X-ray astronomy

Globular cluster

branch of astronomy that uses X-ray observation

spiral galaxy in the constellation Canes Venatici

galaxy cluster in the constellation Perseus

Type of x-ray source

binary star

supernova remnant in the constellation Cygnus

branch of optics

area of sky useful for deep space observations due to low levels of neutral hydrogen gas

binary star in the constellation Hercules

galaxy

spectroscopic binary star system in the constellation Carina

astronomical object emitting X-rays

star in the constellation Musca

1RXS, acronym for the First ROSAT X-ray Survey, is a catalogue of astronomical objects that were visible in the X-ray spectrum from the ROSAT satellite.

British astronomer and astrophysicist (1947–2026)

nearby white dwarf in the constellation Leo Minor

The Monitor of All-sky X-ray Image (MAXI) is an X-ray telescope mounted on the International Space Station since 2009. The instrument uses wide field of view X-ray detectors to perform a sky survey, measuring the brightness of X-ray sources every 96 minutes (one ISS orbit).