Planet HAT-P-57 Ab

Detailed information about planet HAT-P-57 Ab and its parameters.

Planet parameters Publications Observability Predictor

Planet

Name

HAT-P-57 Ab

Planet Status

Confirmed

Discovered in

2015

Publication Status

—

Update

2026-06-26

Mass

1.85 (\begin{matrix} + 0.0 \\ - 1.85 \end{matrix})

M_J

Mass*sin(i)

1.85 (\begin{matrix} + 0.0 \\ - 1.85 \end{matrix})

M_J 1 publication

HAT-P-57b: A Short-Period Giant Planet Transiting A Bright Rapidly Rotating A8V Star Confirmed Via Doppler Tomography

Semi-Major Axis

0.0406 (\pm 0.0011)

AU 1 publication

HAT-P-57b: A Short-Period Giant Planet Transiting A Bright Rapidly Rotating A8V Star Confirmed Via Doppler Tomography

Orbital Period

2.465295 (\pm 3.2e-06)

day 1 publication

HAT-P-57b: A Short-Period Giant Planet Transiting A Bright Rapidly Rotating A8V Star Confirmed Via Doppler Tomography

Eccentricity

0.0 1 publication

HAT-P-57b: A Short-Period Giant Planet Transiting A Bright Rapidly Rotating A8V Star Confirmed Via Doppler Tomography

Angular distance

—

ω

—

T_peri

—

Radius

1.413 (\begin{matrix} + 0.054 \\ - 0.054 \end{matrix})

R_J 1 publication

HAT-P-57b: A Short-Period Giant Planet Transiting A Bright Rapidly Rotating A8V Star Confirmed Via Doppler Tomography

Inclination

88.26 (\pm 0.85)

deg 1 publication

HAT-P-57b: A Short-Period Giant Planet Transiting A Bright Rapidly Rotating A8V Star Confirmed Via Doppler Tomography

Detection Method

Primary Transit

Mass Meas. Method

Radial Velocity

Radius Meas. Method

Primary Transit

Primary transit

2455113.48127 (\pm 0.00048)

JD 1 publication

HAT-P-57b: A Short-Period Giant Planet Transiting A Bright Rapidly Rotating A8V Star Confirmed Via Doppler Tomography

Secondary transit

—

λ

—

Impact Parameter b

0.031 (\begin{matrix} + 0.04 \\ - 0.023 \end{matrix})

1 publication

HAT-P-57b: A Short-Period Giant Planet Transiting A Bright Rapidly Rotating A8V Star Confirmed Via Doppler Tomography

Time V_r=0

—

Velocity Semiamplitude K

215.2 (\begin{matrix} + 0.0 \\ - 215.2 \end{matrix})

m/s 1 publication

HAT-P-57b: A Short-Period Giant Planet Transiting A Bright Rapidly Rotating A8V Star Confirmed Via Doppler Tomography

Calculated temperature

2200.0 K 1 publication

HAT-P-57b: A Short-Period Giant Planet Transiting A Bright Rapidly Rotating A8V Star Confirmed Via Doppler Tomography

Measured temperature

—

Hottest point longitude

—

Geometric albedo

—

Surface gravity log(g/g_H)

—

Alternate Names

TOI-7058.01

Data Source	Type	Result Value	Result Figure	Notes	Reference

Molecule	Data Source	Type	Result Value	Result Figure	Notes	Reference
H2O
H2O	Modeling	Detected 3σ				2026 - MENNI-GALLARDO P.

See also the specific Planets in Binaries webpage.

No link

Star

Name

HAT-P-57 A

Distance

303.0 (\pm 13.0)

pc 1 publication

HAT-P-57b: A Short-Period Giant Planet Transiting A Bright Rapidly Rotating A8V Star Confirmed Via Doppler Tomography

Spectral type

A8V

Apparent magnitude V

10.47

Apparent magnitude I

—

Apparent magnitude J

—

Apparent magnitude H

—

Apparent magnitude K

—

Mass

1.47 (\pm 0.12)

M_Sun 1 publication

HAT-P-57b: A Short-Period Giant Planet Transiting A Bright Rapidly Rotating A8V Star Confirmed Via Doppler Tomography

Age

1.0 (\begin{matrix} + 0.67 \\ - 0.51 \end{matrix})

Gyr 1 publication

HAT-P-57b: A Short-Period Giant Planet Transiting A Bright Rapidly Rotating A8V Star Confirmed Via Doppler Tomography

Effective temperature

7500.0 (\pm 250.0)

K 1 publication

HAT-P-57b: A Short-Period Giant Planet Transiting A Bright Rapidly Rotating A8V Star Confirmed Via Doppler Tomography

Radius

1.5 (\pm 0.05)

R_Sun 1 publication

HAT-P-57b: A Short-Period Giant Planet Transiting A Bright Rapidly Rotating A8V Star Confirmed Via Doppler Tomography

Metallicity [Fe/H]

-0.25 (\pm 0.25)

1 publication

HAT-P-57b: A Short-Period Giant Planet Transiting A Bright Rapidly Rotating A8V Star Confirmed Via Doppler Tomography

Detected Disc

—

Magnetic Field

—

RA₂₀₀₀

18:18:58.4

Dec₂₀₀₀

+10:35:50.1

Alternate Names

BD+10 3472, TOI-7058, TYC 1014-973-1, 1SWASP J181858.42+103550.1, 2MASS J18185842+1035502

A pair of M dwarf stars (0.6 and 0.5 M_Sol) lies 788 AUs away from the primary star. The companion stars are in turn separated each other by 78 AUs.

No link

Simbad
Most recent references (ADS)

Planet HAT-P-57 Ab

Planet

Basic informations 30 parameters

Atmospheric parameters : Temperatures 0 temperatures

Atmospheric parameters : Molecules 1 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 HAT-P-57 Ab

Planet

Basic informations 30 parameters

Atmospheric parameters : Temperatures 0 temperatures

Atmospheric parameters : Molecules 1 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

Aligned, Misaligned and Polar Orbits of Hot Jupiters: Measuring Spin-Orbit Angles via Doppler Tomography with HARPS-N

Cross-correlation transmission spectroscopy of ultra-hot Jupiters WASP-189b, HAT-P-57b, KELT-17b, and KELT-21b with GIANO-B

Featureless transmission spectra of 12 giant exoplanets observed by GTC/OSIRIS

High-resolution transmission spectroscopy study of ultra-hot Jupiters HAT-P-57b, KELT-17b, KELT-21b, KELT-7b, MASCARA-1b, and WASP-189b

Radius Study of Ten Transiting Hot Jupiter Exoplanets with Ground-Based Observations

HAT-P-57b: A Short-Period Giant Planet Transiting A Bright Rapidly Rotating A8V Star Confirmed Via Doppler Tomography