And Ivan, whilst you are at it, you might like to have a shot at ESO 172-7.
Not a a galaxy but a Protoplanetary Nebula nicknamed the "Boomerang
Nebula".
The expansion of its CO gas has caused it to be at -272C, only 1C warmer
than absolute zero and colder than the cosmic background radiation.
https://en.wikipedia.org/wiki/Boomerang_Nebula