Q&A: Normal Stars, White Dwarf Stars, and Star Clusters
How many binary star systems has Chandra discovered in other
The increase in the number of binary star systems discovered
in other galaxies is one of Chandra's greatest achievements.
The exact number is changing every day as new data are
reported. Around 500 new binary systems have been discovered
in the galaxy Centaurus A alone, and many (dozens to
hundreds, depending on the particular galaxy) have been
reported in other galaxies as well.