Planet KELT-4 Ab

Detailed information about planet KELT-4 Ab and its parameters.

Planet parameters Publications Observability Predictor

Planet

Name

KELT-4 Ab

Planet Status

Confirmed

Discovered in

2013

Publication Status

Published in a refereed paper

Update

2024-09-06

Mass

0.9 (\pm 0.06)

M_J

Mass*sin(i)

0.878 (\begin{matrix} + 0.07 \\ - 0.067 \end{matrix})

M_J 1 publication

KELT-4Ab: An Inflated Hot Jupiter Transiting the Bright (V ~ 10) Component of a Hierarchical Triple

Semi-Major Axis

0.04321 (\begin{matrix} + 0.00085 \\ - 0.00077 \end{matrix})

AU 1 publication

KELT-4Ab: An Inflated Hot Jupiter Transiting the Bright (V ~ 10) Component of a Hierarchical Triple

Orbital Period

2.989594 (\pm 5e-06)

day 2 publications

Obliquities of exoplanet host stars. Nineteen new, updated measurements for the sample of 205 measurements and observed trends
KELT-4Ab: An Inflated Hot Jupiter Transiting the Bright (V ~ 10) Component of a Hierarchical Triple

Eccentricity

0.03 (\begin{matrix} + 0.016 \\ - 0.021 \end{matrix})

1 publication

KELT-4Ab: An Inflated Hot Jupiter Transiting the Bright (V ~ 10) Component of a Hierarchical Triple

Angular distance

—

ω

300.0 (\begin{matrix} + 110.0 \\ - 130.0 \end{matrix})

deg 1 publication

KELT-4Ab: An Inflated Hot Jupiter Transiting the Bright (V ~ 10) Component of a Hierarchical Triple

T_peri

2456190.30201 (\pm 0.00022)

JD 1 publication

KELT-4Ab: An Inflated Hot Jupiter Transiting the Bright (V ~ 10) Component of a Hierarchical Triple

Radius

1.7 (\pm 0.05)

R_J 1 publication

KELT-4Ab: An Inflated Hot Jupiter Transiting the Bright (V ~ 10) Component of a Hierarchical Triple

Inclination

83.11 (\begin{matrix} + 0.48 \\ - 0.57 \end{matrix})

deg 1 publication

KELT-4Ab: An Inflated Hot Jupiter Transiting the Bright (V ~ 10) Component of a Hierarchical Triple

Detection Method

Radial Velocity

Mass Meas. Method

Radial Velocity

Radius Meas. Method

Primary Transit

Primary transit

—

Secondary transit

2456188.815 (\begin{matrix} + 0.047 \\ - 0.032 \end{matrix})

JD 1 publication

KELT-4Ab: An Inflated Hot Jupiter Transiting the Bright (V ~ 10) Component of a Hierarchical Triple

λ

80.0 (\pm 25.0)

deg 2 publications

Obliquities of exoplanet host stars. Nineteen new, updated measurements for the sample of 205 measurements and observed trends
KELT-4Ab: An Inflated Hot Jupiter Transiting the Bright (V ~ 10) Component of a Hierarchical Triple

Impact Parameter b

0.689 (\pm 0.0012)

Time V_r=0

—

Velocity Semiamplitude K

108.6 (\pm 7.4)

m/s 1 publication

KELT-4Ab: An Inflated Hot Jupiter Transiting the Bright (V ~ 10) Component of a Hierarchical Triple

Calculated temperature

1827.0 K 1 publication

KELT-4Ab: An Inflated Hot Jupiter Transiting the Bright (V ~ 10) Component of a Hierarchical Triple

Measured temperature

—

Hottest point longitude

—

Geometric albedo

—

Surface gravity log(g/g_H)

—

Alternate Names

BD+26 2091 Ab, TOI-5384.01

Data Source	Type	Result Value	Result Figure	Notes	Reference

Molecule	Data Source	Type	Result Value	Result Figure	Notes	Reference

Star

Name

KELT-4 A

Distance

211.0 (\pm 13.0)

pc 1 publication

KELT-4Ab: An Inflated Hot Jupiter Transiting the Bright (V ~ 10) Component of a Hierarchical Triple

Spectral type

F8IV

Apparent magnitude V

9.98

Apparent magnitude I

—

Apparent magnitude J

—

Apparent magnitude H

—

Apparent magnitude K

—

Mass

1.204 (\begin{matrix} + 0.072 \\ - 0.063 \end{matrix})

M_Sun 1 publication

KELT-4Ab: An Inflated Hot Jupiter Transiting the Bright (V ~ 10) Component of a Hierarchical Triple

Age

4.38 (\begin{matrix} + 0.81 \\ - 0.88 \end{matrix})

Gyr 1 publication

KELT-4Ab: An Inflated Hot Jupiter Transiting the Bright (V ~ 10) Component of a Hierarchical Triple

Effective temperature

6207.0 (\pm 76.0)

K 1 publication

KELT-4Ab: An Inflated Hot Jupiter Transiting the Bright (V ~ 10) Component of a Hierarchical Triple

Radius

1.61 (\begin{matrix} + 0.078 \\ - 0.068 \end{matrix})

R_Sun 1 publication

KELT-4Ab: An Inflated Hot Jupiter Transiting the Bright (V ~ 10) Component of a Hierarchical Triple

Metallicity [Fe/H]

-0.116 (\begin{matrix} + 0.067 \\ - 0.071 \end{matrix})

1 publication

KELT-4Ab: An Inflated Hot Jupiter Transiting the Bright (V ~ 10) Component of a Hierarchical Triple

Detected Disc

—

Magnetic Field

—

RA₂₀₀₀

10:28:15.0

Dec₂₀₀₀

+25:34:23.5

Alternate Names

BD+26 2091 A, TOI-5384

KELT-4 forms a triple system with a pair of late K dwarf companion stars 328 AUs away. The low-mass pair is separated by 10.3 AUs.

No link

Simbad
Most recent references (ADS)

Planet KELT-4 Ab

Planet

Basic informations 30 parameters

Atmospheric parameters : Temperatures 0 temperatures

Atmospheric parameters : Molecules 0 molecules

Remarks Some remarks

Other web pages No page

Star

Basic informations 17 parameters

Planetary system 1 planet

Remarks Some remarks

Other web pages No page

More data 2 references

Planet KELT-4 Ab

Planet

Basic informations 30 parameters

Atmospheric parameters : Temperatures 0 temperatures

Atmospheric parameters : Molecules 0 molecules

Remarks Some remarks

Other web pages No page

Star

Basic informations 17 parameters

Planetary system 1 planet

Remarks Some remarks

Other web pages No page

More data 2 references

Related publications

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Obliquities of exoplanet host stars. Nineteen new, updated measurements for the sample of 205 measurements and observed trends

Gaia Search for (sub)stellar Companions of Exoplanet Hosts

Precise Transit Photometry Using TESS: Updated Physical Properties for 28 Exoplanets Around Bright Stars

Original Research By Young Twinkle Students (ORBYTS): Ephemeris Refinement of Transiting Exoplanets III

KELT: The Kilodegree Extremely Little Telescope, a Survey for Exoplanets Transiting Bright, Hot Stars

The Frequency of Binary Companions Around KELT Planet Host Stars

A survey of eight hot Jupiters in secondary eclipse using WIRCam at CFHT

KELT-4Ab: An Inflated Hot Jupiter Transiting the Bright (V ~ 10) Component of a Hierarchical Triple

High-precision time-series photometry for the discovery and characterization of transiting exoplanets.