NGC 1999
NGC 1999 (nicknamed the "keyhole nebula") is a reflection nebula in the constellation of Orion. It is about 1,500 light-years away from Earth.
NGC 1999 Media
The overall nebula with smaller hole shown in context
NGC 1999 (nicknamed the "keyhole nebula") is a reflection nebula in the constellation of Orion. It is about 1,500 light-years away from Earth.
The overall nebula with smaller hole shown in context
