The Exoplanet system is called TRAPPIST-1, named after the Transiting Planets and Planetesimals Small Telescope in Chile. The image is a representation how the sky will look like on one of the planets in the system. Due to the close proximity of the planets in the sky one can easily see the other planets. Even Google on February 23 celebrated this phenomenal success by creating a doodle.
Notice the new @GoogleDoodles? It's about the 7 Earth-sized planets we discovered around nearby star! Get the news: https://t.co/G9tW3cJMnV pic.twitter.com/dOHB0bLqXn
— NASA (@NASA) February 23, 2017