Exoplanet · Neptune-like planet
V1298 Tau c
V1298 Tau c is a Neptune-like planet orbiting the star V1298 Tau. Its year lasts 8.25 Earth days. It was discovered in 2019 by the Transit method.
| Host star | V1298 Tau |
|---|---|
| Distance | 352.9 light-years (108.2 pc) |
| Orbital period | 8.25 days |
| Orbital radius | 0.0824 AU |
| Eccentricity | 0.009 |
| Radius | 5.08 R⊕ · 0.453 R♃ |
| Mass | 4.7 M⊕ · 0.0148 M♃ |
| Density | 0.2 g/cm³ |
| Surface gravity | 0.182 × Earth |
| Equilibrium temperature | 953 K (680 °C) |
| Stellar flux received | 146 × Earth |
| Discovery method | Transit |
| Discovery year | 2019 |
| Discovered by | K2 |
Habitable zone
Inside the inner edge of the habitable zone: it receives 146 times the light the Earth does, too hot to keep liquid water on its surface.
Its star in the sky
In the planet's sky its star is a disc 8.5° across: 16 times the Sun as we see it from Earth.
In the sky
A telescope is needed to see it: its apparent magnitude is 10.23. Visible from the whole Northern Hemisphere and south to latitude 70° S. North of latitude 70° N it never sets. It stands highest at midnight in November, the best time to observe it.
Light's journey
The light you see tonight set out around the year 1673. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 6.3 million years.
Planets in the same system
- V1298 Tau d 12.4-day orbit · 6.53 R⊕
- V1298 Tau b 24.1-day orbit · 9.41 R⊕
- V1298 Tau e 48.7-day orbit · 10.2 R⊕
Data: NASA Exoplanet Archive, PSCompPars. Its look in the simulation is a rendering based on the measured radius, mass and temperature.