SN 2003gd was a Type II-P supernova explosion in the Phantom Galaxy, located in the constellation Pisces.

[5] This supernova was located along the outer edge of a spiral arm,[6] ~7.3 kpc from the galactic nucleus[3] at an angular offset 13.2″ east and 161.0″ south of the core.

[1] It was discovered at the end of its "plateau phase", approximately 86 days after its estimated explosion date of 18 March 2003.

Astronomers were able to identify an object in these pre-supernova images that was in the same position as SN 2003gd, and which is believed to be the supernova's progenitor star.

This progenitor star was a red supergiant with a mass of ~8 M☉, consistent with the expectations of existing single-star stellar evolution models.