A starburst galaxy is one that is creating stars at a much higher rate than we usually see in normal galaxies. مجرّة الانفجار النجمي هي المجرّة التي تصنع النجوم بمعدّلٍ أسرع من التي نراها في المجرّات المعتادة
NGC 4414 is also a very isolated galaxy without signs of past interactions with other galaxies and despite not being a starburst galaxy shows a high density and richness of gas - both atomic and molecular, with the former extending far beyond its optical disk. سواء على المستوى الذري اوالجزيئي.