Planet KELT-2 Ab

Detailed information about planet KELT-2 Ab and its parameters.

Planet parameters Publications Observability Predictor

Planet

Name

KELT-2 Ab

Planet Status

Confirmed

Discovered in

2012

Publication Status

—

Update

2024-08-01

Mass

1.486 (\begin{matrix} + 0.088 \\ - 0.088 \end{matrix})

M_J

Mass*sin(i)

—

Semi-Major Axis

0.05498 (\pm 0.0004)

AU 1 publication

KELT-2Ab: A Hot Jupiter Transiting the Bright (V=8.77) Primary Star of a Binary System

Orbital Period

4.1137914 (\pm 1e-05)

day 1 publication

KELT-2Ab: A Hot Jupiter Transiting the Bright (V=8.77) Primary Star of a Binary System

Eccentricity

0.185 (\pm 0.08)

1 publication

KELT-2Ab: A Hot Jupiter Transiting the Bright (V=8.77) Primary Star of a Binary System

Angular distance

0.000427 arcsec

ω

160.0 (\pm 110.0)

deg 1 publication

KELT-2Ab: A Hot Jupiter Transiting the Bright (V=8.77) Primary Star of a Binary System

T_peri

2455974.83 (\pm 1.2)

JD 1 publication

KELT-2Ab: A Hot Jupiter Transiting the Bright (V=8.77) Primary Star of a Binary System

Radius

1.306 (\begin{matrix} + 0.067 \\ - 0.067 \end{matrix})

R_J 1 publication

KELT-2Ab: A Hot Jupiter Transiting the Bright (V=8.77) Primary Star of a Binary System

Inclination

—

Detection Method

Primary Transit

Mass Meas. Method

—

Radius Meas. Method

—

Primary transit

2455974.60356 (\pm 0.00084)

JD 1 publication

KELT-2Ab: A Hot Jupiter Transiting the Bright (V=8.77) Primary Star of a Binary System

Secondary transit

—

λ

—

Impact Parameter b

—

Time V_r=0

—

Velocity Semiamplitude K

—

Calculated temperature

—

Measured temperature

—

Hottest point longitude

—

Geometric albedo

—

Surface gravity log(g/g_H)

—

Alternate Names

HD 42176 b, HD 42176 Ab, TOI-4612.01

Data Source	Type	Result Value	Result Figure	Notes	Reference

Molecule	Data Source	Type	Result Value	Result Figure	Notes	Reference

Star

Name

KELT-2 A

Distance

128.9 (\begin{matrix} + 8.8 \\ - 8.8 \end{matrix})

pc 1 publication

KELT-2Ab: A Hot Jupiter Transiting the Bright (V=8.77) Primary Star of a Binary System

Spectral type

F8IV

Apparent magnitude V

8.7

Apparent magnitude I

—

Apparent magnitude J

—

Apparent magnitude H

—

Apparent magnitude K

—

Mass

1.31 (\pm 0.03)

M_Sun 1 publication

KELT-2Ab: A Hot Jupiter Transiting the Bright (V=8.77) Primary Star of a Binary System

Age

—

Effective temperature

6148.0 (\pm 49.0)

K 1 publication

KELT-2Ab: A Hot Jupiter Transiting the Bright (V=8.77) Primary Star of a Binary System

Radius

1.842 (\begin{matrix} + 0.071 \\ - 0.071 \end{matrix})

R_Sun 1 publication

KELT-2Ab: A Hot Jupiter Transiting the Bright (V=8.77) Primary Star of a Binary System

Metallicity [Fe/H]

-0.015 (\pm 0.071)

1 publication

KELT-2Ab: A Hot Jupiter Transiting the Bright (V=8.77) Primary Star of a Binary System

Detected Disc

—

Magnetic Field

—

RA₂₀₀₀

06:10:39.0

Dec₂₀₀₀

+30:57:26.0

Alternate Names

HD 42716, TOI-4612

A K dwarf companion star lies 295 AUs away

No link

Simbad
Most recent references (ADS)

Planet KELT-2 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-2 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

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Very wide companion fraction from Gaia DR2: A weak or no enhancement for hot Jupiter hosts, and a strong enhancement for contact binaries

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

Ground- and Space-based Detection of the Thermal Emission Spectrum of the Transiting Hot Jupiter KELT-2Ab

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KELT-2Ab: A Hot Jupiter Transiting the Bright (V=8.77) Primary Star of a Binary System