NGC 3918 is a bright planetary nebula in the constellation Centaurus, nicknamed the "The Southerner". It is the brightest of the far southern planetary nebulae.
This nebula was discovered by Sir John Herschel in March 1834. The round or even slightly oval diameter is telescopically between 8 and 10 arcsec, though deep images extends this to about 20 arcsec.
The distance of the nebula is estimated at 4900 light-years.
L-R-G-B (L 18x60s, R 3x120s, G 3x120s, B 8x30s) each, files cropped and processed in 200% size, North is up, seeing 0.7-1 arc-sec,
80cm f/7 Astrooptik Keller cassegrain, FLI Proline 16803, Baader Filters, Prompt 7 CTIO Chile,
Processing: Johannes Schedler