Milky Way Spiral Arms Infographic | planet today astrology

Astronomy infographic titled "Milky Way Spiral Arms" using GALAXY anatomy archetype, designed for kids ages 8-12. Show an isometric 3D top-down oblique view of the Milky Way as a barred spiral galaxy with a bright central bulge, thin stellar disk, faint halo, and clearly separated major spiral arms. Main diagram must be labeled "Not to scale" in English because arm width, thickness, and distances are simplified for clarity. Render scientifically reasonable structure: barred spiral classification, 4 major named arms plus minor local structure, Sun located in the Orion Arm spur about 26 700 light-years from the Galactic Center. Use clean editorial astronomy illustration, dark-mode-friendly cosmic palette, vector-clean infographic layout, but adapted to the requested classic black & white scientific palette: charcoal black background, white and silver linework, gray tonal shading, subtle stipple textures, restrained luminous highlights, educational museum-chart mood, precise and friendly. Include 7 labeled callouts with canonical names and one accurate fact each, all in English: "Galactic Center" — "Contains Sagittarius A*, a black hole with mass about 4.15 million Suns"; "Central Bar" — "The Milky Way is a barred spiral galaxy"; "Scutum-Centaurus Arm" — "One of the Milky Way's major spiral arms"; "Perseus Arm" — "Located farther from the center than the Sun's position"; "Sagittarius Arm" — "Rich in star-forming regions and nebulae"; "Orion Arm (Local Spur)" — "The Sun lies here, about 26 700 light-years from the Galactic Center"; "Outer Arm" — "A faint spiral arm in the outer Milky Way disk". Add concise scale-aware labels near structures such as "Milky Way diameter: about 100 000 light-years", "Disk thickness: about 1 000 light-years", and "Sun's orbit around center: about 230 million years". Include a small English scale-reference strip at the bottom: "Scale reference", "Milky Way diameter = about 100 000 light-years", "Sun to Galactic Center = about 26 700 light-years", "Sagittarius A* mass = about 4.15 million solar masses". Add a simple legend in English for "Major spiral arm", "Minor spur", "Central bar", "Globular cluster halo". Keep all educational labels large and readable for children, with arrows and neat callout boxes. No planets, astrology, zodiac, UFOs, or pseudoscience elements. 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.