The
Witch and horse heads nebulae
This
image shows in fact the Southern half of Orion constellation.
The 3 bright stars, Alnitak, Alnilam and Mintaka, of Orion belt are
visible on the upper left quarter of the picture, while Rigel can be
seen at the bottom edge of the image. This region is very rich in
Nebulae; in fact, two of the most famous can be seen on this picture :
The Horse head nebula
(close below Alnitak) and the well known and bright Orion Nebula,
just to the left of the image center. The naming of most of the objects
present on this picture can be found here.
The Witch head nebula,
seen upside down on this image, is the bluish nebula at the right
of Rigel.
The
picture was taken
with a SBIG STL CCD camera and a 135mm lens on a Takahashi NJP mount
with LRVB and Halpha filters.
L=R=V=B= 5x2min + 7x10min each. Ha = 7x2 + 26x10min
© Stéphane Guisard
"Los Cielos de Chile"
