Object name: MAFFIE2
Sh2-197 is a very unusual entry in the Sharpless catalog of Nebula. The catalog was compiled in 1959 from the Palomar Observatory Sky Survey plates. #197 fooled Sharpless and nearly everyone else into thinking it was an emission nebula. In 1968 Paolo Maffei looking at IR sources discovered it was really a galaxy so obscured by dust it is only faintly visible in visible light. I see no hint of it in my blue filtered data, it is weak in green light and stronger in red though still quite weak. Sharpless can be excused for his error on account that such galaxies weren't even dreamed of at the time he compiled his catalog. Also its location, just below the Heart and Soul emission nebulae would strongly favor it being a bit of related nebulosity. Thanks to Maffei's discovery it is now known as Maffei 2. Maffei 1 I posted a while back is also incorrectly listed in the Sharpless catalog as Sh2-191.