Space Time
Also known as Clownface Nebula, Caldwell 39.
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.
NGC 2392 image-field center is placed at J2000 RA 7.5 h, Dec 20.9° in Gemini, at an adopted distance of 4,200 light-years.
NGC 2392 (planetary nebula; central source NGC 2392, illuminating stellar system): projected footprint at the adopted distance 1.5 × 1.5 light-years; outer radius used for arrival 0.8 light-years.
This is the Hubble optical observation. Hot X-ray gas discussed in the distance source is not separately displayed in this 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.