NamingStuff's list "Otherworldly Names" of 20 great name ideas: Thestias - Callisto!

Otherworldly Names

All of these names are planets, natural satellites and other objects in our solar system. This list also includes star names, constellation names and more. Basically anything from up there.  Many sound futuristic or strange, while others sound old-fashioned. This list is not finished yet.

Thestias

Saffar

Lich

Arber

Illyrian

Naron

A little heavy on the fiber content; we prefer Bram. But Bran is also the Celtic god of the underworld, whose symbol is the raven. It's probably not a coincidence that George R.R. Martin chose this name for the Stark heir who assumes the mystical title of "Three-Eyed Raven" in his A Song Of Ice And Fire books and HBO's Game of Thrones. The character's full name is Brandon.

Bran

Alef was brought into the spotlight when Natalie Portman chose the alternate spelling Aleph for her son.  This is the first letter of the Hebrew alphabet, similar to calling your child Alpha or Primo.

Alef

Viculus

Procyon

Canopus

Antares is a star in the Scorpio constellation, making it an interesting choice for babies born under that zodiac sign. It is the fifteenth-brightest star in the night sky, appearing as a reddish star when viewed with the naked eye. This reddish tint is what lent the star its name, whcih mean "equal to Ares" who is the god of war and associated with the red planet Mars.The sky's other name is Alpha Scorpii, but Antares is a far more romantic choice.

Antares

Aldebaran

In Greek mythology, Adrastea (or Adrasteia) was a nymph who helped raise the infant Zeus. It was also sometimes used as an alternate name for several other goddesses, and is the name of one of the moons of Jupiter. While many Ancient Greek names have already become quite popular -- Penelope was Number 27 in the U.S. in 2016 -- Adrastea remains almost completely undiscovered. It would be an intriguing alternative to Adrian, Adriana and even the whole Adeline/Adelaide family.

Adrastea

A floral Greek name that may appeal to those who enjoy Anthea, Athena, and Ianthe, but were also hoping for something more concise. It appears in Greek mythology as one of the Alcyonides, a nymph of fair weather who throws herself into the sea after the death of her father. She is transformed into a kingfisher, meaning this name has a double nature connection.
 
It is also the name of one of Saturn's moons and derives from athos, meaning "flower" or "blossom"

Anthe

Despite being a male character in Greek Mythology, we think Auriga wears better on a girl. It's the name of one of the 88 main constellations.

Auriga

Ananke

Antiope

Berna is a feminine name with multiple cultural origins. In Turkish, it means 'young, youthful,' while it also exists as a shortened form of Bernarda or Bernadette in Spanish and Portuguese-speaking regions. These longer forms derive from Germanic elements meaning 'brave as a bear.' Berna has a simple, accessible two-syllable structure that travels well across language boundaries. The name carries warmth and strength in its brevity, and its connection to the concept of youth gives it a vibrant energy. Though not widely used in English-speaking countries, Berna enjoys modest usage in parts of Europe, Turkey, and Latin America, making it recognizable internationally while remaining distinctive.

Berna

Best known as one of the moons of Jupiter, Callisto was a nymph coveted by Zeus who was turned into a bear by Hera, becoming the Great Bear (Ursa Major) constellation.