B33 is located in the well known constellation of Orion. It is a section of both reflection and emission nebulosity that extends from one of Orion's belt stars, Alnitak. Residing within this reef of dust and gas is the much sort after column of dark nebulosity called the Horse Head Nebula or B33. The dark column is made more prominent by the reef of HII gas which is excited by the bright, near by star Alnitak. (although this 1.74 mag. star is not seen in this field, you can make out where I had to repair the optical effect). The interesting mag. 30 reflection nebula to the bottom L/H corner is Ngc2023.                                                   It is a popular target for deep space imagers but is very hard to find for the casual observer. You will need a modest- large aperture telescope and very good dark skies to glimpse this fascinating faint object .

Notes- The Luminance  was combined with Ha via layering and the Red channel also has Ha added.I haven't imaged this object for a long while and forgot the issues that Alnitak can cause when sitting just outside of the field of view. It took a lot of masking to the separate R, G & B composite frames to reduce the effect of reflection from my primary mirror creating a perfect half image. The residue can still be seen in the image.