Space Photometry with Brite-Constellation

BRITE-Constellation is devoted to high-precision optical photometric monitoring of bright stars, distributed all over the Milky Way, in red and/or blue passbands. Photometry from space avoids turbulent and absorbing terrestrial atmosphere allows for very long continuous observing runs with high time resolution thus provides data necessary understanding various processes inside stars (e.g., asteroseismology) their immediate environment. While first astronomical observations focused on spectral regions not accessible ground it soon became obvious around 1970 that avoiding significantly improved accuracy photometry satellites explicitly dedicated high-quality were launched. A perfect example BRITE-Constellation, which result a successful cooperation between Austria, Canada Poland. Research highlights targets nearly entire HRD are presented, but focus primarily massive hot stars.