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Neptune (NIRCam) Labeled

Image has a mostly dark background with one extremely bright point of light that dominates the upper left quadrant of the image and a glowing sphere towards the bottom middle of the image. The extremely bright point of light at the upper left of the image has 8 spikes pointing out from a center bright point like a compass. This is labeled Triton. The glowing sphere, is mostly white, almost neon, with a few extremely bright patches of methane-ice clouds. The glowing sphere is accompanied by several narrow, faint rings and 6 tiny white dots, which are Neptune's moons. They are labeled as Galatea, Naiad, Thalassa, Despina, Proteus and Larissa. Splattered throughout the mostly black background are about 10 small, dim circles of distant galaxies.

In this version of Webb’s Near-Infrared Camera (NIRCam) image of Neptune, the planet’s visible moons are labeled. Neptune has 14 known satellites, and seven of them are visible in this image.

Triton, the bright spot of light in the upper left of this image, far outshines Neptune because the planet’s atmosphere is darkened by methane absorption at wavelengths captured by Webb. Triton reflects an average of 70 percent of the sunlight that hits it. Triton, which orbits Neptune in a backward orbit, is suspected to have originally been a Kuiper belt object that was gravitationally captured by Neptune.

NIRCam was built by a team at the University of Arizona and Lockheed Martin’s Advanced Technology Center.

About the Object

  • Distance
    DistanceThe physical distance from Earth to the astronomical object. Distances within our solar system are usually measured in Astronomical Units (AU). Distances between stars are usually measured in light-years. Interstellar distances can also be measured in parsecs.
    Neptune's average distance from Earth is 2.7 billion miles

About the Data

  • Data Description
    Data DescriptionProposal: A description of the observations, their scientific justification, and the links to the data available in the science archive.
    Science Team: The astronomers who planned the observations and analyzed the data. "PI" refers to the Principal Investigator.

    This image was created from JWST data from proposal: 2739 (K. Pontoppidan).  

  • Instrument
    InstrumentThe science instrument used to produce the data.
    NIRCam
  • Exposure Dates
    Exposure DatesThe date(s) that the telescope made its observations and the total exposure time.
    12 July 2022
  • Filters
    FiltersThe camera filters that were used in the science observations.
    F140M, F210M, F300M, F460M
  • Object Name
    Object NameA name or catalog number that astronomers use to identify an astronomical object.
    Neptune
  • Object Description
    Object DescriptionThe type of astronomical object.
    Gas giant
  • Release Date
    September 21, 2022
  • Science Release
    New Webb Image Captures Clearest View of Neptune’s Rings in Decades
  • Credit
    Image: NASA, ESA, CSA, STScI; Image Processing: Joseph DePasquale (STScI), Naomi Rowe-Gurney (NASA-GSFC)

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Image has a mostly dark background with one extremely bright point of light that dominates the upper left quadrant of the image and a glowing sphere towards the bottom middle of the image. The extremely bright point of light at the upper left of the image has 8 spikes pointing out from a center bright point like a compass. This is labeled Triton. The glowing sphere, is mostly white, almost neon, with a few extremely bright patches of methane-ice clouds. The glowing sphere is accompanied by several narrow, faint rings and 6 tiny white dots, which are Neptune's moons. They are labeled as Galatea, Naiad, Thalassa, Despina, Proteus and Larissa. Splattered throughout the mostly black background are about 10 small, dim circles of distant galaxies.
Color Info
Color InfoA brief description of the methods used to convert telescope data into the color image being presented.

These images are a composite of separate exposures acquired by the James Webb Space Telescope using the NIRCam instrument. Several filters were used to sample different infraraed wavelength ranges. The color results from assigning different hues (colors) to each monochromatic (grayscale) image associated with an individual filter. In this case, the assigned colors are: Red: F460M Orange: F300M Green: F210M Blue: F140M

Compass and Scale
Compass and ScaleAn astronomical image with a scale that shows how large an object is on the sky, a compass that shows how the object is oriented on the sky, and the filters with which the image was made.

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Details

Last Updated
Aug 28, 2025
Contact
Media

Laura Betz
NASA’s Goddard Space Flight Center
Greenbelt, Maryland
laura.e.betz@nasa.gov

Image Credit

NASA, ESA, CSA, STScI

Image Processing Credit

Joseph DePasquale (STScI), Naomi Rowe-Gurney (NASA-GSFC)