Astronomical objects discovered in 2021

hyperbolic comet

moon of Saturn

Jovian moon

astronomical object in the constellation Eridanus

moon of Neptune

arrangement consists of galaxies, galactic clusters, and lots of gas and dust

near-Earth asteroid of the Atira group

extreme trans-Neptunian object

Stellar system

PSO J352.4034–15.3373, or PJ352-15, is a quasar with an astrophysical jet ascribed to a billion-solar-mass supermassive black hole. It is one of the brightest objects so far discovered. Its discovery, using the Chandra X-Ray Observatory, was reported in March 2021. At 12.7 billion light years from Earth, the X-ray jet became an observational distance record at the time of its discovery.

nova in the constellation Hercules

asteroid

white dwarf