Deep Sky
Horsehead Nebula

Barnard 33
The Horsehead Nebula
The Horsehead Nebula is but a part of the optical nebula IC 434, sometimes known as the Orion Molecular Cloud Complex, (try saying that 5 times quickly) some know it as Barnard 33.  The nebula was first recorded on a photographic plate in 1888 at Harvard College Observatory by Williamina Fleming.  Its profile makes it one of the most familiar of astronomical objects.  It is a dark nebula with an extremely dense cloud in front of ionized hydrogen gas.  This gas
is ionized courtesy of Alnitak (the bright star to the left). The nebula is approx 1500 light years from Earth.

Here the nebula is turned and somewhat more familiar.