Astronomy:HD 85426 c
From HandWiki
| Discovery | |
|---|---|
| Discovered by | F. Lienhard |
| Discovery date | 2025 |
| Radial velocity | |
| Orbital characteristics | |
| 0.212 AU | |
| Eccentricity | 0.06 |
| Orbital period | 35.73 d |
| Star | HD 85426 |
| Physical characteristics | |
| Mass | 10.3 M⊕ |
HD 85426 c is a Neptunian exoplanet, discovered in 2025, orbiting the G-type star HD 85426 (also known as TOI-1774) in the constellation Leo Minor.[1] It is located about 176 light-years from Earth.[2][3]
The planet completes a full orbit around its star in approximately 35.73 Earth days at an average distance of about 0.212 AU.
HD 85426 c as a mass of approximately 10.3 M⊕ and the equilibrium surface temperature is estimated to be 640 ± 9 K, or about 367 °C.
References
- ↑ "HD 85426 c". 13 February 2026. https://science.nasa.gov/exoplanet-catalog/hd-85426-c/.
- ↑ "HD 85426 c Exoplanet Profile". https://www.stellarcatalog.com/exoplanet.php?planetID=102099.
- ↑ Lienhard, F.; Mortier, A.; Cameron, A. Collier; Cretignier, M.; Borsato, L.; John, A. Anna; Egger, J. A.; Stalport, M. G. et al. (12 November 2025). "HARPS-N, TESS, and CHEOPS* discover a transiting sub-Neptune and two outer companions around the bright solar analogue HD 85426". Monthly Notices of the Royal Astronomical Society 545 (3). doi:10.1093/mnras/staf1934. Bibcode: 2026MNRAS.545f1934L.
External links
TOI-1774 | NASA Exoplanet Archive
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