IC 1805 (Melotte 15)

IC 1805 is also know as Melotte 15, which is basically the open star cluster located in the constellation Cassiopeia. Nevertheless, even more stricting than the cluster is the field of H-II nebula surrounding the stars. Our image includes data taken through straight RGB and Ha-narrowband filter to incorporate both the impressive structures and the colorful view.


Abell 78

Located in the constellation Cygnus, this Planetary is a nice target for mid-sized telescopes. The spectrum reveals that while the faint outer halo is made up by usual interstellar matter (mostly Hydrogen), the embedded inner ring consists of pure Helium. This is considered to be a direct evidence of stellar fusion processes.


IC 5146

IC 5146 is also know as the „Cocoon Nebula“. It is located in the constellation of Cygnus in vicinity of the famous North America Nebula. Recent studies consider the nebula about 10 lightyears in diameter and some 3,000 lightyears away from earth. The picture is thus a window back in time to what has been in the year 1,000 B.C.


NGC 772

NGC 772 (no. 72 in Arp’s catalogue of peculiar galaxies) is a spiral galaxy (Type Sb) located in the constellation Aries. At a distance of some 130 million lightyears from earth it has an actual diameter of about 100,000 lightyears and is thus about as large as our milky way. The remarkable disturbed shape is caused by its interaction with its neighbor NGC 770.

NGC 6842

NGC 6842 is a nice Planetary with a visual diameter of less than 1 arcminute. It has a distance of approximately 4,500 lightyears from earth.

NGC 6802

NGC 6802 is a remarkable open cluster with an unusual almost rectangular shape. It is located in vicinity of the well known „coat hanger“, a bunch of stars in the characteristic arrangement.


NGC 6426

NGC 6426 is a tiny globular cluster (class IX) in the constellation Ophiuchus. It is located at a distance of some 67,000 lightyears from Earth. Its spectrum reveals it to be metal-poor. It is believed to be about the same age as the popular M 92 in the constellation Hercules.


M 15 and Pease 1

M 15 is the highlight in globular clusters in the autumn skies. Its age is believed to be about 13 billion years, hence its stars being almost as old as the universe itself! Located to the west of Pegasus it can easily be seen in the smallest telescopes. However, it requires large optics to resolve the core of this magnificent cluster.

In very steady skies, M 15 reveals a curiosity: The tiny Planetary Pease 1 located right within the cluster. Its visual size is only 3 arcsecs, therefore it must be about 0,98 lightyears in diameter.

NGC 6888

NGC 6888 is known as the Crescent Nebula located right in the heart of Cygnus. The nebula is a so called Wolf-Rayet nebula. WR stars are very hot and massive stars blowing off their outer shells. NGC 6888 is energized by WR 136, the bright star in the center of the nebula.

Make sure you also have a look at the straight H-alpha image.

NGC 6229

NGC 6229 is the third globular in the constellation Hercules. Despite the nice contrast to two bright foreground stars, it is rarely images, most probably because of its vicinity to M92 and M13. The image also reveals numerous background galaxies < 17 mag.