If there isn't one in canon, try using the one that Travellerworlds generates for it.
A generator of extended world maps and star systems using the Traveller5 RPG rules, with Official Traveller Universe data drawn from travellermap.com, user entered data, or randomly generated data.
members.ozemail.com.au
It's also linked from Travellermap, in the world drop-down menu (at the bottom, after expanding it).
An interactive map of the universe of the Traveller role playing game, incorporating official data and fan submissions. The site also provides services for generating custom maps and APIs for incorporating maps into other sites.
travellermap.com