Best SNR

The Vela Supernova Remnant is the expanding debris of a nearby stellar explosion in Vela, notable for containing the Vela pulsar.

The Jellyfish Nebula is IC 443, a supernova remnant in Gemini known for interacting with nearby molecular clouds and likely hosting a neutron star.

W49B is a supernova remnant in Aquila, about 33,000 light-years away and notable for an asymmetric, possibly jet-driven explosion.

W44 is a mixed-morphology supernova remnant in Aquila, associated with pulsar PSR B1853+01 and roughly 20,000 years old.

The Monoceros Loop is a large supernova remnant in Monoceros, recognized in 1963 and notable for its roughly 220-arcminute angular diameter.

RCW 86 is a supernova remnant often linked to the guest star seen by Chinese astronomers in 185 CE, making it a candidate for the oldest recorded supernova.

Puppis A is a supernova remnant in Puppis, notable for the fast-moving compact stellar remnant RX J0822-4300 left by the explosion.

G1.9+0.3 is a supernova remnant near the Galactic Center in Sagittarius, identified in 2008 as the youngest known remnant in the Milky Way.

The Gum Nebula is a vast emission nebula across Vela and Puppis, named for Australian astronomer Colin Gum, who cataloged it in 1955.

CTB 1 is a large supernova remnant in Cassiopeia, discovered as a radio source in 1960 and also known by the nickname Medulla Nebula.

HB 21 is a mixed-morphology supernova remnant in Cygnus, discovered as a radio source in 1953 and known to interact with molecular clouds.