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Super-Jupiter

KELT-19 A b

Orbiting KELT-19 A | 300.3 parsecs away

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KELT-19 A b is a Super-Jupiter exoplanet (an exceptionally massive gas giant), about 21.4 times the radius of Earth. Its scorching equilibrium temperature of 1935 K (1662°C) makes it far too hot for liquid water. The planet completes one orbit around its star every 4.6 Earth days. It was discovered in 2017 using the transit method. It orbits the A-type star KELT-19 A, located approximately 300 parsecs (979 light-years) from Earth.

2017

Discovered

1293.6

Earth Masses

21.41

Earth Radii

1935

Temperature (K)

Discovery Information

Discovery MethodTransit
Discovery Year2,017
Discovery FacilityKELT

Orbital Properties

Orbital Period4.6117 days
Semi-Major Axis0.0637 AU
Inclination85.41 deg

Physical Properties

Mass (Jupiter)4.07 MJ
Mass (Earth)1,293.5681 M⊕
Radius (Jupiter)1.91 RJ
Radius (Earth)21.4092 R⊕
Density0.744 g/cm3
Eq. Temperature1,935 K
Insolation Flux2,340 S⊕
Planetary Extremes

Where KELT-19 A b sits on the spectrum of all known exoplanets.

Mass1293.6 M⊕
FeatherweightColossus
Radius21.41 R⊕
TinyEnormous
Temperature1935 K
FrozenInferno
Year Length4.6 days
LightningGlacial
Density0.74 g/cm³
FluffyIron-dense
Star Distance0.064 AU
ScorchedFrozen exile
Star System View
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Size Comparison
EarthKELT-19 A bJupiter

21.41x Earth's radius (1.91x Jupiter)

Orbit Comparison
EarthKELT-19 A b
Earth: 365.25 days (1 AU)KELT-19 A b: 4.6 Earth days (0.064 AU)
Host Star: KELT-19 A

Spectral TypeA8 V
Effective Temperature7,500 K
Mass1.62 M☉
Radius1.83 R☉
Size vs Sun1.83x larger
Luminosity9.4999 L☉
Luminosity vs Sun9.500x brighter
Metallicity [Fe/H]-0.12
Distance (pc)300.276 pc
Distance (ly)979.4 light-years
Planets in the KELT-19 A System

What If You Lived Here?

197.6 kg

Your weight (from 70 kg)

2.82g

Crushing

Standing upright is a struggle. Your body feels like lead.

4.6 Earth days

Year length

White sunrise

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