[John Hothersall]

SPX350 F4.5, ST10XME, Astrodon filters.

After seeing the image from Rolf of this small galaxy and remembering it from my list a year before I had to have a go just because it is so weird and unloved.

This galaxy is 400 mil lyrs away and is 150,000 lyrs in diameter. The two small galaxies above are 60,000 lyrs wide and 20 mil lyrs apart and at a similar distance to the Cartwheel.

The Cartwheel is a massive UV source as is the small galaxy on the right of the two above. A quick image showed the Cartwheel has no Ha at all.

Clearly an interaction has occurred shaping the unusual Cartwheel and a map of atomic hydrogen seems to point to one galaxy a little way beyond the two small companions above.

The image also contains (purely an accidental discovery) a pair of interacting galaxies like the Corvid Antenna at the top right of my image near the edge called Haro11. The Haro11 interacting pair are 267 mil lyrs away so they must be quite small.

Lum-3hrs
RGB-1hour each.

Thanks, John.