V830 Tau b
The parameters of this planet are disputed or ambiguous in the scientific literature.
V830 Tau b is a hot Jupiter orbiting V830 Tau in the constellation Taurus. It lies about 424 light-years from Earth and was discovered in 2016 using the radial velocity method.
Is V830 Tau b in the Habitable Zone?
V830 Tau b orbits inside the inner edge of the habitable zone of V830 Tau. So close to its star, surface conditions are far too hot for liquid water.
Habitable zone of V830 Tau: 0.872–2.181 AU (conservative: 1.105–2.067 AU), per Kopparapu et al. (2014). Earth orbits the Sun at 1 AU.
See the full interactive habitable-zone view in the Exoplanet Explorer app ›
Orbit and Year Length
A year on V830 Tau b — one full orbit around V830 Tau — lasts 4.93 Earth days, shorter than Mercury's 88-day year. It orbits at an average distance of 0.057 AU — closer to its star than Mercury is to the Sun.
How Was V830 Tau b Discovered?
V830 Tau b was discovered in 2016 using the radial velocity method, with observations from Multiple Observatories.
The radial velocity method measures the subtle wobble of a star caused by the gravitational pull of an orbiting planet, visible as periodic shifts in the star's light spectrum. The size of the wobble reveals the planet's minimum mass.
How Far Away Is V830 Tau b?
V830 Tau b is 424.4 light-years (130.1 parsecs) from Earth. Light arriving here tonight left the planet around the year 1602. A probe traveling at the speed of Voyager 1 — about 17 km/s, the fastest outbound spacecraft ever launched — would need roughly 7,469,440 years to make the journey.
Earth Similarity Index
The Earth Similarity Index (ESI) scores how physically similar a planet is to Earth, from 0 to 1, based on radius, density, escape velocity and surface temperature. V830 Tau b scores 0.07, ranking #5,000 of 5,568 planets with a known ESI. For reference, Mars scores about 0.70.
The Host Star: V830 Tau
V830 Tau
- Surface temperature
- 4,250 K (Sun: 5,772 K)
- Mass
- 1.00 M☉
- Radius
- 2.00 R☉
- Age
- 0.0 billion years (Sun: 4.6)
Planetary System
V830 Tau b is the only planet known to orbit V830 Tau so far.
V830 Tau b — Complete Data
| Mass | 222.48 Earth masses (0.700 Jupiter masses) |
|---|---|
| Orbital period | 4.93 days |
| Orbital distance | 0.057 AU |
| Earth Similarity Index | 0.07 |
| Distance from Earth | 424.4 light-years (130.1 parsecs) |
| Constellation | Taurus |
| Discovery method | Radial Velocity |
| Discovery facility | Multiple Observatories |
| Discovery year | 2016 |
Data: NASA Exoplanet Archive, last updated 2016-11-30. Earth Similarity Index: PHL @ UPR Arecibo.
Frequently Asked Questions About V830 Tau b
Is V830 Tau b habitable?
No — V830 Tau b orbits too close to its star and is too hot for liquid water to exist on its surface.
How far away is V830 Tau b?
V830 Tau b is about 424 light-years from Earth in the constellation Taurus. A spacecraft traveling as fast as Voyager 1 (about 17 km/s) would need roughly 7,469,440 years to get there.
How long is a year on V830 Tau b?
One orbit around V830 Tau takes 4.9 Earth days — short enough that 74 of its years would fit into one Earth year.
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