TYC 3318-01333-1 b
TYC 3318-01333-1 b is a cold gas giant orbiting TYC 3318-01333-1 in the constellation Perseus. It lies about 1,600 light-years from Earth and was discovered in 2018 using the radial velocity method.
Is TYC 3318-01333-1 b in the Habitable Zone?
TYC 3318-01333-1 b orbits inside the inner edge of the habitable zone of TYC 3318-01333-1. So close to its star, surface conditions are far too hot for liquid water.
Habitable zone of TYC 3318-01333-1: 3.186–7.776 AU (conservative: 4.036–7.372 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 TYC 3318-01333-1 b — one full orbit around TYC 3318-01333-1 — lasts 562.0 Earth days, longer than an Earth year. It orbits at an average distance of 1.414 AU. Its orbit is mildly elliptical (eccentricity 0.10).
How Was TYC 3318-01333-1 b Discovered?
TYC 3318-01333-1 b was discovered in 2018 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 TYC 3318-01333-1 b?
TYC 3318-01333-1 b is 1,600.2 light-years (490.6 parsecs) from Earth. Light arriving here tonight left the planet about 1,600 years ago. A probe traveling at the speed of Voyager 1 — about 17 km/s, the fastest outbound spacecraft ever launched — would need roughly 28,163,520 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. TYC 3318-01333-1 b scores 0.18, ranking #4,041 of 5,568 planets with a known ESI. For reference, Mars scores about 0.70.
The Host Star: TYC 3318-01333-1
TYC 3318-01333-1
- Surface temperature
- 4,776 K (Sun: 5,772 K)
- Mass
- 1.19 M☉
- Radius
- 5.90 R☉
- Luminosity
- 16.2181 L☉
Planetary System
TYC 3318-01333-1 b is the only planet known to orbit TYC 3318-01333-1 so far.
TYC 3318-01333-1 b — Complete Data
| Mass (best estimate) | 1,086.98 Earth masses |
|---|---|
| Orbital period | 562.00 days |
| Orbital distance | 1.414 AU |
| Eccentricity | 0.098 |
| Earth Similarity Index | 0.18 |
| Distance from Earth | 1,600.2 light-years (490.6 parsecs) |
| Constellation | Perseus |
| Discovery method | Radial Velocity |
| Discovery facility | Multiple Observatories |
| Discovery year | 2018 |
Data: NASA Exoplanet Archive, last updated 2018-01-23. Earth Similarity Index: PHL @ UPR Arecibo.
Frequently Asked Questions About TYC 3318-01333-1 b
Is TYC 3318-01333-1 b habitable?
No — TYC 3318-01333-1 b orbits too close to its star and is too hot for liquid water to exist on its surface.
How far away is TYC 3318-01333-1 b?
TYC 3318-01333-1 b is about 1,600 light-years from Earth in the constellation Perseus. A spacecraft traveling as fast as Voyager 1 (about 17 km/s) would need roughly 28,163,520 years to get there.
How long is a year on TYC 3318-01333-1 b?
One orbit around TYC 3318-01333-1 takes 562.0 Earth days.
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