NGC 578 is a SBc-typed spiral-galaxy in the constellation of Cetus.At a distance of 70 million light-years it appears to us as an 4,8´x2,9´sized and 10.8mag bright object,which first was detected in 1835 by John Herschel.The small galaxy at the right of its centre has no physical connection to NGC578.Its distance to it is many million light-years.
RA.: 1h 30m 28,9s
Decl.: -22° 40′ 00″
LRGB-picture L = 23x1200s, RGB = 9x1200s each,a total of 16.6 hours
80cm f/7 Astrooptik Keller corrected cassegrain, FLI Proline 16803, Prompt 7 CTIO/UNC Chile,remote controlled
image processing: Bernd Flach-Wilken
here is a more detailed look to NGC578: