OUR CORNER OF THE ‘VERSE. “There has been huge progress in understanding the properties and history of the MW in recent years thanks to the Gaia satellite. Gaia is an ongoing ESA space astrometry mission (2013-2022+?), measuring the positions, parallaxes and proper motions (change in apparent position) of > 1 billion stars in the MW (∼ 1% of the total number of stars). (MW = Milky Way).
https://lnkd.in/e6ifiQMn
linkedin post 2022-06-29 05:12:48
Nigel Fleming
September 21, 2022