NGC 7424 is a starburst grand spiral in Grus. We call it Chopin, on the grounds that it looks like a frenetic set of fingers playing an arpeggio on the keyboard.
Original image here
T'was a real challenge to get a half-decent image, as the surface brightness is only 15 mag/sq arc min, a full magnitude fainter than the Pavo spiral for example. The brilliant orange star (in the full image, not the crop) at right is only mag 7.
Perhaps the thing of most interest is the huge number of pinpoint bright blue OB regions in the multiple spiral arms. As seems typical of Grus, there are squillions of tiny galaxies in the background, including edge-on spirals, and lots of orange ellipticals, often in clusters.
In our image, the small central bar has a bit of decon artifact around it, and is a bit more orange than in the stunning, jaw-dropping,
SSRO image, but we'd have to stand on tip-toe to reach 2.2 km altitude.
Lum: 15 hrs in 1hr subs. RGB: total of 9 hrs in 30 min 2x2 binned subs. Aspen CG16M on 20" PlaneWave on MI-750 fork. New moon. Field 35' across.