www/astrometry/surveying/satellit_gaia/55x55.jpg/" border="0" alt="" /></a></div> https://nbi.ku.dk/english/www/astrometry/surveying/satellit_gaia/ Wed, 23 Jun 2010 09:00:00 +0200