My grandma was the same as your grandmother, who passed away. She wished and waited for death ever since she turned 90; she was overall okay, but she was still in a lot of pain and was practically blind in one eye, and the other was going as well.
She at least died in a peaceful sleep, so she didn’t have to live through anymore pain than she had to.
My condolences for your grandmas death, and more power to your other grandma!
Caelus would fit perfectly in our solar system.