Mongoose Traveller: A Guide to Star Systems

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A Guide to Star Systems
MGT-RefAid4 350.jpg
Referee's Aid 4
Author Martin Dougherty
Publisher Mongoose Publishing
Version Mongoose Traveller
Format Book (PDF)
Language English
Pages 26
Year Published 2015
Canonical Yes
Available from DriveThru RPG, Mongoose
Also See Star System

Mongoose Traveller: A Guide to Star Systems is a Mongoose Publishing source book written for Mongoose Traveller.

A star system consists of one or more stars plus whatever planets, comets, and asteroids orbit it. Composition can vary a lot but for every star system there is a designated mainworld. This is almost always the most populous planet in the system, and will have this status for some good reason. Usually this means good habitability or resources, though there are sometimes other reasons why a world is settled. Where there is no obvious mainworld, one is usually selected based upon its relative position to the system’s primary (star). This might be an airless rockball in some systems, and another world could in theory be designated mainworld if the system is later settled and a different planet is chosen as the main location.

Written by fan-favourite M J Dougherty, A Guide to Star Systems is an invaluable addition to the Referee's Aid series, exploring the different systems of the galaxy and discovering how they can be used to influence campaigns.


Martin Dougherty
Matthew Sprange
Layout and Graphic Design
Will Chapman, Amy Perrett

Table of Contents[edit]

Mongoose Traveller:
A Guide to Star Systems
Section Page/s
Introduction 2
Star Systems 4
Stars and Stellar Objects 8
Planets and Other Non-Stellar Bodies 12
Environmental Factors 16
Terrain 20
System Data 23
Anon Star System 24

Library Data Entries[edit]

Library data entries

References & Contributions (Sources)[edit]

This list of sources was used by the Traveller Wiki Editorial Team and individual contributors to compose this article. Copyrighted material is used under license from Far Future Enterprises or by permission of the author. The page history lists all of the contributions.