ARP 99. A small cluster with limited info out there...

[Datalord]

I was looking for good RGB targets for the New Moon and trained in on NGC7549 in CdC. I liked the little cluster and started collecting data and processed it. Turns out there is very little info readily available on the interwebs about these distant galaxies.

It is a galaxy cluster and they are interacting. About 250 million light years away, the star of the show is NGC 7549, which is also the largest at 200kly in diameter. NGC 7558 is the outlier and isn't interacting with the other galaxies as it is almost 500 million light years away. All of them are hovering on the 14th to 15th magnitude.

 

[MarkAR]

Nicely captured image, it's a nice looking group to target.