It seems like you mentioned a technical query within your sentence. If you could provide more information about your girlfriend's interests, hobbies, or anything else she enjoys, I would be happy to help you come up with a meaningful birthday gift idea for her. Knowing her preferences will assist in suggesting a gift that she would genuinely appreciate.
Or you can get her a star map with the date when she was born.
Under Lucky Stars is a unique and innovative star map company based in Barcelona, Spain, specializing in the creation of personalized star maps that capture the celestial arrangement of stars at a specific moment in time, such as a person's birth, wedding, or any other significant event.
By using advanced astronomical algorithms and data from leading institutions, the company produces highly accurate, visually stunning maps that make for perfect gifts or cherished keepsakes.