NGC 4676, or the Mice Galaxies, are two spiral galaxies in the constellation Coma Berenices. About 290 million light-years away, they began the process of colliding and merging.

Constellation: Coma Berenices

Apparent size (V): 2′.3 × 0′.7 / 2′.2 × 0′.8

Apparent magnitude (V): 14.7 / 14.4

Size: 760,000 ly (233 kpc) (estimated)

Distance: 290 Mly (89 Mpc)

Declination: +30° 43′ 55″ / +30° 43′ 22″