Castor's twin in the constellation Gemini. That final x makes this name modern and cool.

Andromache is a name found scattered throughout ancient literature. She was Hector's long-suffering wife in The Iliad and The Odyssey, featured in The Trojan Women and Andromache by Euripides, then later appeared in Shakepeare's Troilus and Cressida, and Jean Racine's 1667 play Andromaque. It has not made many appearances in the modern world, but now Charlize Theron's character in The Old Guard 2 is named Andromache, nickname Andy.

One way to spin grandma Helen or Ellen's name off the beaten track. The legendary Azenor was a tragic 6th century Breton princess who was mother to a saint. This personage also may be known as Senara.

Ursa might be a good choice if you're looking for a bear name for your daughter but want to avoid the She Witch curse placed on Ursula by Disney's The Little Mermaid. Too bad, because Ursula is a classic and lovely name, but Ursa has less baggage.

Like a large proportion of traditional Hawaiian names, Hoku can be used for both girls and boys.

Adventurous parents are starting to look back to names of ancient gods like Mercury, Zeus, and Apollo. This one is also a planet and a metallic element, and has a friendly nickname, Merc. The Roman god Mercury, which derives from the Latin words for trade or wages, is the patron of tradesmen and travelers and the fastest-moving planet in the solar system. Mercury is the planet associated with the sign of Virgo, so this is one of the prime names for Virgo babies.

A celestial choice that's used both in Mexico and by Latinx Americans. The Hispanized form spelling Xitlali may be more familiar.

The Roman god of the underworld, the former ninth planet, a cartoon dog...but not a baby.

Sidra is an uncommon name shared by a gulf off the coast of Libya. Popular in the Jewish community of North Africa, its Hebrew meaning refers to a weekly reading portion of the Torah. In Arabic, it's the name of a tree, which is an Islamic symbol of the upper limit of heaven.

Both a first and last name, Zorina has a pretty, ballerina-like quality.

Appropriate for a girl born between late September and late October, Libra suggests both balance and freedom.

A pretty international form of Helena used in many Slavic languages, also sometimes spelled Yelena.

Nashira is one of those obscure space names that might rise along with such heavenly choices as Orion, Luna, and even Nevaeh. A giant star in Capricorn, Nashira is an unusual and attractive name with several positive associations.

An offbeat way to get to Gwen.

To most English speakers, Nana is the dog in Peter Pan, the daughter played by Emma Stone in Crazy Stupid Love, and another name for Grandma, however, it is also a diminutive of Nancy and Anna (meaning "grace"), of Ioanna or Joanna (meaning "God is gracious"), and of a whole variety of similar sounding choices, such as Diana, Oriana, Fernanda, and Inanna.

Bright and vibrant but elegant too, Estrella is a rising star among Hispanic families that would make a good cross-cultural choice too. A Spanish word name that literally means "star", it is similar to other popular names with the same stellar meaning such as Esther and Stella.

Could be the next Nova, now that celestial baby names are in the ascendent.

Arun is the common masculinization of the name Aruna, the Hindu god who drives the sun god Surya across the sky in his chariot. Aruna is also used as a female name.

The Greek mythological hunter who was turned into a constellation is much more often used for boys.

Elidi is intriguing but potentially confusing. Try the French Elodie instead.