HomeScienceMeet GI 410 b: Newly discovered puffy sub-Neptune planet orbiting Sun-like star

Meet GI 410 b: Newly discovered puffy sub-Neptune planet orbiting Sun-like star

The weight of GI 410 b is approximately 8.5 times the weight of Earth.

April 16, 2025 / 11:11 IST
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Neptune-size worlds may be more likely to form in the icy outer reaches of planetary systems than other kinds of planets. (Image: NASA)
Neptune-size worlds may be more likely to form in the icy outer reaches of planetary systems than other kinds of planets. (Image: NASA)

The discovery of new planets is always thrilling. This time, scientists have found an unusual planet orbiting a nearby star. GI 410 b, the newly discovered planet, falls in the sub-Neptune class and is larger than Earth.

Radial velocity was employed to establish the discovery on April 4. This technique, often termed the Doppler method, tracks the motions of small stars. When a planet exerts pressure on its star, these small changes occur. Over 600 planets have already been found with this method.

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The SPIRou instrument was used by scientists on a telescope in Hawaii. It observes GI 410 and similar near-infrared stars. There was more data from the French optical spectrograph SOPHIE. It made the process simpler to conclusively verify the existence of the planet.

Our knowledge of GI 410b