TYC 4282-00605-1 b
TYC 4282-00605-1 b is a cold gas giant orbiting TYC 4282-00605-1 in the constellation Cepheus. It lies about 1,514 light-years from Earth and was discovered in 2017 using the radial velocity method.
Is TYC 4282-00605-1 b in the Habitable Zone?
TYC 4282-00605-1 b orbits inside the inner edge of the habitable zone of TYC 4282-00605-1. So close to its star, surface conditions are far too hot for liquid water.
Habitable zone of TYC 4282-00605-1: 7.256–18.098 AU (conservative: 9.191–17.159 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 4282-00605-1 b — one full orbit around TYC 4282-00605-1 — lasts 101.5 Earth days, between the years of Mercury (88 days) and Earth (365 days). It orbits at an average distance of 0.422 AU — comparable to the inner Solar System. Its orbit is mildly elliptical (eccentricity 0.28).
How Was TYC 4282-00605-1 b Discovered?
TYC 4282-00605-1 b was discovered in 2017 using the radial velocity method, with observations from Roque de los Muchachos Observatory.
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 4282-00605-1 b?
TYC 4282-00605-1 b is 1,513.8 light-years (464.1 parsecs) from Earth. Light arriving here tonight left the planet about 1,514 years ago. A probe traveling at the speed of Voyager 1 — about 17 km/s, the fastest outbound spacecraft ever launched — would need roughly 26,642,880 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 4282-00605-1 b scores 0.07, ranking #4,824 of 5,568 planets with a known ESI. For reference, Mars scores about 0.70.
The Host Star: TYC 4282-00605-1
TYC 4282-00605-1
- Surface temperature
- 4,300 K (Sun: 5,772 K)
- Mass
- 0.97 M☉
- Radius
- 16.21 R☉
- Luminosity
- 81.2831 L☉
- Age
- 10.1 billion years (Sun: 4.6)
Planetary System
TYC 4282-00605-1 b is the only planet known to orbit TYC 4282-00605-1 so far.
TYC 4282-00605-1 b — Complete Data
| Mass (best estimate) | 3,426.21 Earth masses |
|---|---|
| Orbital period | 101.54 days |
| Orbital distance | 0.422 AU |
| Eccentricity | 0.280 |
| Earth Similarity Index | 0.07 |
| Distance from Earth | 1,513.8 light-years (464.1 parsecs) |
| Constellation | Cepheus |
| Discovery method | Radial Velocity |
| Discovery facility | Roque de los Muchachos Observatory |
| Discovery year | 2017 |
Data: NASA Exoplanet Archive, last updated 2017-06-27. Earth Similarity Index: PHL @ UPR Arecibo.
Frequently Asked Questions About TYC 4282-00605-1 b
Is TYC 4282-00605-1 b habitable?
No — TYC 4282-00605-1 b orbits too close to its star and is too hot for liquid water to exist on its surface.
How far away is TYC 4282-00605-1 b?
TYC 4282-00605-1 b is about 1,514 light-years from Earth in the constellation Cepheus. A spacecraft traveling as fast as Voyager 1 (about 17 km/s) would need roughly 26,642,880 years to get there.
How long is a year on TYC 4282-00605-1 b?
One orbit around TYC 4282-00605-1 takes 101.5 Earth days.
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