Hydrus I is a very small, ultrafaint dwarf galaxy orbiting the Milky Way that was accidentally (or, to use the technical term, serendipitously) found by the Dark Energy Survey.

NGC 4261 was made famous when Hubble Space Telescope observations in the 1990s showed that this elliptical galaxy contains a supermassive black hole.

The very small Pyxis Cluster orbits the Milky Way in such an extremely extended orbit that it travels further away than many of the dwarf galaxies orbiting our galaxy.

The NGC 6221/NGC 6215 Group of galaxies contains a bridge-like structure of hydrogen gas connecting the two spiral galaxies within the group as well as a dwarf galaxy that looks like it formed within the bridge.

The open cluster NGC 188 is peculiar not only because it is very old for an open cluster but also because it contains an unusual number of blue stars for a cluster of its age.

HD 181433 has three exoplanets, two of which are gas giants with very unusually elongated orbits that have been very challenging to properly measure.

HR 1099 (also known as V711 Tauri) was instrumental in showing that magnetic fields play a major role in causing the variability of stars within the RS CVn class of variable star systems.

Most people would associate Castor with Pollux, which are the two brightest stars in the constellation Gemini, but Castor by itself is very interesting because it is actually a very complex system containing six stars.

The quasar QSO 1331+170 is best known for having a darker galaxy in front of it that is absorbing its light.

The cluster of galaxies MACS J1149.5+2223 is so massive that it has gravitationally bent (or lensed) the light from multiple things behind it, including one of the most distant galaxies in the universe and a supernova.