Planet HAT-P-20 Ac

Detailed information about planet HAT-P-20 Ac and its parameters.

Planet parameters Publications Observability Predictor

Planet

Name

HAT-P-20 Ac

Planet Status

Retracted

Discovered in

2013

Update

2024-07-31

Mass

1.9 (\begin{matrix} + 1.5 \\ - 1.5 \end{matrix})

M_J

Mass*sin(i)

1.9 (\begin{matrix} + 1.5 \\ - 1.5 \end{matrix})

M_J 1 publication

Friends of Hot Jupiters. I. A Radial Velocity Search for Massive, Long-period Companions to Close-in Gas Giant Planets

Semi-Major Axis

5.5 (\pm 3.5)

AU 1 publication

Friends of Hot Jupiters. I. A Radial Velocity Search for Massive, Long-period Companions to Close-in Gas Giant Planets

Orbital Period

—

Eccentricity

—

ω

—

T_peri

—

Radius

—

Inclination

—

Detection Method

Radial Velocity

Mass Meas. Method

—

Radius Meas. Method

—

Primary transit

—

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

—

Data Source	Type	Result Value	Result Figure	Notes	Reference

Molecule	Data Source	Type	Result Value	Result Figure	Notes	Reference

Sun et al. 2017 : The TTV signal is sue to spot crossing

No link

Star

Name

HAT-P-20 A

Distance

70.0 (\pm 3.0)

pc 1 publication

HAT-P-20b-HAT-P-23b: four massive transiting extrasolar planets

Spectral type

K7V

Apparent magnitude V

11.34

Mass

0.756 (\pm 0.028)

M_Sun 1 publication

HAT-P-20b-HAT-P-23b: four massive transiting extrasolar planets

Age

6.7 (\begin{matrix} + 3.8 \\ - 3.8 \end{matrix})

Gyr 1 publication

HAT-P-20b-HAT-P-23b: four massive transiting extrasolar planets

Effective temperature

4595.0 (\pm 80.0)

K 1 publication

HAT-P-20b-HAT-P-23b: four massive transiting extrasolar planets

Radius

0.694 (\pm 0.21)

R_Sun 1 publication

HAT-P-20b-HAT-P-23b: four massive transiting extrasolar planets

Metallicity [Fe/H]

0.35 (\pm 0.08)

1 publication

HAT-P-20b-HAT-P-23b: four massive transiting extrasolar planets

Detected Disc

—

Magnetic Field

—

RA₂₀₀₀

07:27:40.0

Dec₂₀₀₀

+24:20:11.0

Alternate Names

TOI-5096, POU 2795 A

Schlagenhauf et al. (2024) detect an M dwarf companion star 494 AUs away.

No link

Simbad
Most recent references (ADS)

Planet HAT-P-20 Ac

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 HAT-P-20 Ac

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

Search for Stellar Companions of Exoplanet Host Stars with AstraLux/CAHA 2.2 m

Gaia Search for (sub)stellar Companions of Exoplanet Hosts

Refined System Parameters and TTV Study of Transiting Exoplanetary System HAT-P-20

Friends of Hot Jupiters. I. A Radial Velocity Search for Massive, Long-period Companions to Close-in Gas Giant Planets

HAT-P-20b-HAT-P-23b: four massive transiting extrasolar planets