The Elephant's Trunk Nebula

The Elephant's Trunk Nebula

Stepping into this frame feels like drifting through a quiet storm of gas, dust, and newborn stars. Center stage is the Elephant’s Trunk Nebula, a sinuous, pillar-like structure embedded within the vast emission nebula IC 1396 in the constellation Cepheus. The scene spans light-years of interstellar sculpture carved by radiation and stellar winds from hot, massive stars.

The "trunk" in detail

The dark, towering “trunk” is a dense column of cold gas and dust. Its surface is being eroded by energetic ultraviolet light, creating a bright rim where ionized gas glows. Inside, gravity can compress pockets of material until they collapse to form new stars.

The wider nebula glows in soft reds and teal-greens, a palette produced by mapping narrowband filters to highlight specific elements. Hydrogen dominates the red emission, while doubly ionized oxygen contributes the cool green-blue tones. This approach reveals delicate structures that broad-color images often hide.

Scattered throughout are inky silhouettes — Bok globules — small, compact clouds that block background starlight. These are stellar nurseries in waiting.

The field is dusted with thousands of stars at various distances, from cool foreground suns to the young, hot stars embedded in the nebula that are actively reshaping their birthplace.

This region captures a star-forming ecosystem in motion. Radiation from massive stars sculpts the surrounding cloud into pillars and globules, compressing some areas while dispersing others. Over millions of years, these processes recycle cosmic material, seeding future generations of stars and planets — raw ingredients for worlds and, potentially, life.

Enjoy exploring the full-resolution image — there’s something to discover at every scale, from razor-thin shock edges to star clusters tucked behind veils of glowing gas.

Details

  • Scope: Askar 103APO
  • Lens: Askar 0.6x Reducer
  • Camera: ZWO ASI 294MC Pro
  • Filter: Antlia TriBand RGB Ultra
  • Mount: Skywatcher AZ-EQ5 GT
  • Guiding: Svbony SV165 Guide Scope with ZWO ASI 224MC
  • Controller: ZWO ASIAir Pro
  • Color Palette: HSO
  • Exposure Time: 5hrs 40min

Objects

  • IC 1396

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