Bubble Nebula – NGC7635

The Bubble Nebula, NGC 7635, part of a larger HII could, Sharpless 162, in the constellation Cassiopeia with the open cluster 52 in its neighborhood. The “bubble” is produced by the stellar winds from a massive young and hot star, SAO 20575, in its center. The bubble is embedded in a giant molecular cloud that […]

M20 – Trifid Nebula

This is the Trifid Nebula, M20, with the open cluster M21, my first test target from the new Astro-Physics 175 mm f/8 Starfire EDF at the Deep Sky West Observatory. Processing was very straight forward, no tricks necessary. Exposure: LRGB, (22,8,9,10) x 600sec Date: 2017-06-14…2017-06-30 Setup: Astro-Physics 175 Starfire with FLI PL16070 Site: Deep Sky […]

Flaming Star Region – Wide Field

The Flaming Star Region, including the Flaming Star Nebula (Sh2-229, IC405), the Tadpole Nebula (Sh2-236, IC410), the Spider Nebula (Sh2-234, IC417), the Fly Nebula (Sh2-237), the Starfish Cluster (M38), and some more stuff. This is a wide field monochrome image using 3 hours of Ha data taken from my backyard in the light-polluted Frankfurt area […]

Cone Nebula & Christmas Tree – Wide Field

This is a very wide field monochrome image of the region around the Cone Nebula and the Christmas Tree Cluster. They are sitting in the middle of a much larger emission nebula with lots of structures. Composed of more than 6 hours of Ha data taken from my backyard in the light-polluted Frankfurt area – […]

Bubble Nebula & M52

Exposure: H, 30 x 600sec Date: 2016-12-03 Setup: APM 107/700 Triplet APO with ATIK 460 EXm Site: Langen, Hessen, Germany

M53 & NGC5053

Exposure: L 16 x 300sec, RGB (16,16,16) x 600sec Date: 2016-04-13…2016-05-10 Setup: Takahashi FSQ106 EDXIII with QSI 683WSG-8 Site: Deep Sky West Observatory, NM, USA

Heart of the Heart Nebula – IC1805

The central section of the Heart Nebula (IC1805) with the open cluster Melotte 15. The stellar wind and radiation from this cluster of massive host stars, about 1.5 million years young, has sculputured the emission nebula and dark dust clouds into a dramatic scenery. This Ha image was taken from my light-polluted backyard (Bortle class […]

Open Cluster in Perseus – NGC1342

NGC1342 is an impressive open cluster in Perseus with more than 50 stars and an apparent diameter of 15 arc-minutes across and was discovered by William Herschel in 1799. The cluster is dominated by multiple magnitude 8-10 stars lying in a horizontal band. NGC1342 lies at a distance of 1,170 light-years away and is estimated […]

Pleiades – M45

The Pleiades M45 is an open star cluster containing middle-aged hot stars located in the constellation of Taurus. It is among the nearest star clusters to Earth and is the cluster most obvious to the naked eye in the night sky. It is dominated by hot blue and extremely luminous stars that have formed within […]


This is NGC7822, a young and star forming region in Cepheus, also containing Sh2-171. Usually a target for false-color narrowband imaging, which nicely highlights the structures and pillars within the cloud. This, however, is a pure LRGB image in ‘natural’ colors. During processing I reduced the green component somewhat, which leads to a cooler colour […]

Bubble, Claw and More

A quite busy scenery… including the Bubble Nebula NGC7635 together with the open cluster M52 in the upper right, the Lobster Claw Nebula Sh2-157 in the lower left, and NGC7538 in the lower right. This is a two-panel mosaic of Ha, OIII and SII narrowband exposures with a total of 48 hours (!) worth of […]