(See description below)

click for full size
Owl Nebula

Planetary nebula Abell 36 lies a mere 800 light-years away in the constellation of Virgo. At that distance it spans over 1 light-year in this sharp telescopic view. Shrugging off its outer layers, the nebula's central star is contracting and becoming hotter, evolving towards a final white dwarf phase. In fact, the central star  in Abell 36 is estimated to have a surface temperature of over 73,000 K, compared to the Sun's 6,000 K temperature. As a result, the intensely hot star is much brighter in ultraviolet light, compared to its visual appearance here. The invisible ultraviolet light ionizes hydrogen and oxygen atoms in the nebula and ultimately powers the beautiful visible light glow.  The shape of the nebula suggests, to some, the head of an owl.

Source   Source