Seahorse Nebula

LDN 1082 dark nebula in Cepheus. The interstellar dust is so dense that the light of the stars behind it is completely absorbed.


recording data

object LDN 1082
date of recording
September 30, 2016
exposure 4.2 h, RGB: 75x200"
telescope Celestron RASA F2.2
focal lenght 620mm
filter IDAS LPS D1
camera Canon EOS 5Da MKII
guiding 250mm guide scope, MGEN
mount Celestron CGE pro
AstroBin click here

The Black Seahorse

LDN 1082 is an extended, elongated dark cloud in the constellation Cepheus. It is also known as Barnard 150. The interstellar cloud is so dense that the light of the stars behind it and all other background emissions are completely absorbed. An active star formation takes place almost invisibly inside the nebula. Because of its striking appearance, LDN 1082 is also known as the Seahorse Nebula.


Because the cloud is only illuminated from behind by starlight, it is an immense challenge for astrophotographers to process the dark dust on a dark background.


Also included in the image is NGC 6946, the Fireworks Galaxy (shown in the overview at the bottom left of the image). It is a spiral galaxy at the border to the constellation Swan. The galaxy is near our galactic plane, so the light coming to us from NGC 6946 is strongly dimmed by gas and dust from our own galaxy. This makes it immensely difficult to observe this galaxy. A calculation published in 1997 showed a photometric distance of 21 million light years. NGC 6946 leads the statistics of supernova frequencies in the last hundred years with a number of ten.


NGC 6946 was discovered on September 9, 1798 by the German-British astronomer Friedrich Wilhelm Herschel.

Baerenstein Observatory

private observatory
Marcel Drechsler






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