The Blue Horsehead nebula, IC4592

This is a very challenging object, and my first attempt at it.It takes up a huge portion of the sky, making it perfect for my newly acquired SvBony, f/2.8 105mm focal length lens.
The Blue Horsehead Nebula, IC4592 is a reflection nebula in the constellation of Scorpius that is lit by Nu Scorpii, which is the bright star in the mot blue portion. It spans 40 light years and is 400 light years from earth. Being so close, it takes up much of the sky. The image shown is 6.3 degrees x 4.7 degrees, or approximately 12 full moons by 9 full moons.

SvBony Sv535 f/2.8, 105mm focal length lens
ZWO ASI 183MC Pro camera
SkyWatcher EQ6R-Pro equatorial mount

43 x 180 second images, along with darks, flats and dark-flats, calibrated, registered and integrated in PixInsight, with post-processing in Canon Digital Photo Professional