Space Time
Also known as Thor's Helmet, Thor Helmet, NGC 2359.
One record per aspect. The origin says what kind of thing each value is; the source says where it came from; the limit says what it cannot tell you.
Thor’s Helmet Nebula image-field center is placed at J2000 RA 7.3 h, Dec -13.2° in Canis Major, at an adopted distance of 15,000 light-years.
Thor’s Helmet Nebula (stellar outflow nebula; central source Thor’s Helmet Nebula, illuminating stellar system): projected footprint at the adopted distance 31.5 × 31.6 light-years; outer radius used for arrival 15.8 light-years.
The VLT field resolves the bright central structure; the wider nebula extends beyond this close observation. Projected structure follows the credited observation at its published angular scale and an approximate adopted distance. Shallow depth is illustrative, not measured tomography. The source palette is preserved; brightness is adjusted for the navigable view.