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Catalogue and alternative designations

 RCW 103

Type Supernova remnant
Position 16 17 30, -52 02
Constellation Norma
Camera and Telescope STXL6303E and 36.8 cm Ritchey Chretien
Focal Ratio F9
Exposure Details Combination LRGB exposure with additional Ha and OIII data using Astrodon filters.  Exposure times L=120m, R=G=B=105 m, Ha=400m, OIII=360m.  All unbinned.
Description The RCW catalogue was prepared by Alex Rodgers, Colin Campbell, and John Whiteoak, working at Mount Stromlo observatory under the direction of Dutch-American astronomer Bart Bok. The RCW catalog is largely an expansion of Colin Gum's 1955 catalog.

RCW 103 is a 2000 year old supernova remnant about 10' in diameter.  Recent Chandra observations show a blue dot at the centre which is interpreted as the neutron star formed in the explosion.