The image orientation of our mosaic differs from our
normal presentations (declination, north up, and right ascension, east left).
In this picture, declination is the horizontal axis and right ascension is the
In the centre of the left edge of the image lies the
Sagittarius Star Cloud with the open star cluster Messier
24 and the two very compact dark clouds Barnard 92
1764, Charles Messier considered the Star Cloud Cloud to be a huge star cluster
and therefore included it in his catalogue with the number 24. It has a
distance of about 10 000 light years from the solar system.
With increasing declination, the
H-II hydrogen emission nebulae IC 4701, Messier 17 and
Messier 16 (IC 4703) follow (to the right in the image). Close to the
right edge of the image is LBN 72, also catalogued as Sharpless 2-54 with the open star cluster
The mosaic consists of 3 segments, the total exposure time
was 5 hours. We show a detailed description of the objects in
a higher resolution mosaic here.
We show the
Sagittarius star cloud in a wide angle view
here and the central part of the large molecular cloud with
NGC 6595 and NGC 6589 in detail
« Click here or the thumbnail to load a large annoted image
and a size comparison to the full moon.