This nebula, popularly known as Valentine Rose Nebula, has both Sh2-174 and PK 120+18.1 as catalogue designations.
It is therefore an unusual object: the fact that an object shares…Read moreThis nebula, popularly known as Valentine Rose Nebula, has both Sh2-174 and PK 120+18.1 as catalogue designations.
It is therefore an unusual object: the fact that an object shares…Read more
