NASA (Exoplanet Catalog artwork)TIC 241249530 b
The most eccentric transiting planet, caught becoming a hot Jupiter
Overview
TIC 241249530 b is a gas giant exoplanet that orbits a F-type star. Its mass is 4.98 Jupiters, it takes 165.8 days to complete one orbit of its star, and is 0.641 AU from its star. Its discovery was announced in 2024.
Source: NASA Exoplanet Catalog
Why it matters
- Eccentricity of about 0.94 — a 167-day orbit that dives from Venus-like to Mercury-grazing distances.
- Orbits in the opposite direction to its star's rotation, pointing to a violent dynamical history.
- Over the next billion years tides should circularise it into a classic hot Jupiter.
Discovery & system
- Discovered
- 2024 · Transit · Transiting Exoplanet Survey Satellite (TESS)
- Discovery paper
- Gupta et al. 2024
- Host star
- TIC 241249530 · 6,166 K · 1.27 M☉
- System
- 1 known planet, 2 stars
The system
| World | Period | Distance | Radius | Mass | Temp. |
|---|---|---|---|---|---|
| TIC 241249530 b | 165.8 d | 0.641 AU | 1.19 R♃ | 4.98 M♃ | 439 K |
this worldhabitable zone 1.52 AU – 2.67 AUlog distance scaleorbital phases are arbitrarystar: type unknown, 6,166 K
By the numbers
- Radius
- 1.19 R♃13.3 R⊕
- Mass
- 4.98 M♃1,583 M⊕
- Orbital period
- 165.8 d0.45 yr
- Distance from star
- 0.641 AU96 million km
- Eccentricity
- 0.941highly elliptical
- Equilibrium temp.
- 439 K166 °C
- Starlight received
- 6 × Earth
- Distance from Earth
- 1,058 ly324.4 pc
- Density
- 3.7 g/cm³0.67 × Earth
Sources
Image: NASA (Exoplanet Catalog artwork) · NASA media: generally free of copyright · image page
Text: NASA Exoplanet Catalog. Taglines and highlights are editorial.