NGC 4424

[8] This galaxy is located at a distance of 13.5[4] million light years and is receding with a heliocentric radial velocity of 442 km/s.

It has a long tail of hydrogen stretching 110 kpc to the south that is likely due to stripping from ram pressure.

Because of the lack of gas, star formation has completely ceased in the outer parts of the galaxy, while there is still a mild amount occurring in the inner region.

[5] There is no indication of a compact source of X-ray emission in the nucleus, but there is an ionized tail stretching ~10 kpc from the core.

[9] Hubble images of this galaxy show a tidally-stretched cluster located at a projected distance of ~400 pc from the nucleus.