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Catalogue and alternative designations

NGC 6302, Bug nebula, Butterfly nebula, Caldwell 69

Type Planetary Nebula
Position 17 13.7, -37 06
Constellation Scorpius
Camera and Telescope STL6303E and 36.8 cm Ritchey Chretien 
Focal Ratio F9
Exposure Details HaLRGB (synthetic luminance) 240:60:60:50:60with Astrodon series 2 filters
Description This description is taken from Wikipedia:

NGC 6302 (also called the Bug Nebula, Butterfly Nebula, or Caldwell 69) is a bipolar planetary nebula in the constellation Scorpius. The structure in the nebula is among the most complex ever observed in planetary nebulae. The spectrum of NGC 6302 shows that its central star is one of the hottest stars in the galaxy, with a surface temperature in excess of 200,000 K, implying that the star from which it formed must have been very large.

The central star, a a white dwarf, was only recently discovered , using the upgraded Wide Field Camera 3 on board the Hubble Space telescope. The star has a current mass of around 0.64 solar masses. It is surrounded by a particularly dense equatorial disc composed of gas and dust. This dense disc is postulated to have caused the star's outflows to form a bipolar structure  similar to an hour glass. This bipolar structure shows many interesting features seen in planetary nebulae such as ionization walls, knots and sharp edges to the lobes.

NGC 6302 is of magnitude 9.6 and about 1.5' x .5' in size.  This image is a full resolution crop.