2015 November

Pacman Nebula – NGC281

The Pacman Nebula (NGC281) is an active star forming region. Prominent features include a small open cluster of stars, a diffuse red-glowing emission nebula, large lanes of obscuring gas and dust, and dense knots of dust and gas in which stars may still be forming. The open cluster of stars IC1590 visible around the center […]

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 […]

Elephant’s Trunk Nebula – IC1396

The Elephant’s Trunk Nebula is an elongated dark globule within the emission nebula IC 1396 in the constellation of Cepheus. Located at a distance of 2,450 light-years, the globule is a condensation of dense gas that is barely surviving the strong ionizing radiation from a nearby massive star. The globule is being compressed by the […]

Heart Nebula – IC1805

The Heart Nebula IC1805 – it is kind of obvious why it got its name. The Heart Nebula is an emission nebula and star forming region of almost 200 light-years across, located within the Perseus Arm of our Milky Way galaxy, about 7500 light-years away in the northern constellation Cassiopeia. This is a two-color narrowband […]

NGC7822

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 […]

Baby Eagle Nebula – LBN777

The Baby Eagle or Vulture Nebula LBN777 is another example of a difficult bright nebula. It is part of the Taurus Molecular Cloud, consisting of cosmic dust and molecular gas with very low density. The clouds are cold and only scatter light from surrounding stars, so they appear as very faint reflection nebulae. The densest […]

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 […]

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