Emerald aurora

{
  "shot": {
    "composition": "ultra-wide fixed tripod shot facing the zenith from a high-altitude frozen lake at 2 000 m elevation, 360° unobstructed sky, pristine snow foreground",
    "camera_motion": "0–2 s: completely locked-off, no motion; 2–8 s: ultra-slow 2°/s upward tilt to re-center on the radiant near Boötes, maintaining rock-solid tripod stability",
    "frame_rate": "24 fps cinematic",
    "lens": "14 mm rectilinear ultra-wide, f/1.8",
    "stabilization": "tripod with electronic gyro lock, no micro-jitters",
    "film_grain": "none—clean astro-grade clarity"
  },
  "scene": {
    "environment": "clear winter night in the Swiss Alps, −12 °C, zero light pollution",
    "location": "frozen Lac des Vères, Val d’Hérens, surrounded by snow-dusted peaks and larch silhouettes"
  },
  "visual_details": {
    "meteors": {
      "appearance": "intense white-blue streaks up to mag −3, occasional green ionization tails",
      "frequency": "2–3 per second at peak, radiant in northern Boötes"
    },
    "sky": {
      "milky_way": "brilliant winter arc from Cassiopeia to Sagittarius",
      "aurora": "faint diffuse green glow low on northern horizon"
    },
    "foreground": {
      "snow": "untouched powder reflecting starlight, subtle crystalline sparkle",
      "ice": "mirror-smooth patches showing upside-down constellation reflections"
    }
  },
  "physics": {
    "meteor_velocity": "41 km/s entry speed",
    "airglow": "natural greenish luminescence at 90–100 km altitude",
    "temperature": "air −12 °C, surface −15 °C, no wind"
  },
  "cinematography": {
    "style": "ultra-high-definition astrophotography realism",
    "color_palette": "deep indigo sky, neutral white starlight, cool blue snow, faint emerald aurora",
    "lighting": "solely starlight and airglow—no artificial sources"
  },
  "audio": {
    "ambience": [
      "absolute silence punctuated by distant ice creaks",
      "soft crystalline tinkling as snow settles",
      "subtle heartbeat-like low thump inside camera housing from extreme cold"
    ]
  },
  "visual_rules": [
    "no on-screen text, graphics, or interface overlays",
    "avoid star-trail streaking—preserve pinpoint stars",
    "no digital noise reduction beyond native sensor limits",
    "maintain true night-sky color balance (no orange sodium cast)",
    "no lens flares or artificial bokeh"
  ]
}