The name of the Roman goddess of the moon, Luna is derived straight from the Latin word for moon, luna. Luna may be the name most likely to surprise someone from an older generation by its Top 10 status in the US and its widespread international popularity.

Nova has the feel of both newness, from its meaning, and great energy as an astronomical term for a star that increases suddenly in brightness before fading.

Stella is a name with star quality and sparkle, that manages to sound both ethereal and earthy. Celestial but not otherworldly, it lands somewhere between the popular Ella and bold Seraphina.

Orion is a rising star, with both mythical and celestial overtones.

This bold choice soared in popularity from 2008 to 2013, and now seems to have plateaued. But watch out—the character Major Major Major Major in the classic absurdist novel Catch-22 had a terrible time.

This number name first came to public attention when Erykah Badu and Andre 3000 chose if for their son, Seven Sirius Benjamin, born in 1997. Over a decade later, David and Victoria Beckham used it as their daughter's middle name, and now in these days of unisex word names, it's rising for both sexes. It's certainly one of the most name-like numbers: after all, it's only a letter away from Steven.

Theta is the name of the eighth letter of the ancient Greek alphabet, which is also the symbol of death. As such, it has rarely been used as a baby name.

This simplified spelling is a bit too polyester, though this is also the authentic Slavic version of an Old Testament name that's being rediscovered.

The name of a heavenly planet and the Roman goddess of beauty and love was an intimidating no-no until tennis champ Venus Williams put an athletic, modern spin on it.

The first letter of the Greek alphabet ande the brightest star in every constellation, this would make an interesting choice for a first daughter, though it does give off some spectral sci-fi reverberations--and references to the term "alpha male.".

Most parents today would prefer the softer-sell Stella. But Star has symbolic power related to Christmas, so this could make one of the perfect names for December babies.

The sixth letter of the Greek alphabet, popularized by Welsh actress Catherine Zeta-Jones -- Zeta was her grandmother's first name. Zeta can also refer to the letter Z, the last in the Roman alphabet, or be a spelling variation of Zita, a name with several possible origins and meanings.

An obscure yet on-trend name with two wonderful meanings associated with it. Neoma is one of the freshest celestial girl names with moon-related meanings, rarer than Luna or Phoebe but with the same fluid sound.

A starry-eyed, intergalactic name, far rarer than Stella or Esther. It's attached both to a comic book character and to Princess Astra on "Doctor Who".

Even among the range of blue names on the current baby naming palette -- Blue itself, Azure, Cerulean, Teal, Aqua, Cyan, Indigo -- Cobalt remains the most unusual, not to mention the most masculine.

Even among the range of blue names on the current baby naming palette -- Blue itself, Azure, Cerulean, Teal, Aqua, Cyan, Indigo -- Cobalt remains the most unusual.