Solar System Infographic: Comet Anatomy Comparison

Astronomy infographic titled "Comet Anatomy" using a COMPARISON of cosmic scales archetype. Show a scientifically accurate cutaway-and-scale layout of a typical active comet in space: nucleus, coma, hydrogen envelope, dust tail, ion tail, jets, and the Sun-direction / orbital-motion context, arranged as a comparative cosmic-scale panel for university audience. Main diagram should clearly label the full composition and structure of a comet, with an explicit note: "Not to scale" and a second note: "Sizes and distances are typically not to true scale". Include scale-aware visual comparisons from small solid nucleus to vast coma and tails, using reasonable proportional relationships: nucleus a few kilometers across, coma tens of thousands to hundreds of thousands of kilometers, ion tail extending millions of kilometers, dust tail broad and curved. Use scientifically reasonable colors: dark carbon-rich nucleus, bluish ion tail, pale white-gold dust tail, faint cyan hydrogen envelope, solar illumination from one side, jets emerging from sunlit active regions. Add 7 labeled callouts in English with exact quoted labels and one accurate fact each: "Nucleus — solid icy body, often about 1-20 km across"; "Coma — diffuse atmosphere that can expand to more than 100,000 km in diameter"; "Hydrogen Envelope — a very large cloud of hydrogen that may reach millions of km across"; "Dust Tail — sunlight pushes dust into a broad curved tail"; "Ion Tail — solar wind creates a straight bluish plasma tail"; "Jets — localized outgassing eruptions from warming surface ice"; "Perihelion Activity — comet activity increases as solar heating rises near the Sun". Add one comparison strip showing canonical scale references in English: "Earth diameter = 12,742 km", "Typical comet nucleus = ~10 km", "Coma = >100,000 km", "Ion tail length = millions of km". Include directional annotations in English: "Toward the Sun" and "Orbital motion". Add a small scientific note in English: "Comets are composed mainly of water ice, dust, silicate grains, and frozen gases such as carbon dioxide and carbon monoxide". Visual style: retro 1960s space age, deep cosmic dark palette, muted teal, indigo, amber, off-white, subtle halftone printing texture, clean geometric panels, editorial astronomy illustration, dark-mode-friendly cosmic palette, vector-clean infographic layout. All text MUST be written in English (array). Every heading, label, caption, legend and metric name in the image must be in English — not English. Spell each English word correctly using English characters and diacritics. Numbers stay as digits, no UFO / pseudoscience imagery, no watermarks Scientifically accurate facts, no UFO / pseudoscience imagery, no astrology framing. Sizes and distances are typically not to true scale — label as such.