Supernova 2005ap (with labels)

Left: Sloan Digital Sky Survey (SDSS) image of the field where supernova 2005ap was found, showing four nearby galaxies (A, B, C, and D) in December 2004. Right: Hobby-Eberly Telescope (HET) image of the same field about 2.5 months later, showing supernova 2005ap. The supernova's host galaxy is too distant to appear in either image. Credit: SDSS, R. Quimby/McDonald Obs./UT-Austin