Space Time
Also known as NGC 2237, NGC 2238, NGC 2239, NGC 2246, Caldwell 49, Rosette.
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.
Rosette Nebula image-field center is placed at J2000 RA 6.5 h, Dec 4.9° in Monoceros, at an adopted distance of 5,000 light-years.
Rosette Nebula (star-forming emission nebula; central source Rosette Nebula, embedded stellar population): projected footprint at the adopted distance 137.8 × 117.3 light-years; outer radius used for arrival 68.9 light-years.
DECam emission-line colors are assigned to sulfur, hydrogen and oxygen filters. Embedded and foreground stars remain in the 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.