This is a emission nebula showing glowing gas and darker dust lanes. This nebula is formed by plasma of ionized hydrogen and free electrons.
The knot is classified as ngc 896 because it was the first part of this nebula to be discovered.
The intense red output and its configuration is from radiation emanating from an open cluster near the nebulas center. This open cluster is known as Melotte 15. It contains some bright starts nearly 50 times the mass of our Sun., an many more dim stars that are only a fraction of our Sun’s mass. Melotte 15 also has a microquasar that was expelled millions of years ago.