Elara is the name of one of Jupiter's moons. Prior to 1976, it was officially known as Jupiter VII, although it was sometimes informally called Hera. It is a very small moon, being only 43 km, or 26.7 miles in diameter.
There is a character called Elara Dorne in the Star Wars: The Old Republic video game.
There is an elf named Elara in the Great Multiverse video game.
Like many astronomical names, Elara comes from Greek Mythology. Elara was a human princess that Zeus seduced. She died giving birth to Tityos, son of Zeus and a giant. In 2014, 22 girls in the United States were named Elara.