KELT-14 b
KELT-14 b is a hot Jupiter orbiting the G4 star KELT-14 in the constellation Puppis. It lies about 816 light-years from Earth and was discovered in 2016 using the transit method.
How Big Is KELT-14 b?
KELT-14 b has a radius of 19.54 times that of Earth, or 1.74 times the radius of Jupiter. Its mass is 408 times that of Earth, giving it a density of 0.32 g/cm³ — closer to gas planets like Jupiter (1.33 g/cm³).
Is KELT-14 b in the Habitable Zone?
KELT-14 b orbits inside the inner edge of the habitable zone of KELT-14. So close to its star, surface conditions are far too hot for liquid water.
Habitable zone of KELT-14: 1.122–2.647 AU (conservative: 1.421–2.510 AU), per Kopparapu et al. (2014). Earth orbits the Sun at 1 AU.
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Temperature on KELT-14 b
The equilibrium temperature of KELT-14 b is about 1,970 K (1,697 °C) — hot enough to melt many metals. This estimate ignores any atmosphere, which could change surface temperatures dramatically — Earth's greenhouse effect adds about 33 °C.
Orbit and Year Length
A year on KELT-14 b — one full orbit around KELT-14 — lasts just 41.0 hours, shorter than Mercury's 88-day year. It orbits at an average distance of 0.030 AU — closer to its star than Mercury is to the Sun.
How Was KELT-14 b Discovered?
KELT-14 b was discovered in 2016 using the transit method, with observations from KELT-South.
The transit method watches a star for the tiny, regular dip in brightness that occurs when a planet crosses in front of it. The depth and timing of these dips reveal the planet's size and orbital period.
How Far Away Is KELT-14 b?
KELT-14 b is 815.8 light-years (250.1 parsecs) from Earth. Light arriving here tonight left the planet around the year 1211. A probe traveling at the speed of Voyager 1 — about 17 km/s, the fastest outbound spacecraft ever launched — would need roughly 14,358,080 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. KELT-14 b scores 0.05, ranking #5,294 of 5,568 planets with a known ESI. For reference, Mars scores about 0.70.
The Host Star: KELT-14
KELT-14
- Spectral type
- G4
- Surface temperature
- 5,720 K (Sun: 5,772 K)
- Mass
- 1.24 M☉
- Radius
- 1.52 R☉
- Age
- 5.1 billion years (Sun: 4.6)
Planetary System
KELT-14 b is the only planet known to orbit KELT-14 so far.
KELT-14 b — Complete Data
| Radius | 19.537 Earth radii (1.743 Jupiter radii) |
|---|---|
| Mass | 408.09 Earth masses (1.284 Jupiter masses) |
| Density | 0.32 g/cm³ (Earth: 5.51) |
| Orbital period | 1.71 days |
| Orbital distance | 0.030 AU |
| Equilibrium temperature | 1,970 K (1,697 °C) |
| Earth Similarity Index | 0.05 |
| Distance from Earth | 815.8 light-years (250.1 parsecs) |
| Constellation | Puppis |
| Discovery method | Transit |
| Discovery facility | KELT-South |
| Discovery year | 2016 |
Data: NASA Exoplanet Archive, last updated 2016-06-01. Earth Similarity Index: PHL @ UPR Arecibo.
Frequently Asked Questions About KELT-14 b
Is KELT-14 b habitable?
No — KELT-14 b orbits too close to its star and is too hot for liquid water to exist on its surface.
How far away is KELT-14 b?
KELT-14 b is about 816 light-years from Earth in the constellation Puppis. A spacecraft traveling as fast as Voyager 1 (about 17 km/s) would need roughly 14,358,080 years to get there.
How big is KELT-14 b compared to Earth?
KELT-14 b has 19.54 times the radius of Earth and about 408 times its mass.
How long is a year on KELT-14 b?
One orbit around KELT-14 takes 1.7 Earth days — short enough that 214 of its years would fit into one Earth year.
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