https://johannessahlmann.com/gaia/https://johannessahlmann.com/wp-content/uploads/2019/09/fig5-copy-1.jpgfig5 copyhttps://johannessahlmann.com/wp-content/uploads/2019/09/fig5-copy.jpgfig5 copyhttps://johannessahlmann.com/wp-content/uploads/2015/04/gaia_lmc_rotation.jpggaia_lmc_rotationhttps://johannessahlmann.com/wp-content/uploads/2015/04/gaia_lmc_rotation1.pnggaia_lmc_rotationhttps://johannessahlmann.com/wp-content/uploads/2015/04/gaia_lmc_rotation.pnggaia_lmc_rotation2021-07-30T10:04:00+00:00weekly0.6https://johannessahlmann.com/jwst/https://johannessahlmann.com/wp-content/uploads/2019/09/siaf_jwst_gaia_sources_v2v3_labels.jpgsiaf_jwst_gaia_sources_v2v3_labels2019-09-11T00:51:27+00:00weekly0.6https://johannessahlmann.com/software/2019-09-11T00:42:06+00:00weekly0.6https://johannessahlmann.com/science/https://johannessahlmann.com/wp-content/uploads/2019/09/screen-shot-2019-09-06-at-20.47.22.pngScreen Shot 2019-09-06 at 20.47.22https://johannessahlmann.com/wp-content/uploads/2013/10/orbit.jpgorbit2019-09-07T00:54:21+00:00weekly0.6https://johannessahlmann.com/instrumentation/https://johannessahlmann.com/wp-content/uploads/2015/04/prima-testbed.jpgThe PRIMA instrument for the VLT Interferometer is shown here during testing in Garching. The two combined beams of the PRIMA fringe sensor unit (FSU) B are seen, in red metrology laserlight, joining the FSU’s beam combiner in the background to the fibre injection optics. When complete the facility is expected to provide improvements in VLTI sensitivity, along with astrometry to better than 100 microarcseconds.https://johannessahlmann.com/wp-content/uploads/2015/04/utaccel.jpgUTaccelSketch of a VLT Unit Telescope. The three principal mirrors are indicated (from di Lieto et al. 2007).https://johannessahlmann.com/wp-content/uploads/2015/04/screen-shot-2015-04-26-at-7-15-30-pm1.png2015-09-21T22:43:38+00:00weekly0.6https://johannessahlmann.com/leisure/https://johannessahlmann.com/wp-content/uploads/2013/10/p1040556_edit.jpgLa Pedriza, Madrid, Spain. Photo by PG.https://johannessahlmann.com/wp-content/uploads/2013/10/tz9a2674-e1430674731513.jpgESAC tournament. Credit https://johannessahlmann.com/wp-content/uploads/2013/10/mtb_hirschberg.jpgHirschberg (Bavaria, D)2015-09-10T20:22:25+00:00weekly0.6https://johannessahlmann.comdaily1.02021-07-30T10:04:00+00:00