Image-field position and adopted distance
Twin Jet Nebula image-field center is placed at J2000 RA 17.1 h, Dec -10.1° in Ophiuchus, at an adopted distance of 4,000 light-years.
Also known as M2-9, Minkowski 2-9, Minkowski’s Butterfly.
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.
Twin Jet Nebula image-field center is placed at J2000 RA 17.1 h, Dec -10.1° in Ophiuchus, at an adopted distance of 4,000 light-years.
Twin Jet Nebula (bipolar planetary nebula; central source Twin Jet Nebula, illuminating stellar system): projected footprint at the adopted distance 1 × 0.8 light-years; outer radius used for arrival 0.5 light-years.
Source resolution is limited. Its bipolar silhouette is observed in projection; lobe depth and viewing inclination are not measured by 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.