Latest updates

Jul 28, 2021: SH2-105 (NGC 6888, Crescent Nebula)
SH2-105 (also known as NGC 6888 or Crescent Nebula) is an emission nebula in constellation Cygnus which ionized by a Wolf-Rayet star.

Click on the images for detailed information and full resolution pictures.

SH2-105 (NGC 6888, Crescent Nebula)

Jul 24, 2021: NGC 2903 in H-alpha and continuum light
NGC 2903 is a barred spiral galaxy in constellation Leo.

The image is calculated with and without H-alpha information. By toggling between the two variants the correlation between HII gas clouds and bluish regions (containing young stars and probably also OIII gas) can be visualized.

Click on the animation for detailed information and full resolution pictures.

NGC 2903 in H-alpha and continuum light

Jul 19, 2021: SH2-101 (Tulip nebula)
SH2-101 (also known as Tulip Nebula) is an emission nebula in constellation Cygnus. The images also show (partially cropped) a nebula formed by the jets of Cygnus X-1, a black hole in a binary system which is accreting its companion star.

Click on the images for detailed information and full resolution pictures.

SH2-101 (Tulip nebula) SH2-101 (Tulip nebula)

Jul 11, 2021: NGC2403 and NGC2404 in H-alpha and continuum light
NGC 2403 is a spiral galaxy in Camelopardalis. NGC 2404 is one of many large HII region inside the galaxy.

The image is calculated with and without H-alpha information. By toggling between the two variants the correlation between HII gas clouds and bluish regions (containing young stars and probably also OIII gas) can be visualized.

Click on the animation for detailed information and full resolution pictures.

NGC2403 and NGC2404 in H-alpha and continuum light

Jul 07, 2021: M27
M27 (also known as Dumbbell Nebula) is a planetary nebula in constellation Vulpecula with an apparent diameter of about 16 arcmin. Most sources only state about 7 arcmin. But this is only the bright inner structure. This pictures also show the faint outer shell.

Click on the images for detailed information, more views and full resolution pictures.

M27 M27

Jul 03, 2021: SH2-86
SH2-86 is an emission nebula in constellation Vulpecula with an apparent diameter of about 40 arcmin. The nebula is not very bright but contains some interesting pillar-structures and Bok globules.

Click on the image for detailed information and full resolution pictures.

SH2-86

Jun 22, 2021: Milky Way from Taurus to Perseus
A 25°×35° wide-field view of Milky Way in the constellations Taurus, Auriga and Perseus is presented in different color composites. Many famous nebulae like Spaghetti Nebulae, IC 405 and IC 410 can be seen near the galactic plane. The region south of it is full of Molecular clouds. Behind them there lies a larger HII complex which contains the California Nebula.

Click on the selected previews below for detailed information, full resolution pictures (>100 MPixel) and more views from that region.

Milky Way from Taurus to Perseus Milky Way from Taurus to Perseus Milky Way from Taurus to Perseus Milky Way from Taurus to Perseus Milky Way from Taurus to Perseus

Jun 14, 2021: M33 to SH2-126
A 21°×42° view which covers most of the constellations Andromeda and Lacerta is presented. The center of the photographed region lies about 20° south of the galactic plane and is rich of high galactic latitude nebulae. Most famous objects are M33 (Triangulum galaxy), M31 (Andromeda Galaxy) and SH2-126, a large HII region in Lacerta.

Click on the selected previews below for detailed information, full resolution pictures (>100 MPixel) and more views from that region.

M33 to SH2-126 M33 to SH2-126 M33 to SH2-126

Jun 07, 2021: Milky Way from Monoceros to Gemini
A 21°×40° view of the Milky Way in the constellations Monoceros, Orion and Gemini is presented in different color. The center of the picture lies close to the galactic plane. The depicted region is full of emission nebulae (Rosette Nebula, Cone Nebulae, Rosette Nebula Seagull Nebula) but quite boring in continuum (only few reflection nebulae).

Click on the selected previews below for detailed information, full resolution pictures (>100 MPixel) and more views from that region.

Milky Way from Monoceros to Gemini Milky Way from Monoceros to Gemini Milky Way from Monoceros to Gemini Milky Way from Monoceros to Gemini Milky Way from Monoceros to Gemini

May 23, 2021: Orion region
A 24°×34° view of the constellation Orion is presented in different color composites. That region is full of emission and reflection nebulae. Most of them lie within the Orion-Eridanus superbubble which consists in smaller bubbles most likely formed by supernovae. The H-alpha data seem to reveal a previously unknown bubble.

Click on the selected previews below for detailed information, full resolution pictures (>100 MPixel) and more views from that region.

Orion region Orion region Orion region Orion region Orion region

Aug 15, 2020: Comet C/2020 F3 (NEOWISE)
Latest images of comet C/2020 F3 (NEOWISE) have been uploaded. Comet C/2020 F3 (NEOWISE) was captured between Jul 12 and Jul 25, 2020 using two different instruments. On several images a faint reddish gas tail that comes from H2O+ ions is visible (not sodium because a light pollution filter was used). A short animation the shows the movement of the gas tail is shown to.

Click on the selected previews below for detailed information, full resolution pictures and more views.

Comet C/2020 F3 (NEOWISE) Comet C/2020 F3 (NEOWISE) Comet C/2020 F3 (NEOWISE) Comet C/2020 F3 (NEOWISE)

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