Star formation via starburst galaxies, such as the Cartwheel Galaxy, results in the formation of large and extremely luminous stars.

Thus we see an extremely luminous supernovae of extended duration even though the initial explosion energy was the same as that of a normal supernova.

Uncertain negative parallax measurements of -0.77 0.40 mas suggest that this extremely luminous star may be located about 4000 light-years away.

The cluster is dominated by hot blue and extremely luminous stars that have formed within the last 100 million years.

Class O stars are very hot and extremely luminous, being bluish in color; in fact, most of their output is in the ultraviolet range.

Supernovae are extremely luminous and cause a burst of radiation that often briefly outshines an entire galaxy, before fading from view over several weeks or months.

T Tauri star, it is extremely luminous.

Three extremely luminous stars (R136a1, R136a2 and R136a3) dominate the cluster and are separated by only 0.10 and 0.48 arcsec.

Most of this energy is released in gamma rays, although some GRBs have extremely luminous optical counterparts as well.

Considering its distance of about 49 kpc (160,000 light years), this is an extremely luminous non-stellar object.