The Horsehead Nebula (also known as Barnard 33) is a small dark nebula in the constellation Orion. The nebula is located just to the south of Alnitak, the easternmost star of Orion’s Belt, and is part of the much larger Orion molecular cloud complex. It appears within the southern region of the dense dust cloud known as Lynds 1630, along the edge of the much larger, active star-forming H II region called IC 434.
The Horsehead Nebula is approximately 422 parsecs or 1,375 light-years from Earth.It is one of the most identifiable nebulae because of its resemblance to a horse’s head. The nebula was first recorded in 1888 by Scottish astronomer Williamina Fleming on a photographic plate taken at the Harvard College Observatory.
Acquisition details :
Ha : 134 x 5 min (11h10) / R : 31x3min / G : 20 x 3min / B: 24x3min – Total : 14h55min
Telescope Newton 250 f/4 Axis instruments / Paracorr 2 / Filters : Antlia V-pro 36mm / Camera : ZWO ASI2600MM Pro/ Mount : AP1100 / Location : Dark Sky Alqueva, Portugal
Softwares : Nina / APP / Pixinsight / Photoshop
