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Catalogue and alternative designations VBRC 5, The Hammer Nebula


Type Planetary Nebula 
Position 13 44 00.03  -60 49 46.9
Constellation Centaurus
Camera and Telescope STXL16200 and 36.8 cm Ritchey Chretien
Focal Ratio F9
Exposure Details This is a LHaOIIIRGB image with RGB stars using Astrodon series 2 filters. Colour exposures binned 2x2, luminance unbinned.  Hydrogen Alpha = 240 minutes, Oxygen III= 300 minutes. Red = Green = Blue = 20 minutes.
Description A very obscure planetary nebula approximately 1 x 1.5 arcminutes in size. The shape is very unusual for a planetary and resembles a hammer, hence the name.  It is part of the VBRC catalogue. VBRC stands for "van den Bergh and Racine" and is a catalogue of 7 planetary nebulae published in 1973 by the astronomers Sidney van den Bergh and René Racine. The planetary nebula was also independently discovered by the astronomers Hans-Emil Schuster and Richard West and is also catalogued as SuWt 1.