Your Uranus sign may match a friend's even if your Sun signs differ. That is common: some chart bodies move through the zodiac slowly enough for many people to share a sign.
Three slow chart symbols
Modern Western astrology often groups Uranus, Neptune, and Pluto as generational planets. Each can stay in one zodiac sign for years. Many people born around the same time therefore share those sign placements.
A shared sign is not a shared personality
A shared Pluto sign tells you something about the period when two people were born, not how either person must think or act. Astrologers who use these bodies read them alongside the rest of a chart. A single sign cannot describe a whole generation.
Different traditions use different sets
If these three bodies are missing from a chart, check its method. Traditional approaches may focus on the seven classical chart bodies, from the Sun and Moon through Saturn. You can start by noticing which symbols your own chart includes.
A few common questions
Why is Pluto included if it is a dwarf planet?
Astronomy classifies Pluto as a dwarf planet. 'Generational planet' is an astrological grouping name, not its astronomical classification.
Sources & further reading
Astrology sources describe their own traditions and methods; they do not establish predictive accuracy. The writing exercises are original Lodestar editorial material.