Lyra is a name with ancient and celestial roots that's found new popularity thanks to its starring role in Philip Pullman's book series, His Dark Materials and its subsequent movie and TV adaptions. Simple yet starry, Lyra is familiar but not overused in the US, where it ranks in the Top 500.

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

A bright, airy choice, Elara appears in Greek mythology and is borne by a lover of Zeus who gave birth to a giant son called Tityos. One of Jupiter's moons is named after her, adding a celestial feel to the name and an appealing connection to astronomy.

Esther was derived from the Old Persian word stāra, meaning "star." In the Old Testament, Esther, originally named Hadassah, was the captured Jewish wife of the King of Persia who risked her life to save her exiled people from annihilation. This story is celebrated by Jews on the holiday of Purim, so that it has traditionally been given to girls around that time.

Cosima, the kind of elegant and unusual name the British upper classes love to use for their daughters, is given to a handful of baby girls in the US after being chosen by two high-profile celebs in the same month; cool couple Sofia Coppola and Thomas Mars as well as supermodel Claudia Schiffer. It was used earlier by celebrity chef Nigella Lawson, while the male form, Cosimo, was given to the son of Marissa Ribisi and Beck.

While this may be the Dutch version of Cooper, English-speaking parents are likely to choose this with reference to the Kuiper Belt, a band of small space rocks near Neptune thought to be where many comets come from. With Kai or Ky as potential cool nicknames, this is one underused name with a lot to offer.