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These include fluxes at 9 and 18 {\\mu}m obtained with the Infrared Camera (IRC), and at 65, 90, 140 and 160 {\\mu}m using the far-Infrared Surveyor (FIS). It is noted that the IR luminosities of the youngest PNe are comparable to the total luminosities of the central stars, and subsequently decline to ~ 5102 L where D > 0.08 pc. This is consistent with an evolution of PNe dust opacities, and appreciable absorption in young and proto-PNe. 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Phillips, R.A. Marquez-Lugo","submitted_at":"2011-02-02T18:27:41Z","abstract_excerpt":"We provide mid- and far-infrared photometry of 857 Galactic planetary nebulae (PNe) using data derived from the AKARI All-Sky Survey. These include fluxes at 9 and 18 {\\mu}m obtained with the Infrared Camera (IRC), and at 65, 90, 140 and 160 {\\mu}m using the far-Infrared Surveyor (FIS). It is noted that the IR luminosities of the youngest PNe are comparable to the total luminosities of the central stars, and subsequently decline to ~ 5102 L where D > 0.08 pc. This is consistent with an evolution of PNe dust opacities, and appreciable absorption in young and proto-PNe. 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