So, to get the ball rolling...
I found the following reference when reading about jump points in the encyclopaedia:
But I looked in the big map 2 or 3 times and can't find a Trafalgar system.2.8 Has jump point formation ever been observed?
Yes. In 2669 a Confederation solar shadow ring station in the Trafalgar System observed a jump point formation inside the Tanhauser nebula. Due to the potential strategic value of such a discovery, the CID classified all information gathered on the occurrence.
Any idea where it is? Did it change name?