NGC_2138 is a bright planetary nebula located in the constellation of Lepus. It is approximately 3,000 light-years away from Earth and is known for its distinct round shape and vibrant colors, which are produced by the ionization of gas surrounding a dying star. The nebula was discovered by John Herschel in 1834 and is often studied for its unique features. It has a central star that is in the late stages of its life cycle, shedding its outer layers and creating the beautiful structure we see today.