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

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

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

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 28 parameters

Atmospheric parameters : Temperatures 0 temperatures

Atmospheric parameters : Molecules 0 molecules

Remarks Some remarks

Other web pages No page

Star

Basic informations 13 parameters

Planetary system 1 planet

Remarks Some remarks

Other web pages No page

More data 2 references

Planet KELT-4 Ab

Planet

Basic informations 28 parameters

Atmospheric parameters : Temperatures 0 temperatures

Atmospheric parameters : Molecules 0 molecules

Remarks Some remarks

Other web pages No page

Star

Basic informations 13 parameters

Planetary system 1 planet

Remarks Some remarks

Other web pages No page

More data 2 references

Related publications

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

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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.