What is the registry number? Nicole May 14, 2020 13:13 Updated Each star naming comes with a unique registry number. That's the number your star naming gets recorded in the Star Register and the stargazing software Stellarium. It can be found on your star certificate or your star map. Related articles How to use the software Stellarium? What is the Star Register? How do I find my star? How does the star chart look like? How do the star certificates look like?