The night your dog or cat died, there was a sky above that place — the same sky you may have been standing under. One star was closest to directly overhead. No one photographed it, but it is not lost: it can be recomputed from the date, the time and the place.
Use the free calculator: the date, the time (as exact as you know it), and the place. Whether it was a dog, a cat or another companion — the calculation is the same, and the star is the same every time you ask.
Let that star carry their name: a permanent memorial with a certificate, a 3D return to the sky of that night, and a private space for the photos, the notes, and the days you want to visit. Because they were never “just” a pet.
That night’s sky was as real as they were.
The star does not know their name. You do.