UltraSuperPorkChop
| Discovery | |
|---|---|
| Discovered by | ESO Very Large Telescope (ERIS), James Webb Space Telescope |
| Discovery site | Cerro Paranal Observatory |
| Discovery date | July 15, 2026 |
| Direct imaging | |
| Orbital characteristics | |
| ~25–30 AU | |
| ~91 years | |
| Star | Beta Pictoris |
| Physical characteristics | |
| Mass | ~2.4 MJ |
Beta Pictoris d is a giant exoplanet orbiting the star Beta Pictoris, located about 63 light-years away in the constellation Pictor. It was announced in July 2026 following detection by the ESO Very Large Telescope (using the ERIS instrument) and confirmation with the James Webb Space Telescope. It is the third planet discovered in the Beta Pictoris system, making it only the second known planetary system (after HR 8799) with three directly imaged exoplanets.[1][2]
Discovery
Beta Pictoris d was first detected in mid‑2026 using direct imaging with the ERIS instrument on the Very Large Telescope in Chile. The planet was identified as a faint source orbiting at a wide separation from its star. Follow‑up observations with the James Webb Space Telescope’s NIRSpec instrument confirmed its planetary nature and allowed atmospheric characterization.[1][2]
Characteristics
The planet is estimated to have a mass of about 2.4 times that of Jupiter. It orbits Beta Pictoris at a distance of roughly 25–30 astronomical units, with an orbital period of approximately 91 years. Compared to its siblings Beta Pictoris b and c, it is cooler and fainter, making it one of the faintest exoplanets ever directly imaged.[1]
Significance
The discovery of Beta Pictoris d is notable because:
- It makes Beta Pictoris only the second system with three directly imaged exoplanets.
- It demonstrates the capabilities of next‑generation instruments like ERIS and JWST for detecting faint planetary companions.
- It provides new insights into the architecture of young planetary systems and the dynamics of debris disks.[1][2]
See also
References
External links
- [ESO press release on Beta Pictoris d](https://www.eso.org/public/news/eso2026beta-pictoris-d/)
- [NASA news release on JWST confirmation](https://www.nasa.gov/news-release/jwst-beta-pictoris-d-2026)
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