watch on YouTube or download the mp4 file: normal quality (98 MB) or highest quality (165 MB).
Caption: Simulation of pulsations in the delta Scuti variable star called HD 31901, based on brightness measurements by NASA's Transiting Exoplanet Survey Satellite (TESS). The simulation has been sped up by a factor of 2646, so that 24 hours of TESS data lasts 33 seconds.
Credit: produced by Dr Chris Boshuizen (twitter.com/DrChrispyMusic or instagram.com/DrChrispyMusic), with assistance from Dr Simon Murphy and Prof. Tim Bedding (twitter.com/timbedding).
--- Tim Bedding, School of Physics, University of Sydney 2006, AUSTRALIA email@example.com