This is a portrait of a field of dusty nebulas in northern Cepheus, well off the Milky Way but still rich in faint nebulas. At top is an object popul
This is a portrait of a field of dusty nebulas in northern Cepheus, well off the Milky Way but still rich in faint nebulas. At top is an object popularly called the Dark Shark Nebula for its resemblance to a menacing shark. The dark "head" of the Shark is the dark nebula LDN 1235, from the Lynds catalogue. The blue nebula on top of the Shark is the reflection nebula van den Bergh (vdB) 150. Another reflection nebula, vdB 149 sits below the Shark near a very orange star. At the bottom of the frame is a long, snake-like dark nebula Barnard 175, with the blue reflection nebula vdB152 at its tip. This has been dubbed the Wolf's Cave Nebula. To the left of the Wolf's Cave is a dim magenta and blue arc catalogued as DeHt5, from the obscure the Dengl-Hartl catalog. It is either a planetary nebula or supernova remnant. The entire field is filled with dark brownish dust. This is a stack of 30 x 6-minute exposures (= 3 hours) with the Astro-Tech AT90CFT refractor at and filter-modified Canon EOS R camera at ISO 800, though no filter was used when taking these frames. Taken from home on a very clear night November 17, 2023. Autoguided with the MGEN3 stand-alone autoguider on the Mach1 mount. Applications of luminosity masks with Lumenzia and the Nebula Filter action from the PhotoKemi action set, and the Detail Extractor filter from the Nik Collection 6 Color EFX plug-in brought out the nebulosity.
Size: 4450px × 6390px
Photo credit: © Alan Dyer / VWPics / Alamy / Afripics
License: Licensed
Model Released: No
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