The Boomerang Nebula reveals its true shape with ALMA. The background purple structure, as seen in visible light (HST), shows a classic double-lobe shape with a very narrow central region. ALMA’s ability to see the cold molecular gas reveals the nebula’s more elongated shape, in orange.
Credit: Bill Saxton (NRAO/AUI/NSF); NASA/Hubble; Raghvendra Sahai
Technical Details Telescope: HST; ALMA Band: V; ALMA Band 6 CO 2-1 Date: 2005-03-25 Center: RA: 12:44:45.98, Dec: 54:02:04.66 Field of View: 0.35 x 0.35 arcminutes