According to NASA, the web’s extremely stable and accurate image quality allows these faint rings to be detected very close to Neptune.
Webb captured the poorest of Neptune’s 14 known moons. Dominating this Webb portrait of Neptune is a very bright point of light with the signature diffraction spikes seen in many of Webb’s images, but is not a star. Instead, it’s Neptune’s large and unusual moon, Triton.
Covered in a frozen glow of condensed nitrogen, Triton reflects an average of 70 percent of sunlight. Neptune is outshone in this image because the planet’s atmosphere is darkened by methane absorption at these infrared wavelengths.
Neptune has fascinated researchers since its discovery in 1846. It is 30 times farther from the Sun than Earth, and orbits in the farthest, darkest part of the outer solar system. The planet is classified as an ice giant due to the chemical composition of its interior.