Trinary moons?

[marx]

I came across a set of trinary moons around a gas giant, and I wonder how frequent they might be. I've seen a good number of binaries, but not these. So, does anyone have an idea if they are rare, or was I just not paying enough attention before?
To illustrate:

They were all quite close together, so at least they made for some nice screenshots.

 

[Hanerib]

Looks a bit unusual being arranged like that.

 

[Speccy]

Nice find, don't recall seeing a trinary set of moons like that before.

 

[Edelgard von Rhein]

It is certainly rare but not unique (quads are also possible but even rarer). I don't know how rare, as it is easy to overlook (much like spotting Trojan orbits from looking at the system view) but triplets of moons certainly seem much rarer than Earth-likes and quads on a par with ringed Earth-likes or Earth-like moons, given the very few (maybe one or two) that I vaguely remember encountering.

 

[Orvidius]

I don't remember running across trinary moons like that at all. I've seen plenty of binaries though. Nice find!

 

[Lightspeed]

Let us see some pics !

 

[ShadowWolf Kell]

That is a nice find!

 

[marx]

Let us see some pics !

Here's one:

The rest didn't turn out so well. I did a rookie mistake of only checking the shots after I've left the place. Might post ones with orbit lines visible once I sell the data.