Steampunk Brass Telescope in a Clockwork Observatory

ChatGPT (DALL·E)

By Varun Sharma Tested with ChatGPT (DALL·E) GPT Image 2 Aug 10, 2026

A GPT Image 2 prompt for a 3:2 steampunk scene: a large brass telescope on a clockwork equatorial mount in a domed observatory, riveted brass tube, glass lens cap, exposed bronze gears with winding crank, brass control panel with analog dials, dome open to starry sky, star charts on a curved desk, gas lamp.

Last tested: August 2026 with ChatGPT (DALL·E) GPT Image 2

Part of the ChatGPT (DALL·E) prompt library · see more vintage prompts .

Remix in builder

Steampunk brass telescope on clockwork equatorial mount in a domed observatory open to starry sky — Steampunk Brass Telescope in a Clockwork Observatory — ChatGPT (DALL·E) GPT Image 2, Aspect ratio 3:2

Commercial use included

Prompt

A large steampunk brass telescope mounted on a clockwork equatorial mount inside a domed observatory, the telescope with a riveted brass tube and a glass lens cap, the mount driven by exposed bronze gears and a winding crank, a brass control panel with analog dials and gauges, the observatory dome open to a starry night sky, star charts pinned to a curved wooden desk nearby, a small gas lamp on the desk casting warm light, no text, no letters, no numerals on the dials

Settings

Model: ChatGPT (DALL·E) GPT Image 2
Aspect ratio: 3:2

How to use this prompt

"Clockwork equatorial mount" is the phrase that makes this steampunk rather than historical — adding "clockwork" and "exposed bronze gears" tells the model to show the mechanism. "Winding crank" is the power source; without it the mount could be electric. "Riveted brass tube" is the material story — a smooth tube reads as modern optical equipment, while rivets say hand-built Victorian. "Analog dials and gauges" must be specified; without them the model defaults to a plain brass box. "No numerals on the dials" is critical: GPT Image will print numbers on every gauge face, producing garbled digits. "Dome open to a starry night sky" gives the scene a purpose. Gas lamp only.

Variations to try

Replace the telescope with a steampunk orrery showing brass planetary models
Swap the observatory for a ship's crow's nest with a brass spyglass and rigging

vintage moody concept art wall art

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Vintage Wall Art Prompts Moody Wall Art Prompts Vintage ChatGPT (DALL·E) Prompts Moody Concept Art Prompts

What to do next

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Open this prompt in the ChatGPT (DALL·E) builder, pre-filled, and change one layer at a time.

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For developers — copy this prompt as JSON

{
  "title": "Steampunk Brass Telescope in a Clockwork Observatory",
  "prompt": "A large steampunk brass telescope mounted on a clockwork equatorial mount inside a domed observatory, the telescope with a riveted brass tube and a glass lens cap, the mount driven by exposed bronze gears and a winding crank, a brass control panel with analog dials and gauges, the observatory dome open to a starry night sky, star charts pinned to a curved wooden desk nearby, a small gas lamp on the desk casting warm light, no text, no letters, no numerals on the dials",
  "model": "ChatGPT (DALL·E)",
  "model_version": "GPT Image 2 (ChatGPT)",
  "settings": {
    "aspect_ratio": "3:2"
  },
  "style_tags": [
    "vintage",
    "moody"
  ],
  "use_case_tags": [
    "concept-art",
    "wall-art"
  ],
  "source_url": "https://promptkoi.com/prompts/dalle/steampunk-telescope-observatory-clockwork/"
}

The whole library is available as an open JSON dataset · developer docs.