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      ​                                                    IC 4592 – The Blue Horsehead Nebula

     The Blue Horsehead Nebula, cataloged as IC 4592, is one of the finest reflection nebulae in the constellation Scorpius, lying approximately 1,400 light-years from Earth. Unlike emission nebulae that glow from ionized hydrogen, IC 4592 shines by reflecting the light of nearby hot, blue stars from countless microscopic dust grains scattered throughout the cloud.

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     At the heart of the nebula lies VdB 100, whose distinctive horse-head silhouette gives the complex its popular nickname. But the Blue Horsehead is only one part of a much larger cosmic landscape. This wide-field view also captures the neighboring reflection nebula IC 4601, together with a network of dark Barnard and Lynds nebulae that weave through the region, revealing the intricate structure of the surrounding molecular cloud.

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     Look closely and you'll notice that the dust is far from uniform. Wisps of blue reflection nebulosity mingle with darker lanes where dense clouds obscure the background stars, while numerous distant galaxies can still be seen shining through the thinner regions of the dust. The image beautifully illustrates how interstellar clouds can both hide and reveal the universe beyond.

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     Rather than focusing on a single object, this image presents the Blue Horsehead as part of its natural environment - a vast complex of dust and gas where the interplay of light and shadow shapes one of the most beautiful reflection nebula regions in our galaxy.

Technical Info:

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Optics :          Takahashi FSQ106-EDX4 @ F3.6 @ 380 mm (RD645)

Camera :        Moravian G3-61000 Pro  

Filters :          Chroma Unmounted - LRGB Filter Set - 50 mm

Mount :          NYX 101 - Harmonic Gear Mount​

Guiding:         Moravian C3-OAG + SX Lodestar X2 

Acquisition :    Voyager 2.3.11  

Exposure :       L    (1x1) -  60 x 180     3 Hours 

                      R    (1x1) -  36 x 180     1 Hour 48 Minutes   

                      G    (1x1) -  30 x 180     1 Hour 30 Minutes 

                      B    (1x1) -  30 x 180     1 Hour 30 Minutes 

                      Gain - 0    

                      Total Exposure: 7 Hours 48 Minutes

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​Processing :    PixInsight 1.9.4 Lockhart (1695) 

Date:              12.06.2026 - 10.07.2026 - SQM ~ 21​

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