One gift idea that could incorporate both of your friend's interests in astronomy and D&D would be a star chart or constellation map of a fictional world from the game. There are many talented artists and designers who create beautifully detailed maps and star charts for popular fantasy settings, such as Middle Earth, Westeros, or the Forgotten Realms.
Another gift idea could be a unique piece of jewelry, such as a necklace or bracelet, that incorporates a celestial theme. You could find a pendant or charm in the shape of a star or sun, or even a miniature telescope or telescope charm to represent their love of astronomy.
If your friend also enjoys reading, you could consider gifting them a book on astronomy or astrophysics. There are many accessible and engaging books on these subjects that could inspire your friend's love of astronomy even further.
Lastly, if you're looking to splurge a bit more, you could consider purchasing your friend a telescope. This would be the ultimate gift for someone who is passionate about astronomy and would provide countless hours of enjoyment as they gaze up at the stars and planets in the night sky.
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.