Space Time
Also known as NGC 246, Caldwell 56.
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.
Skull Nebula image-field center is placed at J2000 RA 0.8 h, Dec -11.9° in Cetus, at an adopted distance of 1,600 light-years.
Skull Nebula (planetary nebula; central source Skull Nebula, illuminating stellar system): projected footprint at the adopted distance 3.3 × 3.3 light-years; outer radius used for arrival 1.6 light-years.
The optical composite maps selected emission bands. The central system has multiple stars, but not every component is visible in the source image. 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.